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The art of memory (Latin: ''ars memoriae'') is any of a number of loosely associated
mnemonic A mnemonic ( ) device, or memory device, is any learning technique that aids information retention or retrieval (remembering) in the human memory for better understanding. Mnemonics make use of elaborative encoding, retrieval cues, and image ...
principles and techniques used to organize memory impressions, improve recall, and assist in the combination and 'invention' of ideas. An alternative term is "Ars Memorativa" which is also translated as "art of memory" although its more literal meaning is "Memorative Art". It is also referred to as ''mnemotechnics''. It is an 'art' in the Aristotelian sense, which is to say a method or set of prescriptions that adds order and discipline to the pragmatic, natural activities of human beings.Carruthers 1990, p. 123 It has existed as a recognized group of principles and techniques since at least as early as the middle of the
first millennium BCE The 1st millennium BC, also known as the last millennium BC, was the period of time lasting from the years 1000 BC to 1 BC ( 10th to 1st centuries BC; in astronomy: JD – ). It encompasses the Iron Age in the Old World and sees the transiti ...
, and was usually associated with training in
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate par ...
or
logic Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or of logical truths. It is a formal science investigating how conclusions follow from prem ...
, but variants of the art were employed in other contexts, particularly the religious and the magical. Techniques commonly employed in the art include the association of emotionally striking memory images within visualized locations, the chaining or association of groups of images, the association of images with schematic graphics or ''notae'' ("signs, markings, figures" in Latin), and the association of text with images. Any or all of these techniques were often used in combination with the contemplation or study of architecture, books, sculpture and painting, which were seen by practitioners of the art of memory as externalizations of internal memory images and/or organization. Because of the variety of principles and techniques, and their various applications, some researchers refer to "the arts of memory", rather than to a single art.


