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[projects] updated lif and serial correlations

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Jan Benda 2021-05-05 11:49:14 +02:00
parent 3bfa4b340c
commit d9f7f74d72
2 changed files with 9 additions and 9 deletions
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12
projects/project_lif/lif.tex
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@ -111,14 +111,10 @@ potentials $V_i$ for successive time points $t_i$ according to
a sine wave $E(t)=A\sin(2\pi ft)$ with $A=2$\,mV and frequency a sine wave $E(t)=A\sin(2\pi ft)$ with $A=2$\,mV and frequency
$f=10$, 20, and 30\,Hz. $f=10$, 20, and 30\,Hz.
\part Compute the firing rate as a function of the frequency of \part Compute the firing rate (number of spikes per time) as a
the stimulating sine wave ($A=2$\,mV and frequencies between 5 and function of the frequency of the stimulating sine wave ($A=2$\,mV
30\,Hz). For a spike train with $n$ spikes at times $t_k$ ($k=1, and frequencies between 5 and 30\,Hz).
2, \ldots n$) the firing rate is
\begin{equation}
\label{firingrate}
r = \frac{n-1}{t_n - t_1}
\end{equation}
What do you observe? Does the firing rate encode the frequency of What do you observe? Does the firing rate encode the frequency of
the stimulus? Look at the spike trains in response to the sine the stimulus? Look at the spike trains in response to the sine
waves to figure out what is going on. waves to figure out what is going on.

6
projects/project_serialcorrelation/serialcorrelation.tex
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@ -29,7 +29,7 @@ and \texttt{spikes} is a cell array containing the spike times in
seconds of recorded spontaneous activity for each of these cells. seconds of recorded spontaneous activity for each of these cells.
\begin{questions} \begin{questions}
\question Baseline firing rates \question Baseline firing properties
\begin{parts} \begin{parts}
\part Load the data! How many cells are contained in the file? \part Load the data! How many cells are contained in the file?
@ -44,6 +44,10 @@ seconds of recorded spontaneous activity for each of these cells.
\part Compute the firing rate of each cell, i.e. number of spikes per time. \part Compute the firing rate of each cell, i.e. number of spikes per time.
Illustrate the results by means of a histogram and/or box whisker plot. Illustrate the results by means of a histogram and/or box whisker plot.
\part Compute interspike-interval histograms and the
coefficient-of-variation of the interspike intervals, $C_{ISI}$,
for each of the cells.
\end{parts} \end{parts}
\question Serial correlations \question Serial correlations