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Q: neurons in area V2

Greg Francis gfrancis at wizard
Mon Nov 28 12:06:55 EST 1994

I am working on a neural network model of visual perception with relevence to cells  
in area V2 of visual cortex. A reviewer of the paper suggested that some of the  
model cell properties may be unphysiological. I'd like to know if anyone can give me  
references to the following issues.

(1) Do cells in V2 have a non-zero baseline firing rate?

(2) Oriented cells in V2 tend to respond to stimuli of a particular orientation. Do  
any cells show below baseline firing rates for stimuli of the opposite (90 degrees)  

(3) Do any oriented cells in V2 ever show a rebound of activity due to the offset of  
a stimulus oriented 90 degrees from the cell's optimal orientation? (a la MacKay  
orientation afterimages, for those with a perceptual background)

Any help would be appreciated. Please respond to: gfrancis at psych.purdue.edu


Greg Francis, PhD     | "It's the opposite of fun. It's golf."
Cognitive Psychology  | Ellen Degeneres, "These Friends Of Mine"
Purdue University     |
Assistant Professor   | NeXTMail OK.

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