Origins and history

It has been suggested that the art of memory originated among the
Pythagoreans Pythagoreanism originated in the 6th century BC, based on and around the teachings and beliefs held by Pythagoras and his followers, the Pythagoreans. Pythagoras established the first Pythagorean community in the ancient Greek colony of Kroton, ...
or perhaps even earlier among the ancient Egyptians, but no conclusive evidence has been presented to support these claims. The primary classical sources for the art of memory which deal with the subject at length include the ''
Rhetorica ad Herennium The ''Rhetorica ad Herennium'' (''Rhetoric for Herennius''), formerly attributed to Cicero or Cornificius, but in fact of unknown authorship, sometimes ascribed to an unnamed doctor, is the oldest surviving Latin book on rhetoric, dating from the ...
'' (Bk III),
Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the esta ...
's ''
De oratore ''De Oratore'' (''On the Orator''; not to be confused with '' Orator'') is a dialogue written by Cicero in 55 BC. It is set in 91 BC, when Lucius Licinius Crassus dies, just before the Social War and the civil war between Marius and Sulla, d ...
'' (Bk II 350–360), and
Quintilian Marcus Fabius Quintilianus (; 35 – 100 AD) was a Roman educator and rhetorician from Hispania, widely referred to in medieval schools of rhetoric and in Renaissance writing. In English translation, he is usually referred to as Quintilia ...
's ''
Institutio Oratoria ''Institutio Oratoria'' (English: Institutes of Oratory) is a twelve-volume textbook on the theory and practice of rhetoric by Roman rhetorician Quintilian. It was published around year 95 AD. The work deals also with the foundational education ...
'' (Bk XI). Additionally, the art is mentioned in fragments from earlier Greek works including the '' Dialexis'', dated to approximately 400 BCE.
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of ...
wrote extensively on the subject of memory, and mentions the technique of the placement of images to lend order to memory. Passages in his works '' On The Soul'' and '' On Memory and Reminiscence'' proved to be influential in the later revival of the art among medieval Scholastics. The most common account of the creation of the art of memory centers around the story of Simonides of Ceos, a famous Greek poet, who was invited to chant a lyric poem in honor of his host, a nobleman of
Thessaly Thessaly ( el, Θεσσαλία, translit=Thessalía, ; ancient Thessalian: , ) is a traditional geographic and modern administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thes ...
. While praising his host, Simonides also mentioned the twin gods
Castor and Pollux Castor; grc, Κάστωρ, Kástōr, beaver. and Pollux. (or Polydeukes). are twin half-brothers in Greek and Roman mythology, known together as the Dioscuri.; grc, Διόσκουροι, Dióskouroi, sons of Zeus, links=no, from ''Dîos'' ('Z ...
. When the recital was complete, the nobleman selfishly told Simonides that he would only pay him half of the agreed upon payment for the
panegyric A panegyric ( or ) is a formal public speech or written verse, delivered in high praise of a person or thing. The original panegyrics were speeches delivered at public events in ancient Athens. Etymology The word originated as a compound of gr ...
, and that he would have to get the balance of the payment from the two gods he had mentioned. A short time later, Simonides was told that two men were waiting for him outside. He left to meet the visitors but could find no one. Then, while he was outside the banquet hall, it collapsed, crushing everyone within. The bodies were so disfigured that they could not be identified for proper burial. But, Simonides was able to remember where each of the guests had been sitting at the table, and so was able to identify them for burial. This experience suggested to Simonides the principles which were to become central to the later development of the art he reputedly invented.
He inferred that persons desiring to train this faculty (of memory) must select places and form mental images of the things they wish to remember and store those images in the places, so that the order of the places will preserve the order of the things, and the images of the things will denote the things themselves, and we shall employ the places and the images respectively as a wax writing-tablet and the letters written upon it.
The early
Christian monks Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρ� ...
adapted techniques common in the art of memory as an art of composition and
meditation Meditation is a practice in which an individual uses a technique – such as mindfulness, or focusing the mind on a particular object, thought, or activity – to train attention and awareness, and achieve a mentally clear and emotionally calm ...
, which was in keeping with the
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate par ...
al and
dialectic Dialectic ( grc-gre, διαλεκτική, ''dialektikḗ''; related to dialogue; german: Dialektik), also known as the dialectical method, is a discourse between two or more people holding different points of view about a subject but wishing ...
al context in which it was originally taught. It became the basic method for reading and meditating upon the Bible after making the text secure within one's memory. Within this tradition, the art of memory was passed along to the later
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
and the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ide ...
(or Early Modern period). When Cicero and Quintilian were revived after the 13th century, humanist scholars understood the language of these ancient writers within the context of the medieval traditions they knew best, which were profoundly altered by monastic practices of meditative reading and composition.
Saint Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known w ...
was an important influence in promoting the art when, in following Cicero's categorization, he defined it as a part of
Prudence Prudence ( la, prudentia, contracted from meaning "seeing ahead, sagacity") is the ability to govern and discipline oneself by the use of reason. It is classically considered to be a virtue, and in particular one of the four Cardinal virtue ...
and recommended its use to meditate on the virtues and to improve one's piety. In
scholasticism Scholasticism was a medieval school of philosophy that employed a critical organic method of philosophical analysis predicated upon the Aristotelian 10 Categories. Christian scholasticism emerged within the monastic schools that translat ...
artificial memory came to be used as a method for recollecting the whole universe and the roads to Heaven and Hell. The Dominicans were particularly important in promoting its uses, see for example
Cosmos Rossellius Cosmos Rossellius (died 1578) was a Florentine Dominican friar who wrote a book about memory. ''Theasurus artificosae memoria'' was published in Venice in 1579. He gives a Dante-esque description of hell as a memory space system arranged around ...
