Population vector

In neuroscience, a population vector is the sum of the preferred directions of a population of neurons, weighted by the respective spike counts.

The formula for computing the (normalized) population vector, $\text{[math]}$ , takes the following form:

$\text{[math]}$

Where $\text{[math]}$ is the activity of cell $\text{[math]}$ , and $\text{[math]}$ is the preferred input for cell $\text{[math]}$ .

Note that the vector $\text{[math]}$ encodes the input direction, $\text{[math]}$ , in terms of the activation of a population of neurons.

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