Distributed representation of perceptual categories in the auditory cortex (Kim and Bao 2008)

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Accession:113459
Examines the hypothesis that enlargement in cortical stimulus representation is a mechanism of categorical perception. Categorical perception is tested using discrimination and identification ability.
Reference:
1 . Kim H, Bao S (2008) Distributed representation of perceptual categories in the auditory cortex. J Comput Neurosci 24:277-90 [PubMed]
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Model Information (Click on a link to find other models with that property)
Model Type: Realistic Network;
Brain Region(s)/Organism: Auditory cortex;
Cell Type(s):
Channel(s):
Gap Junctions:
Receptor(s):
Gene(s):
Transmitter(s):
Simulation Environment: MATLAB;
Model Concept(s): Perceptual Categories; Audition;
Implementer(s): Bao, Shaowen [sbao at berkeley.edu]; Kim, Heesoo [heesoo at berkeley.edu];
function x = binornd_sim(P);
% Bernoulli random process.  Bounded by 0 and 1.  Equation 5 in paper.

for j=1:length(P)
    P_1=(P(j)-P(end))/(P(1)-P(end));
    if P_1>1;
        P_1=1;
    end
    if P_1<0
        P_1=0;
    end
    
    for n=1:100;
        trial_1=binornd(1,P_1,1, 100);
        perf_1(n, j)=sum(trial_1);
    end
end
        
for n=1:length(P);
    x(:,n)=sort(perf_1(:,n));
end