|
Attention Schema Theory
The attention schema theory (AST) of consciousness (or subjective awareness) is a theory of consciousness which was developed by neuroscientist Michael Graziano at Princeton University. It proposes that brains construct subjective awareness as a schematic model of the process of attention. The theory is a materialist theory of consciousness. It shares similarities with the illusionist ideas of philosophers like Daniel Dennett, Patricia Churchland, and Keith Frankish. Graziano proposed that an attention schema is like the body schema. Just like the brain constructs a simplified model of the body to help monitor and control movements of the body, so the brain constructs a simplified model of attention to help monitor and control attention. The information in that model, portraying an imperfect and simplified version of attention, leads the brain to conclude that it has a non-physical essence of awareness. The construct of subjective awareness is the brain's efficient but imper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consciousness
Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scientists. Opinions differ about what exactly needs to be studied or even considered consciousness. In some explanations, it is synonymous with the mind, and at other times, an aspect of mind. In the past, it was one's "inner life", the world of introspection, of private thought, imagination and volition. Today, it often includes any kind of cognition, experience, feeling or perception. It may be awareness, awareness of awareness, or self-awareness either continuously changing or not. The disparate range of research, notions and speculations raises a curiosity about whether the right questions are being asked. Examples of the range of descriptions, definitions or explanations are: simple wakefulness, one's sense of selfhood or sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Awareness
Awareness is the state of being conscious of something. More specifically, it is the ability to directly know and perceive, to feel, or to be cognizant of events. Another definition describes it as a state wherein a subject is aware of some information when that information is directly available to bring to bear in the direction of a wide range of behavioral actions. The concept is often synonymous to consciousness and is also understood as being consciousness itself. The states of awareness are also associated with the states of experience so that the structure represented in awareness is mirrored in the structure of experience. Concept Awareness is a relative concept. It may be focused on an internal state, such as a visceral feeling, or on external events by way of sensory perception. It is analogous to sensing something, a process distinguished from observing and perceiving (which involves a basic process of acquainting with the items we perceive). Awareness or "to sense" can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Graziano
Michael Steven Anthony Graziano (born May 22, 1967) is an American scientist and novelist who is currently a professor of Psychology and Neuroscience at Princeton University. His scientific research focuses on the brain basis of awareness. He has proposed the "attention schema" theory, an explanation of how, and for what adaptive advantage, brains attribute the property of awareness to themselves. His previous work focused on how the |
Princeton University
Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution. It is one of the highest-ranked universities in the world. The institution moved to Newark, New Jersey, Newark in 1747, and then to the current site nine years later. It officially became a university in 1896 and was subsequently renamed Princeton University. It is a member of the Ivy League. The university is governed by the Trustees of Princeton University and has an endowment of $37.7 billion, the largest List of colleges and universities in the United States by endowment, endowment per student in the United States. Princeton provides undergraduate education, undergraduate and graduate education, graduate in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brain
A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body. In a human, the cerebral cortex contains approximately 14–16 billion neurons, and the estimated number of neurons in the cerebellum is 55–70 billion. Each neuron is connected by synapses to several thousand other neurons. These neurons typically communicate with one another by means of long fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells. Physiologically, brains exert centralized control over a body's other organs. They act on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. This centralized control allows rapid and coordinated respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attention
Attention is the behavioral and cognitive process of selectively concentrating on a discrete aspect of information, whether considered subjective or objective, while ignoring other perceivable information. William James (1890) wrote that "Attention is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or trains of thought. Focalization, concentration, of consciousness are of its essence." Attention has also been described as the allocation of limited cognitive processing resources. Attention is manifested by an attentional bottleneck, in terms of the amount of data the brain can process each second; for example, in human vision, only less than 1% of the visual input data (at around one megabyte per second) can enter the bottleneck, leading to inattentional blindness. Attention remains a crucial area of investigation within education, psychology, neuroscience, cognitive neuroscience, and neuropsychology. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materialist
