38 lines
1.3 KiB
TeX
38 lines
1.3 KiB
TeX
\documentclass[a4paper,12pt,pdftex]{exam}
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\newcommand{\ptitle}{Number coding}
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\input{../header.tex}
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\firstpagefooter{Supervisor: Jan Grewe}{phone: 29 74588}%
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{email: jan.grewe@uni-tuebingen.de}
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\begin{document}
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\input{../instructions.tex}
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%%%%%%%%%%%%%% Questions %%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{questions}
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\question The accompanying data {\tt Neuron22.mat} stores a single
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data matrix {\tt data\_unsorted} containing spikes from a neuron in
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macaque prefrontal cortex (data courtesy of Prof. Nieder). The task
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of the monkey was to discriminate point-sets with 1 to 4 points. The
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first column contains the number of points shown plus one. The
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remaining columns contain the spike response across 1300\,ms. During
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the first 500\,ms the monkey was fixating a target. The next 800\,ms the
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stimulus was shown. This was followed by 1000\,ms delay time before
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the monkey was allowed to respond.
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\begin{parts}
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\part Plot the data in an appropriate way.
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\part Sort the trials according to the stimulus presented and
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compute the firing rate (in Hz) in the time interval
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500-1300\,ms. Plot the firing rate in an appropriate way.
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\part Use an appropriate test to determine whether the firing rate
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in that interval is significantly different for 1 vs. 4 points
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shown.
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\end{parts}
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\end{questions}
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\end{document}
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