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Spike-triggered average in the H1 neuron

Assignment for Computational Neuroscience class by University of Washington

Characterizing coding in the H1 neuron

The data set provided with is recorded from the blowfly H1 neuron. In this experiment, an electrode is placed in the fly’s brain– in a region called the lobula plate– where there is a set of large neurons that encode information about wide-field motion, motion of the entire visual field. We are recording from one of these neurons, H1, which encodes horizontal motion. alt text

Reverse correlation: the spike-triggered average

This code calculates the spike-triggered average.The spike-triggered average is the average stimulus that precedes a spike. To calculate it, you need to know the spike times, aligned with the stimulus. Link to the data can be found in the file_link.txt alt text

What do we learn from the spike-triggered average?

What is the spike-triggered average useful for? We can use it to predict the times of spikes given a new random piece of stimulus.

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