119 lines
2.8 KiB
Matlab
119 lines
2.8 KiB
Matlab
close all
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files = dir('../unit*.mat');
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for file = files'
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a = load(strcat('../', file.name));
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spikes = a.spikes;
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angles = a.angles;
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figure()
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for k = 1:size(spikes, 1)
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subplot(3, 4, k)
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spikeraster(spikes(k,:), -0.2, 0.6);
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end
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end
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%% tuning curves:
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close all
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cosine = @(p,xdata)0.5*p(1).*(1.0-cos(2.0*pi*(xdata/180.0-p(2))));
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files = dir('../unit*.mat');
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phases = zeros(length(files), 1);
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figure()
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for j = 1:length(files)
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file = files(j);
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a = load(strcat('../', file.name));
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spikes = a.spikes;
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angles = a.angles;
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rates = zeros(size(spikes, 1), 1);
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for k = 1:size(spikes, 1)
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r = firingrate(spikes(k,:), 0.0, 0.2);
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rates(k) = r;
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end
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[mr, maxi] = max(rates);
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p0 = [mr, angles(maxi)/180.0-0.5];
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%p = p0;
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p = lsqcurvefit(cosine, p0, angles, rates');
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phase = p(2)*180.0 + 90.0;
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if phase > 180.0
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phase = phase - 180.0;
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end
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phases(j) = phase;
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subplot(2, 3, j);
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plot(angles, rates, 'b');
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hold on;
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plot(angles, cosine(p, angles), 'r');
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hold off;
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xlim([0.0 180.0])
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ylim([0.0 50.0])
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title(sprintf('unit %d', j))
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end
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%% read out:
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a = load('../population04.mat');
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spikes = a.spikes;
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angle = a.angle;
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unitphases = a.phases*180.0 + 90.0;
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unitphases(unitphases>180.0) = unitphases(unitphases>180.0) - 180.0;
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figure();
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subplot(1, 3, 1);
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angleestimates1 = zeros(size(spikes, 2), 1);
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angleestimates2 = zeros(size(spikes, 2), 1);
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for j = 1:size(spikes, 2)
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rates = zeros(size(spikes, 1), 1);
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for k = 1:size(spikes, 1)
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r = firingrate(spikes(k, j), 0.0, 0.2);
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rates(k) = r;
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end
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[x, inx] = sort(phases);
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plot(phases(inx), rates(inx), '-o');
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hold on;
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angleestimates1(j) = popvecangle(phases, rates);
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[m, i] = max(rates);
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angleestimates2(j) = phases(i);
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end
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hold off;
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subplot(1, 3, 2);
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hist(angleestimates1);
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subplot(1, 3, 3);
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hist(angleestimates2);
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angle
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mean(angleestimates1)
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mean(angleestimates2)
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%% read out robustness:
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files = dir('../population*.mat');
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angles = zeros(length(files), 1);
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e1m = zeros(length(files), 1);
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e1s = zeros(length(files), 1);
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e2m = zeros(length(files), 1);
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e2s = zeros(length(files), 1);
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for i = 1:length(files)
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file = files(i);
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a = load(strcat('../', file.name));
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spikes = a.spikes;
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angle = a.angle;
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angleestimates1 = zeros(size(spikes, 2), 1);
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angleestimates2 = zeros(size(spikes, 2), 1);
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for j = 1:size(spikes, 2)
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rates = zeros(size(spikes, 1), 1);
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for k = 1:size(spikes, 1)
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r = firingrate(spikes(k, j), 0.0, 0.2);
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rates(k) = r;
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end
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angleestimates1(j) = popvecangle(phases, rates);
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[m, inx] = max(rates);
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angleestimates2(j) = phases(inx);
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end
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angles(i) = angle;
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e1m(i) = mean(angleestimates1);
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e1s(i) = std(angleestimates1);
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e2m(i) = mean(angleestimates2);
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e2s(i) = std(angleestimates2);
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end
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figure();
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subplot(1, 2, 1);
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scatter(angles, e1m);
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subplot(1, 2, 2);
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scatter(angles, e2m);
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