. The
Jesuit , image = Ihs-logo.svg , image_size = 175px , caption = ChristogramOfficial seal of the Jesuits , abbreviation = SJ , nickname = Jesuits , formation = , founders ...
missionary
Matteo Ricci Matteo Ricci, SJ (; la, Mattheus Riccius; 6 October 1552 – 11 May 1610), was an Italian Jesuit priest and one of the founding figures of the Jesuit China missions. He created the , a 1602 map of the world written in Chinese characters. ...
- who from 1582 until his death in 1610, worked to introduce
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It is the world's largest and most widespread religion with roughly 2.38 billion followers representing one-third of the global popula ...
to China - described the system of places and images in his work, ''A Treatise On Mnemonics''. However, he advanced it only as an aid to passing examinations (a kind of rote memorization) rather than as a means of new composition, though it had traditionally been taught, both in dialectics and in rhetoric, as a tool for such composition or 'invention'. Ricci was apparently trying to gain favour with the Chinese imperial service, which required a notoriously difficult entry examination. Perhaps following the example of Metrodorus of Scepsis, vaguely described in Quintilian's ''Institutio oratoria'',
Giordano Bruno Giordano Bruno (; ; la, Iordanus Brunus Nolanus; born Filippo Bruno, January or February 1548 – 17 February 1600) was an Italian philosopher, mathematician, poet, cosmological theorist, and Hermetic occultist. He is known for his cosmolog ...
, a defrocked Dominican, used a variation of the art in which the trained memory was based in some fashion upon the zodiac. Apparently, his elaborate method was also based in part on the combinatoric concentric circles of
Ramon Llull Ramon Llull (; c. 1232 – c. 1315/16) was a philosopher, theologian, poet, missionary, and Christian apologist from the Kingdom of Majorca. He invented a philosophical system known as the ''Art'', conceived as a type of universal logic to pro ...
, in part upon schematic diagrams in keeping with medieval ''Ars Notoria'' traditions, in part upon groups of words and images associated with late antique
Hermeticism Hermeticism, or Hermetism, is a philosophical system that is primarily based on the purported teachings of Hermes Trismegistus (a legendary Hellenistic combination of the Greek god Hermes and the Egyptian god Thoth). These teachings are containe ...
, and in part upon the classical architectural mnemonic. According to one influential interpretation, his memory system was intended to fill the mind of the practitioner with images representing all knowledge of the world, and was to be used, in a magical sense, as an avenue to reach the intelligible world beyond appearances, and thus enable one to powerfully influence events in the real world. Such enthusiastic claims for the encyclopedic reach of the art of memory are a feature of the early Renaissance, but the art also gave rise to better-known developments in logic and
scientific method The scientific method is an empirical method for acquiring knowledge that has characterized the development of science since at least the 17th century (with notable practitioners in previous centuries; see the article history of scientifi ...
during the sixteenth and seventeenth centuries. However, this transition was not without its difficulties, and during this period the belief in the effectiveness of the older methods of memory training (to say nothing of the esteem in which its practitioners were held) steadily became occluded. In 1442, a huge controversy over the method broke out in England when the
Puritans The Puritans were English Protestants in the 16th and 17th centuries who sought to purify the Church of England of Roman Catholic practices, maintaining that the Church of England had not been fully reformed and should become more Protestant. ...
attacked the art as impious because it was thought to excite absurd and obscene thoughts; this was a sensational, but ultimately not a fatal skirmish.
Erasmus Desiderius Erasmus Roterodamus (; ; English: Erasmus of Rotterdam or Erasmus;''Erasmus'' was his baptismal name, given after St. Erasmus of Formiae. ''Desiderius'' was an adopted additional name, which he used from 1496. The ''Roterodamus'' w ...
of Rotterdam and other humanists, Protestant and Catholic, had also chastised practitioners of the art of memory for making extravagant claims for its efficacy, although they themselves believed firmly in a well-disposed, orderly memory as an essential tool of productive thought. One explanation for the steady decline in the importance of the art of memory from the 16th to the 20th century is offered by the late
Ioan P. Culianu Ioan Petru Culianu or Couliano (5 January 1950 – 21 May 1991) was a Romanian historian of religion, culture, and ideas, a philosopher and political essayist, and a short story writer. He served as professor of the history of religions at t ...
, who argued that it was suppressed during the
Reformation The Reformation (alternatively named the Protestant Reformation or the European Reformation) was a major movement within Western Christianity in 16th-century Europe that posed a religious and political challenge to the Catholic Church and in ...
and
Counter-Reformation The Counter-Reformation (), also called the Catholic Reformation () or the Catholic Revival, was the period of Catholic resurgence that was initiated in response to the Protestant Reformation. It began with the Council of Trent (1545–1563) a ...
when Protestants and reactionary Catholics alike worked to eradicate pagan influence and the lush visual imagery of the Renaissance. Whatever the causes, in keeping with general developments, the art of memory eventually came to be defined primarily as a part of
Dialectics Dialectic ( grc-gre, διαλεκτική, ''dialektikḗ''; related to dialogue; german: Dialektik), also known as the dialectical method, is a discourse between two or more people holding different points of view about a subject but wishing t ...
, and was assimilated in the 17th century by
Francis Bacon Francis Bacon, 1st Viscount St Alban (; 22 January 1561 – 9 April 1626), also known as Lord Verulam, was an English philosopher and statesman who served as Attorney General and Lord Chancellor of England. Bacon led the advancement of both ...
and
René Descartes René Descartes ( or ; ; Latinized: Renatus Cartesius; 31 March 1596 – 11 February 1650) was a French philosopher, scientist, and mathematician, widely considered a seminal figure in the emergence of modern philosophy and science. Ma ...
into the curriculum of Logic, where it survives to this day as a necessary foundation for the teaching of Argument. Simplified variants of the art of memory were also taught through the 19th century as useful to public orators, including preachers and after-dinner speakers.


