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- Bernard J. Baars (1998). Metaphors of Consciousness and Attention in the Brain. Trends in Neurosciences 21:58-62.
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In the beginning: introduction -- This I believe: preview -- This they believe: other views -- Where it begins: anatomy and environment -- Where it began: evolution -- What is it?: consciousness -- There was the word: self-consciousness and language -- See here: attention -- Perhaps to dream: sleep -- x=2y: representation -- The dance of life: movement -- They all fall down: dissolution of function -- Been there, done that: experience -- Which have eyes and see not: stimulus hierarchy -- Buy one, get one free: volition -- Play it again: speculative reprise -- In the end: conclusion.
A response to Christof Koch and Naotsugu Tsuchiya's 'Attention and Consciousness: Two Distinct Brain Processes'.
According to commonsense psychology, one is conscious of everything that one pays attention to, but one does not pay attention to all the things that one is conscious of. Recent lines of research purport to show that commonsense is mistaken on both of these points: Mack and Rock (1998) tell us that attention is necessary for consciousness, while Kentridge and Heywood (2001) claim that consciousness is not necessary for attention. If these lines of research were successful they would have important implications regarding the prospects of using attention research to inform us about consciousness. The present essay shows that these lines of research are not successful, and that the commonsense picture of the relationship between attention and consciousness can be.
The subject of consciousness, long shunned by mainstream psychology and the scientific community, has over the last two decades become a legitimate topic of scientific research. One of the most thorough attempts to formulate a theory of consciousness has come from Bernard Baars, a psychologist working at the Wright Institute. Baars proposes that consciousness is the result of a Global Workspace in the brain that distributes information to the huge number of parallel unconscious processors that form the rest of the brain. This paper critiques the central hypothesis of Baars' theory of consciousness.
Scientific concepts are defined by metaphors. These metaphors determine what atten- tion is and what count as adequate explanations of the phenomenon. The authors analyze these metaphors within 3 types of attention theories: (a) --cause-- theories, in which attention is presumed to modulate information processing (e.g., attention as a spotlight; attention as a limited resource); (b) --effect-- theories, in which attention is considered to be a by-product of information processing (e.g., the competition meta- phor); and (c) hybrid theories that combine cause and effect aspects (e.g., biased- competition models). The present analysis reveals the crucial role of metaphors in cognitive psychology, neuroscience, and the efforts of scientists to find a resolution to the classic problem of cause versus effect interpretations.
Metaphors of the mind abound. The mind has been metaphorically described as an aviary, a telephone switchboard, a ghost in a machine, and a computer - to name but a few. Bernard Baars, in his In the theater of consciousness, adds to this venerable list, arguing that the mind can be instructively thought of as a working theater. Baars argues for the aptness of his theater metaphor by showing how it can be used to tell "a unified story" of all the currently available scientific data on consciousness. This paper argues that Baars' theater metaphor is not entirely apt, that once it is unpacked, it suggests a certain relation between consciousness and attention that does not appear to be supported by the currently available data.
Scientific concepts are defined by metaphors. These metaphors determine what attention is and what count as adequate explanations of the phenomenon. The authors analyze these metaphors within 3 types of attention theories: (a) “cause” theories, in which attention is presumed to modulate information processing (e.g., attention as a spotlight; attention as a limited resource); (b) “effect” theories, in which attention is considered to be a by-product of information processing (e.g., the competition metaphor); and (c) hybrid theories that combine cause and effect aspects (e.g., biasedcompetition models). The present analysis reveals the crucial role of metaphors in cognitive psychology, neuroscience, and the efforts of scientists to find a resolution to the classic problem of cause versus effect interpretations.
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