For things needing your attention: the role of neocortical gamma in sensory perception

Current Opinion in Neurobiology
Dominique L PritchettChristopher I Moore

Abstract

Two general classes of hypotheses for the role for gamma oscillations in sensation are those that predict gamma facilitates signal amplification through local synchronization of a distinct ensemble, and those that predict gamma modulates fine temporal relationships between neurons to represent information. Correlative evidence has been offered for and against these hypotheses. A recent study in which gamma was optogenetically entrained by driving fast-spiking interneurons showed enhanced sensory detection of harder-to-perceive stimuli, those that benefit most from attention, in agreement with the amplification hypotheses. These findings are supported by similar studies employing less specific optogenetic patterns or single neuron stimulation, but contrast with findings based on direct optogenetic stimulation of pyramidal neurons. Key next steps for this topic are described.

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Citations

Jan 16, 2016·Cell·Hoseok KimMarie Carlén
Feb 3, 2016·Frontiers in Neural Circuits·Garrett T Neske
Jul 12, 2016·Current Opinion in Neurobiology·Stephanie R Jones
Mar 3, 2018·Organic & Biomolecular Chemistry·Dénes PálfiBalázs Rózsa
Nov 26, 2015·Neural Computation·Osamu HoshinoKazuo Watanabe
Apr 18, 2018·Frontiers in Neuroscience·Darrin J LeeFady Girgis
May 18, 2019·Applied Psychophysiology and Biofeedback·Jean-Arthur Micoulaud-FranchiFrançois Vialatte
Feb 6, 2020·Neuroscience and Biobehavioral Reviews·Agnese ZazioMarta Bortoletto
Feb 12, 2019·Neurobiology of Disease·Marco de CurtisVadym Gnatkovsky

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