Principles


Visual sense and spatial memory

Perhaps the most important principle of the art is the dominance of the visual sense in combination with the orientation of 'seen' objects within space. This principle is reflected in the early ''Dialexis'' fragment on memory, and is found throughout later texts on the art. Mary Carruthers, in a review of
Hugh of St. Victor Hugh of Saint Victor ( 1096 – 11 February 1141), was a Saxon canon regular and a leading theologian and writer on mystical theology. Life As with many medieval figures, little is known about Hugh's early life. He was probably born in the 1090s ...
's ''Didascalion'', emphasizes the importance of the visual sense as follows:
Even what we hear must be attached to a visual image. To help recall something we have heard rather than seen, we should attach to their words the appearance, facial expression, and gestures of the person speaking as well as the appearance of the room. The speaker should therefore create strong visual images, through expression and gesture, which will fix the impression of his words. All the rhetorical textbooks contain detailed advice on declamatory gesture and expression; this underscores the insistence of Aristotle, Avicenna, and other philosophers, on the primacy and security for memory of the visual over all other sensory modes, auditory, tactile, and the rest.
This passage emphasizes the association of the visual sense with spatial orientation. The image of the speaker is placed ''in a room''. The importance of the visual sense in the art of memory would seem to lead naturally to the importance of a spatial context, given that our sight and depth-perception naturally position images seen within space.


Order

The positioning of images in visual space leads naturally to an order, furthermore, an order to which we are naturally accustomed as biological organisms, deriving as it does from the sense perceptions we use to orient ourselves in the world. This fact perhaps sheds light on the relationship between the ''artificial'' and the ''natural'' memory, which were clearly distinguished in antiquity.
It is possible for one with a well-trained memory to compose clearly in an organized fashion on several different subjects. Once one has the all-important starting-place of the ordering scheme and the contents firmly in their places within it, it is quite possible to move back and forth from one distinct composition to another without losing one's place or becoming confused.
Again discussing Hugh of St. Victor's works on memory, Carruthers clearly notes the critical importance of order in memory:
One must have a rigid, easily retained order, with a definite beginning. Into this order one places the components of what one wishes to memorize and recall. As a money-changer ("nummularium") separates and classifies his coins by type in his money bag ("sacculum," "marsupium"), so the contents of wisdom's storehouse ("thesaurus," "archa"), which is the memory, must be classified according to a definite, orderly scheme.


Limited sets

Many works discussing the art of memory emphasize the importance of ''brevitas'' and ''divisio'', or the breaking up of a long series into more manageable sets. This is reflected in advice on forming images or groups of images which can be taken in at a single glance, as well as in discussions of memorizing lengthy passages, "A long text must always be broken up into short segments, numbered, then memorized a few pieces at a time." This is known in modern terminology as
chunking Chunking may mean: * Chunking (division), an approach for doing simple mathematical division sums, by repeated subtraction * Chunking (computational linguistics), a method for parsing natural language sentences into partial syntactic structures * ...
.


Association

Association was considered to be of critical importance for the practice of the art. However, it was clearly recognized that associations in memory are idiosyncratic, hence, what works for one will not automatically work for all. For this reason, the associative values given for images in memory texts are usually intended as examples and are not intended to be "universally normative". Yates offers a passage from Aristotle that briefly outlines the principle of association. In it, he mentions the importance of a starting point to initiate a chain of recollection, and the way in which it serves as a stimulating cause.
For this reason some use places for the purposes of recollecting. The reason for this is that men pass rapidly from one step to the next; for instance from milk to white, from white to air, from air to damp; after which one recollects autumn, supposing that one is trying to recollect the season.


