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YERKISH is an artificial language developed for use by non-human primates . It employs a keyboard whose keys contain lexigrams, symbols corresponding to objects or ideas.

A LEXIGRAM represents a word but is not necessarily indicative of the object to which it refers. Lexigrams were notably used by the Georgia State University Language
Language
Research Center to communicate with bonobos and chimpanzees . Researchers and primates were able to communicate using lexigram boards made in up to three panels with a total of 384 keys.

CONTENTS

* 1 History * 2 See also * 3 Notes * 4 References

HISTORY

Lexigram representing Sue Savage-Rumbaugh , a developer of the language

The language was developed by Ernst von Glasersfeld
Ernst von Glasersfeld
and used by Duane Rumbaugh and Sue Savage-Rumbaugh of Georgia State University
Georgia State University
while working with primates at the Yerkes National Primate
Primate
Research Center of Emory University
Emory University
in Atlanta, Georgia
Atlanta, Georgia
. Primates were taught to communicate by means of a lexigram board, a computerized array of keys labeled with lexigrams. Von Glasersfeld coined the term "lexigram" in 1971, created the first 120 of them, and designed the grammar that regulated their combination. This artificial language was called Yerkish in honor of Robert M. Yerkes , the founder of the laboratory within which the lexigrams were first used.

The first ape trained to communicate in Yerkish was the chimpanzee Lana , beginning in 1973 within the context of the LANA project.

SEE ALSO

* Primate
Primate
cognition * Kanzi * Panbanisha
Panbanisha
* Great Ape Trust * Great ape language
Great ape language

NOTES

* ^ A B Interactive Lexigram, History of Ape Language, Great Ape Trust , 2010. Archived May 20, 2010, at the Wayback Machine
Wayback Machine
. * ^ Jeffrey Kluger, "Inside the Minds of Animals", Time , August 5, 2010.

REFERENCES

* Rumbaugh, D. M. ed. (1977) Language
Language
Learning by a Chimpanzee. The LANA Project. New York, Academic Press * von Glasersfeld, E., Department of Psychology, University of Georgia. The Yerkish language for Non- Human
Human
Primates. American Journal of Computational Linguistics, 1974, 1.

* v * t * e

Great ape language
Great ape language

Languages taught to non-human apes

* American Sign Language
Language
* Yerkish

Non-human apes taught simple languages

BONOBOS

* Kanzi * Nyota * Panbanisha
Panbanisha

CHIMPANZEES

* Lana * Loulis * Lucy * Nim Chimpsky
Nim Chimpsky
* Sarah * Viki * Washoe

GORILLAS

* Koko * Michael

ORANGUTANS

* Azy * Chantek

RESEARCHERS

* Francine Patterson * Sue Savage-Rumbaugh * Maurice K. Temerlin
Maurice K. Temerlin
* Roger Fouts
Roger Fouts
* Tetsuro Matsuzawa * William M. Fields

RESEARCH CENTERS

* Chimpanzee
Chimpanzee
and Human
Human
Communication Institute * Elgin Center * Iowa Primate
Primate
Learning Sanctuary * The Gorilla
Gorilla
Foundation

MEDIA

* Koko: A Talking Gorilla
Gorilla
(1978 film) * The Mind of an Ape (1983 book) * Next of Kin (1997 book) * Project Nim (2011 film)

SEE ALSO

* Animal language * Animal communication
Animal communication
* Primate
Primate
cognition * Animal cognition
Animal cognition
* Human–animal communication

* v * t * e

Types of writing systems

OVERVIEW

* History of writing
History of writing
* Grapheme
Grapheme

LISTS

* Writing systems

* undeciphered * inventors * constructed

* Languages by writing system / by first written accounts

TYPES

ABJADS

* Numerals

* Aramaic

* Hatran

* Arabic * Pitman shorthand
Pitman shorthand

* Hebrew

* Ashuri * Cursive * Rashi * Solitreo

* Tifinagh
Tifinagh
* Manichaean * Nabataean * Old North Arabian * Pahlavi * Pegon

* Phoenician

* Paleo-Hebrew

* Proto-Sinaitic * Psalter * Punic * Samaritan

* South Arabian

* Zabur * Musnad

* Sogdian

* Syriac

* ʾEsṭrangēlā * Serṭā * Maḏnḥāyā

* Teeline Shorthand
Teeline Shorthand
* Ugaritic

ABUGIDAS

BRAHMIC

NORTHERN

* Asamiya (Ôxômiya) * Bānglā * Bhaikshuki * Bhujinmol * Brāhmī * Devanāgarī * Dogri * Gujarati * Gupta * Gurmukhī * Kaithi * Kalinga * Khojki * Khotanese * Khudawadi * Laṇḍā * Lepcha * Limbu * Mahajani
Mahajani
* Meitei Mayek * Modi * Multani * Nāgarī * Nandinagari
Nandinagari
* Odia * \'Phags-pa * Newar * Ranjana * Sharada * Saurashtra * Siddhaṃ * Soyombo * Sylheti Nagari
Sylheti Nagari
* Takri

