Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 105, Issue 11, Pages 4399-4404Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0708418105
Keywords
vision; EEG; beta oscillations; hippocampus; perceptual closure
Categories
Funding
- NIMH NIH HHS [R03 MH079036, R03 MH79036, R01 MH065350, R01 MH049334, R01 MH65350, R37 MH049334, MH49334] Funding Source: Medline
- NINDS NIH HHS [NS49482, R01 NS044421, NS44421, R56 NS044421, R01 NS049482] Funding Source: Medline
Ask authors/readers for more resources
Visual object-recognition is thought to involve activation of a distributed network of cortical regions, nodes of which include the lateral prefrontal cortex, the so-called lateral occipital complex (LOC), and the hippocampal formation. It has been proposed that long-range oscillatory synchronization is a major mode of coordinating such a distributed network. Here, intracranial recordings were made from three humans as they performed a challenging visual object-recognition task that required them to identify barely recognizable fragmented line-drawings of common objects. Subdural electrodes were placed over the prefrontal cortex and LOC, and depth electrodes were placed within the hippocampal formation. Robust beta-band coherence was evident in all subjects during processing of recognizable fragmented images. Significantly lower coherence was evident during processing of unrecognizable scrambled versions of the same. The results indicate that transient beta-band oscillatory coupling between these three distributed cortical regions may reflect a mechanism for effective communication during visual object processing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available