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, F , takes the following form:

F = ∑ j m j F j ∑ j m j

Where m j is the activity of cell j , and F j is the preferred input for cell j .

Note that the vector F encodes the input direction, F j , in terms of the activation of a population of neurons.