ACTIVATION OF BASIC CORTICAL AREAS IN HUMANS DURING SELECTION OF SIMPLE AND COMPLEX FRAGMENTED VISUAL STIMULUS: ANALYSIS OF EVENT-RELATED POTENTIALS
Visual search and identification of complex fragmented visual stimulus goes with the decrease of P3 component amplitude. Concentration of attention and identification of simple and complex fragmented images is accompanied by late positive complex (LPC) and N300 component. These data suggest that appearance of late positive complex may have connection to the late identification mechanisms and to the processes of categorization of fragmented stimuli; and N300 component plays the leading part in identification of complex fragmented visual stimuli, and serves as a neurophysiological marker of object selection.
Keywords: visual search, fragmentation, event-related potentials, P3 component, late positive complex, selection, frontal areas
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Issue: 11, 2009
Series of issue: Issue 11
Rubric: Biology
Pages: 217 — 223
Downloads: 1638