small changes
This commit is contained in:
parent
57f727ecf4
commit
29b33fdf93
@ -103,13 +103,12 @@ spikes = lifboltzmanspikes( trials, input, tmax, Dnoise, imax, ithresh, slope );
|
|||||||
|
|
||||||
For which slopes can the two stimuli be well discriminated?
|
For which slopes can the two stimuli be well discriminated?
|
||||||
|
|
||||||
\underline{Hint:} A possible readout is to set a threshold $n_{thresh}$ for
|
\underline{Hint:} A possible readout is to set a threshold
|
||||||
the observed spike count. Any response smaller than the threshold
|
$n_{thresh}$ for the observed spike count. Any response smaller
|
||||||
assumes that the stimulus was $I_1$, any response larger than the
|
than the threshold assumes that the stimulus was $I_1$, any
|
||||||
threshold assumes that the stimulus was $I_2$. What is the
|
response larger than the threshold assumes that the stimulus was
|
||||||
probability that the stimulus was indeed $I_1$ or $I_2$,
|
$I_2$. Find the threshold $n_{thresh}$ that results in the best
|
||||||
respectively? Find the threshold $n_{thresh}$ that
|
discrimination performance.
|
||||||
results in the best discrimination performance.
|
|
||||||
|
|
||||||
\part Also plot the Fano factor as a function of the slope. How is it related to the discriminability?
|
\part Also plot the Fano factor as a function of the slope. How is it related to the discriminability?
|
||||||
|
|
||||||
|
@ -97,12 +97,11 @@ input = 75.0; % I_2
|
|||||||
|
|
||||||
For which observation times can the two stimuli perfectly discriminated?
|
For which observation times can the two stimuli perfectly discriminated?
|
||||||
|
|
||||||
\underline{Hint:} A possible readout is to set a threshold $n_{thresh}$ for
|
\underline{Hint:} A possible readout is to set a threshold
|
||||||
the observed spike count. Any response smaller than the threshold
|
$n_{thresh}$ for the observed spike count. Any response smaller
|
||||||
assumes that the stimulus was $I_1$, any response larger than the
|
than the threshold assumes that the stimulus was $I_1$, any
|
||||||
threshold assumes that the stimulus was $I_2$. What is the
|
response larger than the threshold assumes that the stimulus was
|
||||||
probability that the stimulus was indeed $I_1$ or $I_2$,
|
$I_2$. For a given $W$ find the threshold $n_{thresh}$ that
|
||||||
respectively? For a given $W$ find the threshold $n_{thresh}$ that
|
|
||||||
results in the best discrimination performance.
|
results in the best discrimination performance.
|
||||||
|
|
||||||
\part Also plot the Fano factor as a function of $W$. How is it related to the discriminability?
|
\part Also plot the Fano factor as a function of $W$. How is it related to the discriminability?
|
||||||
|
@ -119,7 +119,7 @@ spikes = pifouspikes( trials, input, tmax, Dnoise, outau );
|
|||||||
interspike intervals. How well do they describe the real
|
interspike intervals. How well do they describe the real
|
||||||
distributions for the different conditions?
|
distributions for the different conditions?
|
||||||
|
|
||||||
\part Also fit eq.~(\ref{pcn}) to the data. Here you need to apply a non-linear fit algorithm.
|
\part Also fit eq.~(\ref{pcn}) to the data using maximum (log)-likelihood.
|
||||||
|
|
||||||
How well does this function describe the data?
|
How well does this function describe the data?
|
||||||
|
|
||||||
|
Reference in New Issue
Block a user