» Articles » PMID: 39151954

Experience Dependence of Alpha Rhythms and Neural Dynamics in the Mouse Visual Cortex

Overview
Journal J Neurosci
Specialty Neurology
Date 2024 Aug 16
PMID 39151954
Authors
Affiliations
Soon will be listed here.
Abstract

The role of experience in the development and maintenance of emergent network properties such as cortical oscillations and states is poorly understood. To define how early-life experience affects cortical dynamics in the visual cortex of adult, head-fixed mice, we examined the effects of two forms of blindness initiated before eye opening and continuing through recording: (1) bilateral loss of retinal input (enucleation) and (2) degradation of visual input (eyelid suture). Neither form of deprivation fundamentally altered the state-dependent regulation of firing rates or local field potentials. However, each deprivation caused unique changes in network behavior. Laminar analysis revealed two different generative mechanisms for low-frequency synchronization: one prevalent during movement and the other during quiet wakefulness. The former was absent in enucleated mice, suggesting a mouse homolog of human alpha oscillations. In addition, neurons in enucleated animals were less correlated and fired more regularly, but no change in mean firing rate. Eyelid suture decreased firing rates during quiet wakefulness, but not during movement, with no effect on neural correlations or regularity. Sutured animals showed a broadband increase in depth EEG power and an increased occurrence, but reduced central frequency, of narrowband gamma oscillations. The complementary-rather than additive-effects of lid suture and enucleation suggest that the development of emergent network properties does not require vision but is plastic to modified input. Our results suggest a complex interaction of internal set points and experience determines mature cortical activity, with low-frequency synchronization being particularly susceptible to early deprivation.

References
1.
Campus C, Signorini S, Vitali H, De Giorgis V, Papalia G, Morelli F . Sensitive period for the plasticity of alpha activity in humans. Dev Cogn Neurosci. 2021; 49:100965. PMC: 8167822. DOI: 10.1016/j.dcn.2021.100965. View

2.
Bottari D, Troje N, Ley P, Hense M, Kekunnaya R, Roder B . Sight restoration after congenital blindness does not reinstate alpha oscillatory activity in humans. Sci Rep. 2016; 6:24683. PMC: 4832338. DOI: 10.1038/srep24683. View

3.
Keck T, Keller G, Jacobsen R, Eysel U, Bonhoeffer T, Hubener M . Synaptic scaling and homeostatic plasticity in the mouse visual cortex in vivo. Neuron. 2013; 80(2):327-34. DOI: 10.1016/j.neuron.2013.08.018. View

4.
Vinck M, Batista-Brito R, Knoblich U, Cardin J . Arousal and locomotion make distinct contributions to cortical activity patterns and visual encoding. Neuron. 2015; 86(3):740-54. PMC: 4425590. DOI: 10.1016/j.neuron.2015.03.028. View

5.
McCormick D, Nestvogel D, He B . Neuromodulation of Brain State and Behavior. Annu Rev Neurosci. 2020; 43:391-415. DOI: 10.1146/annurev-neuro-100219-105424. View