Linear response theory for two neural populations applied to gamma oscillation generation

Payeur, Alexandre; Lefebvre, Jérémie; Maler, Leonard; Longtin, André

doi:10.1103/physreve.87.032703

Cited by 1 publication

(1 citation statement)

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“…Further theoretical studies have highlighted potential issues with the original modeling as it did not specifically account for the fact that there are both ON- and OFF-type ELL pyramidal cells that respond to increases and decreases in the stimulus, respectively (Lefebvre et al, 2009; Payeur et al, 2013). If the feedback pathways simply integrate input from both cell types, then the power of gamma band oscillations would be weak, which is unlike what is observed experimentally.…”

Section: Functions Of Feedback Input Onto Ell Pyramidal Cellsmentioning

confidence: 99%

Novel Functions of Feedback in Electrosensory Processing

Hofmann

Chacron

2019

Front. Integr. Neurosci.

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Environmental signals act as input and are processed across successive stages in the brain to generate a meaningful behavioral output. However, a ubiquitous observation is that descending feedback projections from more central to more peripheral brain areas vastly outnumber ascending feedforward projections. Such projections generally act to modify how sensory neurons respond to afferent signals. Recent studies in the electrosensory system of weakly electric fish have revealed novel functions for feedback pathways in that their transformation of the afferent input generates neural firing rate responses to sensory signals mediating perception and behavior. In this review, we focus on summarizing these novel and recently uncovered functions and put them into context by describing the more “classical” functions of feedback in the electrosensory system. We further highlight the parallels between the electrosensory system and other systems as well as outline interesting future directions.

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Section: Functions Of Feedback Input Onto Ell Pyramidal Cellsmentioning

confidence: 99%