Affect

The importance of affect or emotion in the art of memory is frequently discussed. The role of emotion in the art can be divided into two major groupings: the first is the role of emotion in the process of seating or fixing images in the memory, the second is the way in which the recollection of a memory image can evoke an emotional response. One of the earliest sources discussing the art, the ''Ad Herennium'' emphasizes the importance of using emotionally striking imagery to ensure that the images will be retained in memory:
We ought, then, to set up images of a kind that can adhere longest in memory. And we shall do so if we establish similitudes as striking as possible; if we set up images that are not many or vague but active; if we assign to them exceptional beauty or singular ugliness; if we ornament some of them, as with crowns or purple cloaks, so that the similitude may be more distinct to us; or if we somehow disfigure them, as by introducing one stained with blood or soiled with mud and smeared with red paint, so that its form is more striking, or by assigning certain comic effects to our images, for that, too, will ensure our remembering them more readily.
On the other hand, the image associated with an emotion will call up the emotion when recollected. Carruthers discusses this in the context of the way in which the trained medieval memory was thought to be intimately related with the development of prudence or moral judgement.
Since each phantasm is a combination not only of the neutral form of the perception, but of our response to it (''intentio'') concerning whether it is helpful or hurtful, the phantasm by its very nature evokes emotion. This is how the phantasm and the memory which stores it helps to cause or bring into being moral excellence and ethical judgement.
In modern terminology, the concept that contains salient, bizarre, shocking, or simply unusual information will be more easily remembered. This can be referred to as the Von Restorff effect.


Repetition

The well-known role of repetition in the common process of memorization of course plays a role in the more complex techniques of the art of memory. The earliest of the references to the art of memory, the ''Dialexis'', mentioned above, makes this clear: "repeat again what you hear; for by often hearing and saying the same things, what you have learned comes complete into your memory." Similar advice is a commonplace in later works on the art of memory.


Techniques

The art of memory employed a number of techniques which can be grouped as follows for purposes of discussion, however they were usually used in some combination:


Architectural mnemonic

The architectural mnemonic was a key group of techniques employed in the art of memory. It is based on the use of places (Latin ''loci''), which were memorized by practitioners as the framework or ordering structure that would 'contain' the images or signs 'placed' within it to record experience or knowledge. To use this method one might walk through a building several times, viewing distinct places within it, in the same order each time. After the necessary repetitions of this process, one should be able to remember and visualize each of the places reliably and in order. If one wished to remember, for example, a speech, one could break up the content of the speech into images or signs used to memorize its parts, which would then be 'placed' in the locations previously memorized. The components of the speech could then be recalled in order by imagining that one is walking through the building again, visiting each of the loci in order, viewing the images there, and thereby recalling the elements of the speech in order. A reference to these techniques survives to this day in the common English phrases "in the first place", "in the second place", and so forth. These techniques, or variants, are sometimes referred to as "the method of loci", which is discussed in a separate section below. The primary source for the architectural mnemonic is the anonymous ''Rhetorica ad Herennium'', a Latin work on rhetoric from the first century BCE. It is unlikely that the technique originated with the author of the ''Ad Herennium''. The technique is also mentioned by
Cicero Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the esta ...
and Quintilian. According to the account in the ''Ad Herennium'' (Book III) backgrounds or 'places' are like wax tablets, and the images that are 'placed' on or within them are like writing. Real physical locations were apparently commonly used as the basis of memory places, as the author of the ''Ad Herennium'' suggests
it will be more advantageous to obtain backgrounds in a deserted than in a populous region, because the crowding and passing to and fro of people confuse and weaken the impress of the images, while solitude keeps their outlines sharp.
However, real physical locations were not the only source of places. The author goes on to suggest
if we are not content with our ready-made supply of backgrounds, we may in our imagination create a region for ourselves and obtain a most serviceable distribution of appropriate backgrounds.
Places or backgrounds hence require, and reciprocally impose, order (often deriving from the spatial characteristics of the physical location memorized, in cases where an actual physical structure provided the basis for the 'places'). This order itself organizes the images, preventing confusion during recall. The anonymous author also advises that places should be well lit, with orderly intervals, and distinct from one another. He recommends a virtual 'viewing distance' sufficient to allow the viewer to encompass the space and the images it contains with a single glance. Turning to images, the anonymous author asserts that they are of two kinds: those establishing a likeness based upon subject, and those establishing a likeness based upon a word. This was the basis for the subsequent distinction, commonly found in works on the art of memory, between 'memory for words' and 'memory for things'. He provides the following famous example of a likeness based upon subject:
Often we encompass the record of an entire matter by one notation, a single image. For example, the prosecutor has said that the defendant killed a man by poison, has charged that the motive for the crime was an inheritance, and declared that there are many witnesses and accessories to this act. If in order to facilitate our defense we wish to remember this first point, we shall in our first background form an image of the whole matter. We shall picture the man in question as lying ill in bed, if we know his person. If we do not know him, we shall yet take some one to be our invalid, but not a man of the lowest class, so that he may come to mind at once. And we shall place the defendant at the bedside, holding in his right hand a cup, and in his left hand tablets, and on the fourth finger a ram's testicles (Latin ''testiculi'' suggests ''testes'' or witnesses). In this way we can record the man who was poisoned, the inheritance, and the witnesses.
In order to memorize likenesses based on words he provides an example of a verse and describes how images may be placed, each of which corresponds to words in the verse. He notes however that the technique will not work without combination with rote memorization of the verse, so that the images call to mind the previously memorized words. The architectural mnemonic was also related to the broader concept of learning and thinking. Aristotle considered the technique in relation to topica, or conceptual areas or issues. In his ''Topics'' he suggested
For just as in a person with a trained memory, a memory of things themselves is immediately caused by the mere mention of their places, so these habits too will make a man readier in reasoning, because he has his premisses classified before his mind's eye, each under its number.


