Fig. 9.

Small effect on weights assigned to each target by latency difference in the responses to each target presented singly. A and C: experiments that varied the onset time of 2 moving stimuli with equal luminance. B and D: experiments that varied the luminance of 2 moving stimuli and indirectly the latency of pursuit initiation for each stimulus singly. Filled and open symbols plot weights for the earlier and later stimuli, respectively, in A and C and the bright and dim stimuli, respectively, in B and D. Data were obtained from the first 50 ms of pursuit. A and B: monkey G. C and D: monkey P.