Journal
CEREBRAL CORTEX
Volume 27, Issue 1, Pages 330-343Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhw412
Keywords
egomotion; heading; monkey fMRI; optic flow; vision
Categories
Funding
- CNRS
- ANR [ANR-13-JSV4-0007-01, ANR-12-BSV40005]
- European Council [PIIF-GA-2011-298386]
Ask authors/readers for more resources
The cortical network that processes visual cues to self-motion was characterized with functional magnetic resonance imaging in 3 awake behaving macaques. The experimental protocol was similar to previous human studies in which the responses to a single large optic flow patch were contrasted with responses to an array of 9 similar flow patches. This distinguishes cortical regions where neurons respond to flow in their receptive fields regardless of surrounding motion from those that are sensitive to whether the overall image arises from self-motion. In all 3 animals, significant selectivity for egomotion-consistent flow was found in several areas previously associated with optic flow processing, and notably dorsal middle superior temporal area, ventral intra-parietal area, and VPS. It was also seen in areas 7a (Opt), STPm, FEFsem, FEFsac and in a region of the cingulate sulcus that may be homologous with human area CSv. Selectivity for egomotion-compatible flow was never total but was particularly strong in VPS and putative macaque CSv. Direct comparison of results with the equivalent human studies reveals several commonalities but also some differences.
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