Comparing segmentation by time and by motion in visual search: an FMRI investigation.

Journal article

Brain activity was recorded while participants engaged in a difficult visual search task for a target defined by the spatial configuration of its component elements. The search displays were segmented by time (a preview then a search display), by motion, or were unsegmented. A preparatory network showed activity to the preview display, in the time but not in the motion segmentation condition. A region of the precuneus showed (i) higher activation when displays were segmented by time or by mot...

Expand abstract

Authors: Dent, K; Allen, H; Humphreys, G

• Publication status: Published
• Journal: Journal of cognitive neuroscience
• Volume: 23
• Issue: 7
• Pages: 1710-1722
• Publication date: 2011-07-01
• DOI: 10.1162/jocn.2010.21531
• EISSN: 1530-8898
• ISSN: 0898-929X
• Language: English
• Keywords: Visual Cortex; Humans; Motion Perception; Gyrus Cinguli; Space Perception; Time Perception; Cerebral Cortex; Parietal Lobe; Mental Processes; Magnetic Resonance Imaging; Cues; Photic Stimulation