\documentclass[addpoints,10pt]{exam} \usepackage{url} \usepackage{color} \usepackage{hyperref} \pagestyle{headandfoot} \runningheadrule \firstpageheadrule \firstpageheader{Scientific Computing}{Project Assignment}{11/05/2014 -- 11/06/2014} %\runningheader{Homework 01}{Page \thepage\ of \numpages}{23. October 2014} \firstpagefooter{}{}{} \runningfooter{}{}{} \pointsinmargin \bracketedpoints %\printanswers %\shadedsolutions \begin{document} %%%%%%%%%%%%%%%%%%%%% Submission instructions %%%%%%%%%%%%%%%%%%%%%%%%% \sffamily % \begin{flushright} % \gradetable[h][questions] % \end{flushright} \begin{center} \input{../disclaimer.tex} \end{center} %%%%%%%%%%%%%% Questions %%%%%%%%%%%%%%%%%%%%%%%%% \begin{questions} \question The accompanying data {\tt Neuron22.mat} stores a single data matrix {\tt data\_unsorted} containing spike from a neuron in macaque prefrontal cortex. The task of the monkey was to discriminate point sets with 1 to 4 points. The first column contains the number of points shown plus one. The remaining columns contain the spike response across 1300ms. During the first 500ms the monkey was fixating a target. The next 800ms the stimulus was shown. This was followed by 1000ms delay time before the monkey was allowed to respond. \begin{parts} \part Plot the data in an appropriate way. \part Sort the trials according to the stimulus presented and compute the firing rate (in Hz) in the time interval 500-1300ms. Plot the firing rate in an appropriate way. \part Use an appropriate test to determine whether the firing rate in that interval is significantly different for 1 vs. 4 points shown. \end{parts} \end{questions} \end{document}