* Tibetan

* Uchen * Umê

* Tirhuta
Tirhuta
* Tocharian * Zanabazar Square

* Zhang-Zhung

* Drusha * Marchen * Marchung * Pungs-chen * Pungs-chung

SOUTHERN

* Ahom * Balinese * Batak * Baybayin
Baybayin
* Bhattiprolu * Buhid * Burmese * Chakma * Cham * Grantha * Goykanadi * Hanunó\'o * Javanese * Kadamba * Kannada * Kawi * Khmer * Kulitan * Lanna * Lao * Leke * Lontara * Malayalam

* Maldivian

* Dhives Akuru
Dhives Akuru
* Eveyla Akuru * Thaana
Thaana

* Mon * Old Makassarese * Old Sundanese * Pallava * Pyu * Rejang * Rencong * Sinhala * Sundanese * Tagbanwa * Tai Le * Tai Tham * Tai Viet * Tamil * Telugu * Thai * Tigalari

* Vatteluttu

* Kolezhuthu * Malayanma

* Visayan

OTHERS

* Boyd\'s syllabic shorthand

* Canadian syllabics

* Blackfoot * Déné syllabics

* Fox I * Ge\'ez * Gunjala Gondi * Japanese Braille
Japanese Braille
* Jenticha * Kayah Li * Kharosthi
Kharosthi
* Mandombe * Masaram Gondi * Meroitic * Miao * Mwangwego * Sorang Sompeng * Pahawh Hmong
Pahawh Hmong
* Thomas Natural Shorthand
Thomas Natural Shorthand

ALPHABETS

LINEAR

* Abkhaz * Adlam * Armenian * Avestan * Avoiuli * Bassa Vah * Borama * Carian * Caucasian Albanian * Coorgi–Cox alphabet * Coptic * Cyrillic * Deseret

* Duployan shorthand

* Chinook writing

* Early Cyrillic * Eclectic shorthand * Elbasan * Etruscan * Evenki * Fox II * Fraser * Gabelsberger shorthand
Gabelsberger shorthand
* Garay

* Georgian

* Asomtavruli
Asomtavruli
* Nuskhuri
Nuskhuri
* Mkhedruli
Mkhedruli

* Glagolitic * Gothic * Gregg shorthand * Greek * Greco-Iberian alphabet
Greco-Iberian alphabet
* Hangul
Hangul
* Hanifi * IPA * Kaddare

* Latin

* Beneventan * Blackletter
Blackletter
* Carolingian minuscule * Fraktur
Fraktur
* Gaelic * Insular * Kurrent
Kurrent
* Merovingian * Sigla * Sütterlin * Tironian notes
Tironian notes
* Visigothic

* Luo * Lycian * Lydian * Manchu * Mandaic * Medefaidrin * Molodtsov * Mongolian * Mru * Neo- Tifinagh
Tifinagh
* New Tai Lue * N\'Ko * Ogham
Ogham
* Oirat * Ol Chiki * Old Hungarian * Old Italic * Old Permic * Orkhon * Old Uyghur * Osage * Osmanya * Pau Cin Hau

* Runic

* Anglo-Saxon * Cipher * Dalecarlian * Elder Futhark
Elder Futhark
* Younger Futhark
Younger Futhark
* Gothic * Marcomannic * Medieval * Staveless

* Sidetic * Shavian * Somali * Tifinagh
Tifinagh
* Vagindra * Visible Speech
Visible Speech
* Vithkuqi * Wancho * Zaghawa

NON-LINEAR

* Braille
Braille
* Maritime flags * Morse code
Morse code
* New York Point
New York Point
* Semaphore line * Flag semaphore * Moon type

IDEOGRAMS /PICTOGRAMS

* Adinkra * Aztec * Blissymbol * Dongba * Ersu Shaba * Emoji
Emoji
* IConji * Isotype * Kaidā * Míkmaq * Mixtec * New Epoch Notation Painting
New Epoch Notation Painting
* Nsibidi
Nsibidi
* Ojibwe Hieroglyphs * Siglas poveiras * Testerian * Yerkish * Zapotec

