UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Frontoparietal Activation Distinguishes Face and Space from Artifact Concepts

Chen, CH; Zeki, S; (2011) Frontoparietal Activation Distinguishes Face and Space from Artifact Concepts. J COGNITIVE NEUROSCI , 23 (9) 2558 - 2568.

Full text not available from this repository.

Abstract

Empirical and theoretical studies suggest that human knowledge is partly based on innate concepts that are experience-independent. We can, therefore, consider concepts underlying our knowledge as being broadly divided into inherited and acquired ones. Using fMRI, we studied the brain reaction in 20 subjects to violation of face, space (inherited), and artifact (acquired) concepts by presenting them with deformed faces, impossible figures (i.e., impossible chairs), and deformed planes, respectively, as well as their normal counterparts. Violation of the inherited concepts of face and space led to significant activation in frontoparietal cortex, whereas artifacts did not, thus distinguishing neurologically between the two categories. Participants were further exposed to these deformities daily for 1 month to test the supposition that inherited concepts are not modifiable, hence that prolonged exposure would not change the brain circuits that are engaged when viewing them. Consistent with this supposition, our results showed no significant change in activation for both categories, suggesting that such concepts are stable at the neural level at least within a time frame of 1 month. Finally, we investigated the regions of the brain that are critical for object representation. Our results show distinct and overlapping areas in the ventral visual cortex for all three categories, with faces activating the ventral visual cortex inferiorly, especially centered on right fusiform gyrus, and chairs and planes activating more diffuse regions, overlapping with the superior part of face region and mainly located in middle occipital cortex and parietal areas.

Type: Article
Title: Frontoparietal Activation Distinguishes Face and Space from Artifact Concepts
Keywords: HUMAN EXTRASTRIATE CORTEX, TEMPORAL CORTEX, PARIETAL CORTEX, VISUAL CATEGORIZATION, HUMAN BRAIN, 1.5 T, PERCEPTION, REPRESENTATION, INFORMATION, NEWBORNS
UCL classification: UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > School of Life and Medical Sciences > Faculty of Life Sciences > Biosciences (Division of) > Cell and Developmental Biology
URI: http://discovery.ucl.ac.uk/id/eprint/1319014
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item