Figure 6.

Comparison of ICs obtained with and without visual stimulation for two monkeys. A, B, ICs obtained during stimulation with a retinotopic localizer stimulus (top) and with a blank screen in which only a fixation spot was visible (bottom). The two stimulus conditions were interleaved within each scan session. Note the similarity between the IC sets obtained with and without a visual stimulus. C, D, Matrices of spatial correlation values between the real ICs obtained under the two stimulus conditions (same conventions as in supplemental Fig. S7, available at www.jneurosci.org as supplemental material). Mean SNR for retinotopy condition: 41.6 (monkey B), 35.1 (monkey M); mean SNR for blank condition: 40.3 (monkey B), 37.7 (monkey M).