Journal
NEURON
Volume 111, Issue 7, Pages 987-1002Publisher
CELL PRESS
DOI: 10.1016/j.neuron.2023.03.015
Keywords
-
Categories
Ask authors/readers for more resources
This article explores the mechanisms underlying flexible inter-areal communication in the cortex, discussing four mechanisms: oscillatory synchronization, communication-through-resonance, non-linear integration, and linear signal transmission. The authors argue that resonance and non-linear integration are viable alternative mechanisms for computation and selective communication. Furthermore, they propose a new hypothesis regarding feedforward and feedback communication frequencies.
What mechanisms underlie flexible inter-areal communication in the cortex? We consider four mechanisms for temporal coordination and their contributions to communication: (1) Oscillatory synchronization (commu-nication-through-coherence); (2) communication-through-resonance; (3) non-linear integration; and (4) linear signal transmission (coherence-through-communication). We discuss major challenges for communication-through-coherence based on layer-and cell-type-specific analyses of spike phase-locking, heterogeneity of dynamics across networks and states, and computational models for selective communication. We argue that resonance and non-linear integration are viable alternative mechanisms that facilitate computation and selective communication in recurrent networks. Finally, we consider communication in relation to cortical hierarchy and critically examine the hypothesis that feedforward and feedback communication use fast (gamma) and slow (alpha/beta) frequencies, respectively. Instead, we propose that feedforward propagation of prediction errors relies on the non-linear amplification of aperiodic transients, whereas gamma and beta rhythms represent rhythmic equilibrium states that facilitate sustained and efficient information encoding and amplification of short-range feedback via resonance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available