Former Obleserlab PhD student Leo Waschke is now out in eLife with an ingenious demonstration how both endogenous and exogenously-driven changes in the steepness of the brain-electric 1/f power spectrum (in part linked directly to local excitation:inhibiton, E:I, ratio) in neural populations can affect behaviour in complex, multi-sensory environments: “Modality-specific tracking of attention and sensory statistics in the human electrophysiological spectral exponent”.
The results draw heavily on the recent spectral-slope exponent work by our collaborators at University of California San Diego in the lab of Bradley Voytek, and have come together in a three-lab collabo of Lübeck, San Diego, and Leo’s current scientific home, the Douglas Garrett lab at the MPIB.
1/ Our preprint is published in @eLife! I think we kind of bury the lede here (relevant to the “activity silent” neural activity conversation especially) in that we see clear and strong spectral exponent effects for tracking stimulus statistics that are *invisible* in ERPs. https://t.co/G5KddvDZrW pic.twitter.com/YKZjLD9M3c— Brad Voytek (@bradleyvoytek) October 22, 2021