A peri-stimulus time histogram (PSTH) is a commonly usedformat for displaying neurophysiological data. In a PSTH, theaverage firing rate of a neuron is depicted as a function of time.Trials are aligned in time onto the occurrence of a stimulus orbehavioral event. Construct a PSTH following these steps:
1) Download spike data by asking me through a personalmessage. The Matrix spikedata.m indicates heural activity overfive trials, each 1 second long. Each row is a trial, each columnis one millisecond. A 1 indicates that an action potential occurredin that time bin.
2)Smooth the data with a Guassian Kernel.
3)Plot the average firing rate across all five trials as afunction of time. This is the PSTH
4)At a certain point in the trial, a stimulus turned on andthen turned off. What is your best guess for the timings of theonset and offset of htat stimulus?
Please submit the PSTH and the matlab code that generated it,and your estimates of the stimulus onset and offset times.

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