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more exercises for the reconstruction.

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Jan Grewe 2014-10-30 18:10:36 +01:00
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programming/lectures/sta_stc.tex
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@ -333,11 +333,24 @@ ylabel('correlation')
method to create the PSTH) and convolve (\verb+conv+) it with the method to create the PSTH) and convolve (\verb+conv+) it with the
\textbf{STA}. \textbf{STA}.
\end{enumerate} \end{enumerate}
\end{frame}
\begin{frame}
\frametitle{Relating stimulus and response}
\framesubtitle{Reverse reconstruction using the \textbf{STA}}
\textbf{Exercise:} \textbf{Exercise:}
\begin{enumerate} \begin{enumerate}
\item Reconstruct the stimulus from the P-unit data. \item Reconstruct the stimulus from the P-unit data.
\item Plot original and reconstructed stimulus into the same plot. \item Plot original and reconstructed stimulus into the same plot.
\item Are they similar? In which instances are they different? \item Are they similar? In which instances are they different?
\item Estimate the differences in terms of the
\textit{mean-square-error} you have used in week 2. Normalize it
to the standard-deviation of the original stimulus.
\item Estimate the \textbf{STA} on the basis of the first half of
the data and reconstruct the stimulus of the second half.
\item Compare the reconstruction errors.
\item How strongly does the error depend on the amount of data you
use?
\end{enumerate} \end{enumerate}
\end{frame} \end{frame}