A common neural substrate for perceiving and knowing about color.

A common neural substrate for perceiving and knowing about color. Research Abstract Details 

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A common neural substrate for perceiving and knowing about color. Abstract Text:

W Kyle Simmons,Vimal Ramjee,Michael S Beauchamp,Ken McRae,Alex Martin,Lawrence W Barsalou,

Functional neuroimaging research has demonstrated that retrieving information about object-associated colors activates the left fusiform gyrus in posterior temporal cortex. Although regions near the fusiform have previously been implicated in color perception, it remains unclear whether color knowledge retrieval actually activates the color perception system. Evidence to this effect would be particularly strong if color perception cortex was activated by color knowledge retrieval triggered strictly with linguistic stimuli. To address this question, subjects performed two tasks while undergoing fMRI. First, subjects performed a property verification task using only words to assess conceptual knowledge. On each trial, subjects verified whether a named color or motor property was true of a named object (e.g., TAXI-yellow, HAIR-combed). Next, subjects performed a color perception task. A region of the left fusiform gyrus that was highly responsive during color perception also showed greater activity for retrieving color than motor property knowledge. These data provide the first evidence for a direct overlap in the neural bases of color perception and stored information about object-associated color, and they significantly add to accumulating evidence that conceptual knowledge is grounded in the brain's modality-specific systems.

A common neural substrate for perceiving and knowing about color. Publishing Authors By Initials

WK Simmons,V Ramjee,MS Beauchamp,K McRae,A Martin,LW Barsalou,

For similar psychological phenomena and processes: psychomotor performance research abstracts see: psychological phenomena and processes: psychomotor performance research

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A common neural substrate for perceiving and knowing about color. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Neuropsychologia

VOLUME: 45

Page Numbers: 2802-10

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ISSN: 0028-3932

DAY: 17

MONTH: 05

YEAR: 2007

A common neural substrate for perceiving and knowing about color. Information

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LANGUAGE: eng

NlmUniqueID: 20713

A common neural substrate for perceiving and knowing about color. Keywords Mesh Terms:

KEYWORDS: Psychomotor Performance

MESH TERMS: physiology

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Grant and Affiliation Information for A common neural substrate for perceiving and knowing about color.

AFFILIATION: Department of Psychology, Emory University, USA. simmonswkyle@mail.nih.gov

Country: England

AGENCY: United States NIMH

GRANT: 1F31MH070152-01

ACRONYM: MH

MEDLINETA: Neuropsychologia

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