Quentin Perrenoud
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q-perrenoud.bsky.social
Quentin Perrenoud
@q-perrenoud.bsky.social
Neuroscientist. Interested in activity patterns in the cortex, unaffordable guitars and mexican food. Worked at Yale University, University of Amsterdam and ESPCI Paris
(7/8) Gamma event rate increases during visually guided responses and suppressing gamma events during a task decrease visual detection performance
October 8, 2025 at 5:09 PM
(6/8) Most visually evoked spikes happen during gamma events! The more events you get during a visual stimulus, the more spikes you get as well
October 8, 2025 at 5:08 PM
(5/8) Events are suppressed if we turn off the visual thalamus. Conversely events can be evoked by short activation of thalamic terminals
October 8, 2025 at 5:08 PM
(4/8) Gamma events rate is modulated by arousal and locomotion. You get more events when a mouse is awake and active and more narrow band gamma power
October 8, 2025 at 5:07 PM
(3/8) Narrow band power around 55Hz is caused by events patterning in bursts. Distributed events yield power in the broader gamma range (30-80Hz). So, gamma is an oscillation … but not always
October 8, 2025 at 5:06 PM
(2/8) Using a new method: CBASS (github.com/cardin-higle...) we establish that gamma power can be linked to specific translaminar network events. Events can occur in oscillatory bursts or in isolation but maintain consistent dynamics throughout
October 8, 2025 at 5:05 PM