Graphical mnemonic

The architectural mnemonic is often characterized as the art of memory itself. However primary sources show that from very early in the development of the art, non-physical or abstract locations and/or spatial graphics were employed as memory 'places'. Perhaps the most famous example of such an abstract system of 'places' is the memory system of Metrodorus of Scepsis, who was said by Quintilian to have organized his memory using a system of backgrounds in which he "found three hundred and sixty places in the twelve signs of the zodiac through which the sun moves". Some researchers (L.A. Post and Yates) believe it likely that Metorodorus organized his memory using places based in some way upon the signs of the zodiac. In any case Quintilian makes it clear that non-alphabetic signs can be employed as memory images, and even goes on to mention how 'shorthand' signs (''notae'') can be used to signify things that would otherwise be impossible to capture in the form of a definite image (he gives "conjunctions" as an example). This makes it clear that though the architectural mnemonic with its buildings, niches and three-dimensional images was a major theme of the art as practiced in classical times, it often employed signs or notae and sometimes even non-physical imagined spaces. During the period of migration of barbarian tribes and the transformation of the Roman empire the architectural mnemonic fell into disuse. However the use of tables, charts and signs appears to have continued and developed independently. Mary Carruthers has made it clear that a trained memory occupied a central place in late antique and medieval pedagogy, and has documented some of the ways in which the development of medieval memorial arts was intimately intertwined with the emergence of the book as we understand it today. Examples of the development of the potential inherent in the graphical mnemonic include the lists and combinatory wheels of the Majorcan Ramon Llull. The Art of Signs (Latin ''Ars Notoria'') is also very likely a development of the graphical mnemonic. Yates mentions
Apollonius of Tyana Apollonius of Tyana ( grc, Ἀπολλώνιος ὁ Τυανεύς; c. 3 BC – c. 97 AD) was a Greek Neopythagorean philosopher from the town of Tyana in the Roman province of Cappadocia in Anatolia. He is the subject of ...
and his reputation for memory, as well as the association between trained memory, astrology and divination. She goes on to suggest
It may have been out of this atmosphere that there was formed a tradition which, going underground for centuries and suffering transformations in the process, appeared in the Middle Ages as the ''Ars Notoria'', a magical art of memory attributed to Apollonius or sometimes to Solomon. The practitioner of the ''Ars Notoria'' gazed at figures or diagrams curiously marked and called 'notae' whilst reciting magical prayers. He hoped to gain in this way knowledge, or memory, of all the arts and sciences, a different 'nota' being provided for each discipline. The ''Ars Notoria'' is perhaps a descendant of the classical art of memory, or of that difficult branch of it which used the shorthand ''notae''. It was regarded as a particularly black kind of magic and was severely condemned by Thomas Aquinas.