LOGOGRAMS

CHINESE FAMILY OF SCRIPTS

CHINESE CHARACTERS

* Simplified * Traditional * Oracle bone script
Oracle bone script
* Bronze Script

* Seal Script

* large * small * bird-worm

* Hanja
Hanja
* Idu * Kanji
Kanji
* Chữ nôm * Zhuang

CHINESE-INFLUENCED

* Jurchen * Khitan large script * Sui * Tangut

CUNEIFORM

* Akkadian * Assyrian * Elamite * Hittite * Luwian * Sumerian

OTHER LOGO-SYLLABIC

* Anatolian * Bagam * Cretan * Isthmian * Maya * Proto-Elamite * Yi (Classical)

LOGO-CONSONANTAL

* Demotic * Hieratic
Hieratic
* Hieroglyphs

NUMERALS

* Hindu-Arabic * Abjad
Abjad
* Attic (Greek) * Muisca * Roman

SEMI-SYLLABARIES

FULL

* Celtiberian * Northeastern Iberian * Southeastern Iberian * Khom

REDUNDANT

* Espanca * Pahawh Hmong
Pahawh Hmong
* Khitan small script * Southwest Paleohispanic * Zhuyin fuhao

SOMACHEIROGRAMS

* ASLwrite * SignWriting
SignWriting
* si5s * Stokoe Notation

SYLLABARIES

* Afaka * Bamum * Bété * Byblos * Cherokee * Cypriot * Cypro-Minoan * Ditema tsa Dinoko * Eskayan * Geba * Great Lakes Algonquian syllabics * Iban

* Japanese

* Hiragana
Hiragana
* Katakana
Katakana
* Man\'yōgana * Hentaigana * Sogana
Sogana
* Jindai moji
Jindai moji

* Kikakui * Kpelle * Linear B
Linear B
* Linear Elamite
Linear Elamite
* Lisu * Loma * Nüshu * Nwagu Aneke script * Old Persian Cuneiform
Cuneiform
* Vai * Woleai * Yi (Modern) * Yugtun

* v * t * e

Braille
Braille
⠃⠗⠁⠊⠇⠇⠑

BRAILLE CELL

* 1829 braille * International uniformity * ASCII braille * Unicode braille patterns

BRAILLE SCRIPTS

French-ordered scripts (see for more)

* Albanian * Amharic * Arabic * Armenian * Azerbaijani * Belarusian

* Bharati

* Devanagari
Devanagari
(Hindi / Marathi / Nepali) * Bengali * Punjabi * Sinhalese * Tamil * Urdu * etc.

* Bulgarian * Burmese * Cambodian * Cantonese * Catalan * Chinese (Mandarin, mainland) * Czech * Dutch * Dzongkha (Bhutanese) * English (Unified English ) * Esperanto * Estonian * Faroese * French * Georgian * German * Ghanaian * Greek * Guarani * Hawaiian * Hebrew * Hungarian * Icelandic * Inuktitut (reassigned vowels) * Iñupiaq * IPA * Irish * Italian * Kazakh * Kyrgyz * Latvian * Lithuanian * Maltese * Mongolian * Māori * Nigerian * Northern Sami * Persian * Philippine * Polish * Portuguese * Romanian * Russian * Samoan * Scandinavian * Slovak * South African * Spanish * Tatar * Taiwanese Mandarin (largely reassigned) * Thai border-left-width:2px;border-left-style:solid;width:100%;padding:0px">

* Algerian Braille
Braille
(obsolete)

FREQUENCY-BASED SCRIPTS

* American Braille
Braille
(obsolete)

INDEPENDENT SCRIPTS

* Japanese * Korean * Two-Cell Chinese

EIGHT-DOT SCRIPTS

* Luxembourgish * Kanji
Kanji
* Gardner–Salinas braille codes (GS8)

SYMBOLS IN BRAILLE

* Braille
Braille
music * Canadian currency marks * Computer Braille
Braille
Code * Gardner–Salinas braille codes (GS8/GS6) * International Phonetic Alphabet
Alphabet
(IPA) * Nemeth braille code

BRAILLE TECHNOLOGY

* Braille
Braille
e-book * Braille
Braille
embosser * Braille
Braille
translator * Braille
Braille
watch * Mountbatten Brailler
Mountbatten Brailler
* Optical braille recognition
Optical braille recognition
* Perforation * Perkins Brailler * Refreshable braille display
Refreshable braille display
* Slate and stylus * Braigo
Braigo

PERSONS

* Louis Braille
Braille
* Charles Barbier * Valentin Haüy * Thakur Vishva Narain Singh * Sabriye Tenberken * William Bell Wait
William Bell Wait

ORGANISATIONS

* Brail