Local cortical desynchronization and pupil-linked arousal differentially shape brain states for optimal sensory performance.

Conversely, post-stimulus gamma power showed a tendency to decrease with growing pre-stimulus pupil size that did not reach statistical significance (β = −0.016, SE = 0.01, p=0.1; Supplementary file 8 ).

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Similarly, sensory-evoked gamma power increased with pre-stimulus auditory cortical desynchronization and showed a trend to saturate at intermediate levels.

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