Fig. 2. Male and female pursuit responses. Traces show the mean response (N=25) of a male (blue) photoreceptor and a female (red) photoreceptor to a simulated moving target of specified angular width and angular speed. Vertical range is 24 mV. Traces are centred on the peak of the male response and the time axes are scaled by male response duration. The top left plot shows the responses of the same cells to conventional white-noise stimuli (contrast, 25%; cut-off frequency, 400 Hz), male response (blue) above, female response (red) below.

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