Journal
CEREBRAL CORTEX
Volume 22, Issue 1, Pages 201-208Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhr115
Keywords
cortex; extrastriate; object motion; optic flow; visual motion
Categories
Funding
- National Eye Institute [R01-EY10287, P30EY01319]
- National Institute of Mental Health [T32EY07125]
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We presented naturalistic combinations of virtual self-movement stimuli while recording neuronal activity in monkey cerebral cortex. Monkeys used a joystick to drive to a straight ahead heading direction guided by either object motion or optic flow. The selected cue dominates neuronal responses, often mimicking responses evoked when that stimulus is presented alone. In some neurons, driving strategy creates selective response additivities. In others, it creates vulnerabilities to the disruptive effects of independently moving objects. Such cue interactions may be related to the disruptive effects of independently moving objects in Alzheimer's disease patients with navigational deficits.
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