Dynamics of spatial summation in primary visual cortex of alert monkeys -- Data Supplement - Supplemental Figure -- Proceedings of the National Academy of Sciences

Supplementary material for Kapadia et al. (1999) Proc. Natl. Acad. Sci. USA 96 (21), 12073-12078.

Fig. 5.
Analysis of eye position during stimulus presentation. (a) Single recording session. Points represent the mean eye position during stimulus presentation for individual experiments, and are plotted with 95% confidence intervals. The animals maintain tight fixations. There are no systematic differences in eye position among the experiments. Small deviations in mean eye positions between experiments are similar to errors within single experiments. (b) Population analysis. Variances in eye position among experiments are compared to the variances within experiments over the entire subset of recordings in which eye position information was saved. Data from individual sessions were averaged and are plotted as a mean value with 95% confidence intervals. The two distributions are well overlapped, indicating that there is little reason to believe that systematic differences in eye movements contributed to the results described in this paper.