Fig. 4.

Cortex-wide mapping of sensorimotor modalities. A: individual frames from 2 cycles (top and bottom rows) of a block-presentation visual noise stimulus, showing visually evoked activity superimposed on spontaneous activity. White arrowhead denotes location of visual cortex. Inset shows positioning of cranial window. B: average response to presentation of visual noise stimulus. C: average response to tactile whisker stimulation. D: average activity during periods of locomotion. E: overlay of responses during visual stimulus, whisker stimulus, and locomotion, demonstrating partitioning of cortex by functional properties. Average maps are based on 5 min imaging sessions. Scale bars, 2 mm.