2/24/04:

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Reading population activity in a speeded 2AFC discrimination and
		    parameter estimation task
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			Mehrdad Jazayeri
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I will talk about how for a population of tuned i.i.d. poisson neurons, 
a speeded 2AFC discrimination can be viewed as a general brownian 
motion of the stochastic log likelihood ratio (log LR) towards one of 
two barriers signifying the two alternatives.

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I will also attempt to show that for a speeded estimation task, the 
accrual of the stochastic Fisher Information (before taking the 
expected value) in time has a similar form to that of the stochastic 
log LR and as such can be viewed as a similar brownian motion, however 
in this case, towards a single barrier which signifies the confidence 
at the time of estimation.