Visual Grating Task


[Task Description]
Monkey was sitting with head fixed. His arm motion was also restrained. ECoG data and eye position were recorded. There was a monitor in front of the monkey. Grating pattern that moves in eight direction was presented on the screen. There was no fixation required. Blank and stimulus pattern were switched alternatively every 2 sec. Stimulus events can be decoded from 129th channel by analog value.
ECoG data were sampled at 1KHz. One cycle of sinusoid pattern was 27mm with speed at 108mm/sec (4Hz). Distance between monkey and screen was 490mm.


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