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. Author manuscript; available in PMC: 2017 Mar 15.
Published in final edited form as: Nature. 2016 Apr 27;533(7601):90–94. doi: 10.1038/nature17941

Extended Data Figure 3. Cortical spread of light and dark evoked activity in epi-fluorescence imaging.

Extended Data Figure 3

a, The wide field epi-fluorescence imaging of visual cortex reveals a similar visuotopic progression for the zones of activity found for static light and dark bar stimuli at different locations in elevation. b, The bandwidth of the normalized cortical activity pattern, characterized by half width at half maximum (HWHM), shows that the light stimuli evoke broader cortical activity patterns than dark stimuli at the same visuotopic location (N = 21 stimulus-evoked response maps from 4 animals, P = 9.6 × 10–5, rank-sum test). Error bars indicate s.e.m.