Textual mnemonic

Carruthers's studies of memory suggest that the images and pictures employed in the medieval arts of memory were not representational in the sense we today understand that term. Rather, images were understood to function "textually", as a type of 'writing', and not as something different from it in kind.Carruthers 1990, p. 222 If such an assessment is correct, it suggests that the use of text to recollect memories was, for medieval practitioners, merely a variant of techniques employing ''notae'', images and other non-textual devices. Carruthers quotes
Pope Gregory I Pope Gregory I ( la, Gregorius I; – 12 March 604), commonly known as Saint Gregory the Great, was the bishop of Rome from 3 September 590 to his death. He is known for instigating the first recorded large-scale mission from Rome, the Gregoria ...
, in support of the idea that 'reading' pictures was considered to be a variation of reading itself.
It is one thing to worship a picture, it is another by means of pictures to learn thoroughly the story that should be venerated. For what writing makes present to those reading, the same picturing makes present to the uneducated, to those perceiving visually, because in it the ignorant see what they ought to follow, in it they read who do not know letters. Wherefore, and especially for the common people, picturing is the equivalent of reading.
Her work makes clear that for medieval readers the act of reading itself had an oral phase in which the text was read aloud or sub-vocalized (silent reading was a less common variant, and appears to have been the exception rather than the rule), then meditated upon and 'digested' hence making it one's own. She asserts that both 'textual' activities (picturing and reading) have as their goal the internalization of knowledge and experience in memory. The use of manuscript illuminations to reinforce the memory of a particular textual passage, the use of visual alphabets such as those in which birds or tools represent letters, the use of illuminated capital letters at the openings of passages, and even the structure of the modern book (itself deriving from scholastic developments) with its index, table of contents and chapters reflect the fact that reading was a memorial practice, and the use of text was simply another technique in the arsenal of practitioners of the arts of memory.


Method of loci

The 'method of loci' (plural of Latin ''locus'' for place or location) is a general designation for mnemonic techniques that rely upon memorized spatial relationships to establish, order and recollect memorial content. The term is most often found in specialized works on
psychology Psychology is the science, scientific study of mind and behavior. Psychology includes the study of consciousness, conscious and Unconscious mind, unconscious phenomena, including feelings and thoughts. It is an academic discipline of immens ...
,
neurobiology Neuroscience is the scientific study of the nervous system (the brain, spinal cord, and peripheral nervous system), its functions and disorders. It is a multidisciplinary science that combines physiology, anatomy, molecular biology, developme ...
and
memory Memory is the faculty of the mind by which data or information is encoded, stored, and retrieved when needed. It is the retention of information over time for the purpose of influencing future action. If past events could not be remember ...
, though it was used in the same general way at least as early as the first half of the nineteenth century in works on Rhetoric, Logic and
Philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. ...
. O'Keefe and Nadel refer to "'the method of loci', an imaginal technique known to the ancient Greeks and Romans and described by Yates (1966) in her book '' The Art of Memory'' as well as by Luria (1969). In this technique the subject memorizes the layout of some building, or the arrangement of shops on a street, or a video game, or any geographical entity which is composed of a number of discrete loci. When desiring to remember a set of items the subject 'walks' through these loci and commits an item to each one by forming an image between the item and any distinguishing feature of that locus. Retrieval of items is achieved by 'walking' through the loci, allowing the latter to activate the desired items. The efficacy of this technique has been well established (Ross and Lawrence 1968, Crovitz 1969, 1971, Briggs, Hawkins and Crovitz 1970, Lea 1975), as is the minimal interference seen with its use." The designation is not used with strict consistency. In some cases it refers broadly to what is otherwise known as the art of memory, the origins of which are related, according to tradition, in the story of Simonides of Ceos: and the collapsing banquet hall discussed above. For example, after relating the story of how Simonides relied on remembered seating arrangements to call to mind the faces of recently deceased guests, Steven M. Kosslyn remarks " is insight led to the development of a technique the Greeks called the method of loci, which is a systematic way of improving one's memory by using imagery." Skoyles and Sagan indicate that "an ancient technique of memorization called Method of Loci, by which memories are referenced directly onto spatial maps" originated with the story of Simonides. Referring to mnemonic methods, Verlee Williams mentions, "One such strategy is the 'loci' method, which was developed by Simonides, a Greek poet of the fifth and sixth centuries BC" Loftus cites the foundation story of Simonides (more or less taken from Frances Yates) and describes some of the most basic aspects of the use of space in the art of memory. She states, "This particular mnemonic technique has come to be called the "method of loci". While place or position certainly figured prominently in ancient mnemonic techniques, no designation equivalent to "method of loci" was used exclusively to refer to mnemonic schemes relying upon space for organization. In other cases the designation is generally consistent, but more specific: "The Method of Loci is a Mnemonic Device involving the creation of a Visual Map of one's house." This term can be misleading: the ancient principles and techniques of the art of memory, hastily glossed in some of the works just cited, depended equally upon images ''and'' places. The designator "method of loci" does not convey the equal weight placed on both elements. Training in the art or arts of memory as a whole, as attested in classical antiquity, was far more inclusive and comprehensive in the treatment of this subject.


