Expreimentation II - Attention

Attention affect how visual neurons collect visual information over space. In other words, it can affect the receptive field of a neuron. Describe (or draw, including a legend) how attention and how a lack of attention affect receptive field size.

To measure the effects of attention on a particular task, we need to manipulate attention. Give an example of a task that manipulate spatial attention and note how attention is manipulated.