Population vector

Template:Unref 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:

$F = \frac{\sum_{j} m_{j} F_{j}}{\sum_{j} m_{j}}$

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.

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