See also

* Anamonic * Haraguchi's mnemonic system *
Interference theory The interference theory is a theory regarding human memory. Interference occurs in learning. The notion is that memory encoded in long-term memory (LTM) are forgotten and cannot be retrieved into short-term memory (STM) because either memory could ...
* Linkword * Mnemosyne in Greek mythologie a
Titan Titan most often refers to: * Titan (moon), the largest moon of Saturn * Titans, a race of deities in Greek mythology Titan or Titans may also refer to: Arts and entertainment Fictional entities Fictional locations * Titan in fiction, fictiona ...
ness and 'mother' of the nine Muses; also the river of memory in the
Hades Hades (; grc-gre, ᾍδης, Háidēs; ), in the ancient Greek religion and myth, is the god of the dead and the king of the underworld, with which his name became synonymous. Hades was the eldest son of Cronus and Rhea, although this also ...
* Mnemonist *
Mnemonic link system A mnemonic link system, sometimes also known as a chain method, is a method of remembering lists that is based on creating an association between the elements of that list. For example, when memorizing the list (dog, envelope, thirteen, yarn, window ...
, major system, peg system,
dominic system The Dominic system is a mnemonic system used to remember sequences of digits similar to the mnemonic major system. It was invented and used in competition by eight-time World Memory Champion Dominic O'Brien. Differences from the major system The ...
, and goroawase system *
Memory sport Memory sport, sometimes referred to as competitive memory or the mind sport of memory, refers to competitions in which participants attempt to memorize then recall different forms of information, under certain guidelines. The sport has been formall ...
* Piphilology *
Serial position effect Serial-position effect is the tendency of a person to recall the first and last items in a series best, and the middle items worst. The term was coined by Hermann Ebbinghaus through studies he performed on himself, and refers to the finding that re ...
* Spacing effect *
The Magical Number Seven, Plus or Minus Two "The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information" is one of the most highly cited papers in psychology. It was written by the cognitive psychologist George A. Miller of Harvard University's D ...
* Zeigarnik effect


Practitioners & exponents

Institutional: *
Lodge Mother Kilwinning Lodge Mother Kilwinning is a Masonic Lodge in Kilwinning, Scotland, under the auspices of the Grand Lodge of Scotland. It is number 0 (referred to as "nothing" and not zero) on the Roll, and is reputed to be the oldest Lodge not only in Scotlan ...
Second Schaw Statutes
, 1599
Individual: *
St. Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known ...
*
Giulio Camillo Giulio "Delminio" Camillo (ca. 1480–1544) was an Italian philosopher. He is best known for his ''Theatre of Memory'', described in his posthumously published work ''L’Idea del Theatro''. Biography Camillo was born around 1480 in Friuli, now ...
*
Thomas Bradwardine Thomas Bradwardine (c. 1300 – 26 August 1349) was an English cleric, scholar, mathematician, physicist, courtier and, very briefly, Archbishop of Canterbury. As a celebrated scholastic philosopher and doctor of theology, he is often ca ...
*
Giordano Bruno Giordano Bruno (; ; la, Iordanus Brunus Nolanus; born Filippo Bruno, January or February 1548 – 17 February 1600) was an Italian philosopher, mathematician, poet, cosmological theorist, and Hermetic occultist. He is known for his cosmolog ...
*
Robert Fludd Robert Fludd, also known as Robertus de Fluctibus (17 January 1574 – 8 September 1637), was a prominent English Paracelsian physician with both scientific and occult interests. He is remembered as an astrologer, mathematician, cosmologis ...
* Giovanni Fontana * William Fowler *
Hugh of St. Victor Hugh of Saint Victor ( 1096 – 11 February 1141), was a Saxon canon regular and a leading theologian and writer on mystical theology. Life As with many medieval figures, little is known about Hugh's early life. He was probably born in the 1090s ...
* Johannes Romberch * William Schaw * World Memory Championships participants, an annual mental sports event since 1990.


Notes


References

* * *
limited preview
on
Google Books Google Books (previously known as Google Book Search, Google Print, and by its code-name Project Ocean) is a service from Google Inc. that searches the full text of books and magazines that Google has scanned, converted to text using optical ...
) * * * * * * * * *


External links


TED talk: Joshua Foer on feats of memory anyone can do
{{Authority control Mnemonics Dialectic Rhetoric Exceptional memory da:Hukommelseskunst io:Memorigiva arto