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ERIC Number: EJ913151
Record Type: Journal
Publication Date: 2011-Mar
Pages: 6
Abstractor: As Provided
ISSN: ISSN-0278-2626
ERP Evidence of Visualization at Early Stages of Visual Processing
Page, Jonathan W.; Duhamel, Paul; Crognale, Michael A.
Brain and Cognition, v75 n2 p141-146 Mar 2011
Recent neuroimaging research suggests that early visual processing circuits are activated similarly during visualization and perception but have not demonstrated that the cortical activity is similar in character. We found functional equivalency in cortical activity by recording evoked potentials while color and luminance patterns were viewed and while they were visualized with the eyes closed. Cortical responses were found to be different when imagining a color pattern vs. imagining a checkerboard luminance pattern, but the same when imagining a color pattern (or checkerboard pattern) vs. seeing the same pattern. This suggests that early visual processing stages may play a dynamic role in internal image generation, and further implies that visual imagery may modulate perception. (Contains 4 figures and 1 table.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A