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[Projects] add photoreceptor project description

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projects/disclaimer.tex
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\vspace{1ex}
The {\bf code} and the {\bf presentation} should be uploaded to
ILIAS at latest on Thursday, November 5th, 13:00h. The
presentations start on Thursday 13:00h. Please hand in your
ILIAS at latest on Thursday, February XXXXth, 13:00h. The
presentations start on XXXXXXX. Please hand in your
presentation as a pdf file. Bundle everything (the pdf and the
code) into a {\em single} zip-file.
@ -22,7 +22,7 @@
{\em figures} that you use in your slides. The figures should
follow the guidelines for proper plotting as discussed in the
course. The code should be properly commented
and comprehensible by third persons (use proper and consistent
and comprehensible by a third persons (use proper and consistent
variable and function names).
\vspace{1ex} \textbf{Please write your name and matriculation

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projects/project_photoreceptor/photoreceptor.tex Normal file
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\documentclass[addpoints,11pt]{exam}
\usepackage{url}
\usepackage{color}
\usepackage{hyperref}
\pagestyle{headandfoot}
\runningheadrule
\firstpageheadrule
\firstpageheader{Scientific Computing}{Project Assignment}{WS 2016/17}
%\runningheader{Homework 01}{Page \thepage\ of \numpages}{23. October 2014}
\firstpagefooter{}{}{{\bf Supervisor:} Jan Grewe}
\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 %%%%%%%%%%%%%%%%%%%%%%%%%
\section*{Analysis of insect photoreceptor data.}
In this project you will analyse data from intracellular recordings of
a fly photoreceptor. A R~1--6 photoreceptor was intracellularly
recorded and was stimulated with a light stimulus.
\begin{questions}
\question{} The accompanying dataset (photoreceptor\_data.zip)
contains seven mat files. Each of these holds the data from one
stimulus intensity. In each file are three variables. (i)
\textit{voltage} a matrix with the recorded membrane potential from
10 consecutive trials, (ii) \textit{time} a matrix with the
time-axis for each trial, and (iii) \textit{trace\_meta} a structure
that stores several metadata. This is the place where you find the
\emph{amplitude}, that is the voltage that drives the light
stimulus, i.e. the light-intensity.
\begin{parts}
\part{} Create a plot of the raw data. Plot the average response as
a function of time. This plot should also show the
across-trial variability.\\[0.5ex]
\part{} You will notice that the responses have three main parts, a
pre-stimulus phase, the phase in which the light was on, and finally a
post-stimulus time. Create an characteristic curve that plots the
response strength as a function of the stimulus intensity for the ``onset''
and the ``steady state'' phases.\\[0.5ex]
\part{} You may also decide to analyze the post-stimulus response in some
more detail.
\end{parts}
\end{questions}
\end{document}