Feature specific neuronal oscillations in cortical layers DOI Creative Commons
Tommy Clausner, José P. Marques, René Scheeringa

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 31, 2024

Abstract The particular role of cortical oscillations has been a long-debated topic that resulted in variety theoretical frameworks. Oscillatory activity the α band associated with sensory processing, attention as well other cognitive functions, while γ is thought to be related stimulus feature processing. Current frameworks rely on separation architecture into layers. Recently, methodological advancements have allowed test layer specific computations healthy human participants. Using EEG-fMRI, we investigated for first time both, specificity (line orientation) and relationship between laminar BOLD oscillations. We find positively correlated feature-specific signals superficial layers predicted by literature, but found deep contribution well. Furthermore (and frequency) dissociation within general, unspecific, processes process. power -band negatively unspecific neural all further high frequency were specifically signal More interestingly, also observed general modulation effect negative deflections line inhibitory during visual Those findings support association processing point towards involvement multiple more processes.

Language: Английский

Valence-dependent sensory-rhythmic neural entrainment modulates cortico-subcortical dynamics, attention, and memory DOI Creative Commons
Roxane S. Hoyer, Marjorie Bernier, Martineau Louiné

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Summary Recent studies have shown that sensory rhythmic stimulation can enhance executive functions by synchronizing, entraining, oscillations within higher-order cortical networks. However, whether this entrainment extends to subcortical structures and shapes human behavior remains unclear. In a first experiment, we used intracranial EEG recordings in epileptic patients during visual search task. While neutral induced moderate entrainment, demonstrated 5 Hz negative-valence significantly entrain theta widespread task-related cortico-subcortical network, with increased synchrony the ventral stream, hippocampus, dorsolateral prefrontal cortex. second behavioral experiment healthy individuals, performance improved under both conditions, but memory for target images, assessed through an additional recognition task, was enhanced after negative stimulation. These findings unravel role of valence modulating brain activity behaviors pave way its further application clinical intervention.

Language: Английский

Citations

0
Feature specific neuronal oscillations in cortical layers DOI Creative Commons
Tommy Clausner, José P. Marques, René Scheeringa

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 31, 2024

Abstract The particular role of cortical oscillations has been a long-debated topic that resulted in variety theoretical frameworks. Oscillatory activity the α band associated with sensory processing, attention as well other cognitive functions, while γ is thought to be related stimulus feature processing. Current frameworks rely on separation architecture into layers. Recently, methodological advancements have allowed test layer specific computations healthy human participants. Using EEG-fMRI, we investigated for first time both, specificity (line orientation) and relationship between laminar BOLD oscillations. We find positively correlated feature-specific signals superficial layers predicted by literature, but found deep contribution well. Furthermore (and frequency) dissociation within general, unspecific, processes process. power -band negatively unspecific neural all further high frequency were specifically signal More interestingly, also observed general modulation effect negative deflections line inhibitory during visual Those findings support association processing point towards involvement multiple more processes.

Language: Английский

Citations

1