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[projects] extend numbers a bit, other fixes

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This commit is contained in:
Jan Grewe 2020-01-20 18:08:49 +01:00
parent f82555841e
commit 52e71f1d63
2 changed files with 17 additions and 11 deletions
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2
projects/project_adaptation_fit/adaptation_fit.tex
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@ -36,7 +36,7 @@ electroreceptors of the weakly electric fish \textit{Apteronotus
for the PSTH. for the PSTH.
\part Estimate the adaptation time-constant for both the stimulus \part Estimate the adaptation time-constant for both the stimulus
on- and offset. To do this fit an exponential function on- and offset. To do this, fit an exponential function
$f_{A,\tau,y_0}(t)$ to appropriate regions of the data: $f_{A,\tau,y_0}(t)$ to appropriate regions of the data:
\begin{equation} \begin{equation}
f_{A,\tau,y_0}(t) = A \cdot e^{-\frac{t}{\tau}} + y_0, f_{A,\tau,y_0}(t) = A \cdot e^{-\frac{t}{\tau}} + y_0,

26
projects/project_numbers/numbers.tex
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@ -1,6 +1,6 @@
\documentclass[a4paper,12pt,pdftex]{exam} \documentclass[a4paper,12pt,pdftex]{exam}
\newcommand{\ptitle}{Number coding} \newcommand{\ptitle}{Neuronal encoding of quantities}
\input{../header.tex} \input{../header.tex}
\firstpagefooter{Supervisor: Jan Grewe}{phone: 29 74588}% \firstpagefooter{Supervisor: Jan Grewe}{phone: 29 74588}%
{email: jan.grewe@uni-tuebingen.de} {email: jan.grewe@uni-tuebingen.de}
@ -18,19 +18,25 @@
macaque prefrontal cortex (data courtesy of Prof. Nieder). The task macaque prefrontal cortex (data courtesy of Prof. Nieder). The task
of the monkey was to discriminate point-sets with 1 to 4 points. The 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 first column contains the number of points shown plus one. The
remaining columns contain the spike response across 1300\,ms. During remaining columns contain the spike response across 2300\,ms. During
the first 500\,ms the monkey was fixating a target. The next 800\,ms the the first 500\,ms the monkey was fixating a target. The stimulus was
stimulus was shown. This was followed by 1000\,ms delay time before shown for the next 800\,ms. This period was followed
the monkey was allowed to respond. by 1000\,ms delay before the monkey was allowed to respond.
\begin{parts} \begin{parts}
\part Plot the data in an appropriate way. \part Plot the data in an appropriate way (e.g. a rasterplot).
\part Sort the trials according to the stimulus presented and \part Sort the trials according to the stimulus presented and
compute the firing rate (in Hz) in the time interval compute plot for each condition the firing rate as a function of
500-1300\,ms. Plot the firing rate in an appropriate way. time. The plot should illustrate the average response and the variability of the data.
\part Extract the average firing rates for the time
intervals 0-499\,ms, 500-1299\,ms and 1300-2299\,ms. Plot them in
an appropriate way that illustrates the average and the the across
trial variability. Do these measures correlate with the stimulus
condition? Test it!
\part Use an appropriate test to determine whether the firing rate \part Use an appropriate test to determine whether the firing rate
in that interval is significantly different for 1 vs. 4 points in the interval 500-1299\,ms is statistically significantly
shown. different for 1 vs. 4 points. Is it statistically significantly
different from the first 500\,ms period?
\end{parts} \end{parts}
\end{questions} \end{questions}