Materialism is a form of philosophical monism which holds matter to be the fundamental substance in nature, and all things, including mental states and consciousness, are results of material interactions. According to philosophical materialism, mind and consciousness are by-products or epiphenomena of material processes (such as the biochemistry of the human brain and nervous system), without which they cannot exist. This concept directly contrasts with idealism, where mind and consciousness are first-order realities to which matter is dependent while material interactions are secondary. Materialism is closely related to physicalism—the view that all that exists is ultimately physical. Philosophical physicalism has evolved from materialism with the theories of the physical sciences to incorporate more sophisticated notions of physicality than mere ordinary matter (e.g. spacetime, physical energies and forces, and dark matter). Thus, the term ''physicalism'' is preferred ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illusionism (consciousness)
Eliminative materialism (also called eliminativism) is a materialism, materialist position in the philosophy of mind. It is the idea that majority of the mental states in folk psychology do not exist. Some supporters of eliminativism argue that no coherent Neural correlate, neural basis will be found for many everyday psychological concepts such as belief or Desire (emotion), desire, since they are poorly defined. The argument is that psychological concepts of behaviour and experience should be judged by how well they reduce to the biological level.Lycan, W. G. & Pappas, G. (1972) "What is eliminative materialism?" ''Australasian Journal of Philosophy'' 50: 149-59. Other versions logical consequence, entail the non-existence of conscious mental states such as pain and visual perceptions.Rey, G. (1983). "A Reason for Doubting the Existence of Consciousness", in R. Davidson, G. Schwartz and D. Shapiro (eds.), ''Consciousness and Self-Regulation Vol 3''. New York, Plenum: 1-39. El ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daniel Dennett
Daniel Clement Dennett III (born March 28, 1942) is an American philosopher, writer, and cognitive scientist whose research centers on the philosophy of mind, philosophy of science, and philosophy of biology, particularly as those fields relate to evolutionary biology and cognitive science. , he is the co-director of the Center for Cognitive Studies and the Austin B. Fletcher Professor of Philosophy at Tufts University in Massachusetts. Dennett is a member of the editorial board for ''The Rutherford Journal'' and a co-founder of The Clergy Project. A vocal atheist and secularist, Dennett is referred to as one of the "Four Horsemen of New Atheism", along with Richard Dawkins, Sam Harris, and the late Christopher Hitchens. Early life, education, and career Daniel Clement Dennett III was born on March 28, 1942, in Boston, Massachusetts, the son of Ruth Marjorie (née Leck; 1903–1971) and Daniel Clement Dennett Jr. (1910–1947). Dennett spent part of his childhood in Le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patricia Churchland
Patricia Smith Churchland (born 16 July 1943) is a Canadian-American analytic philosopher noted for her contributions to neurophilosophy and the philosophy of mind. She is UC President's Professor of Philosophy Emerita at the University of California, San Diego (UCSD), where she has taught since 1984. She has also held an adjunct professorship at the Salk Institute for Biological Studies since 1989. She is a member of the Board of Trustees Moscow Center for Consciousness Studies of Philosophy Department, Moscow State University. In 2015, she was elected a Fellow of the American Academy of Arts & Sciences. Educated at the University of British Columbia, the University of Pittsburgh, and Somerville College, Oxford, she taught philosophy at the University of Manitoba from 1969 to 1984 and is married to the philosopher Paul Churchland. Larissa MacFarquhar, writing for ''The New Yorker,'' observed of the philosophical couple that: "Their work is so similar that they are sometimes disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keith Frankish
Keith Frankish is a British philosopher specializing in philosophy of mind, philosophy of psychology, and philosophy of cognitive science. He is an Honorary Reader at the University of Sheffield, UK, Visiting Research Fellow with The Open University, and adjunct Professor with the Brain and Mind Programme at the University of Crete. He is known for his "illusionist" stance in the theory of consciousness. He holds that the conscious mind is a virtual system, a trick of the biological mind. In other words, phenomenality is an introspective illusion. This position is in opposition to dualist theories, reductive realist theories, and panpsychism. Biography Early life and education Born and raised near Doncaster in South Yorkshire, England, Frankish says he spent many hours alone reading due to childhood illness. His heroes were the cricketer Geoff Boycott, the fictional aviator Biggles, and the zoologist and humorous author Gerald Durrell. His undergraduate work was done at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Schema
Body schema is a concept used in several disciplines, including psychology, neuroscience, philosophy, sports medicine, and robotics. The neurologist Sir Henry Head originally defined it as a postural model of the body that actively organizes and modifies 'the impressions produced by incoming sensory impulses in such a way that the final sensation of body position, or of locality, rises into consciousness charged with a relation to something that has happened before'. As a postural model that keeps track of limb position, it plays an important role in control of action. It involves aspects of both central (brain processes) and peripheral ( sensory, proprioceptive) systems. Thus, a body schema can be considered the collection of processes that registers the posture of one's body parts in space. The schema is updated during body movement. This is typically a non-conscious process, and is used primarily for spatial organization of action. It is therefore a pragmatic representation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
