Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period

Environmental enrichment (EE) has been shown to promote neural plasticity. Its capacity to induce functional repair in models which exhibit profound sensory deficits due to aberrant axonal guidance has not been well-characterized. Ten-m3 knockout (KO) mice exhibit a highly-stereotyped miswiring of i...

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Main Authors: James Blok, Dylan A. Black, Justin Petersen, Atomu Sawatari, Catherine A. Leamey
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-02-01
Series:Frontiers in Behavioral Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fnbeh.2020.00022/full
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author James Blok
Dylan A. Black
Justin Petersen
Atomu Sawatari
Catherine A. Leamey
author_facet James Blok
Dylan A. Black
Justin Petersen
Atomu Sawatari
Catherine A. Leamey
author_sort James Blok
collection DOAJ
description Environmental enrichment (EE) has been shown to promote neural plasticity. Its capacity to induce functional repair in models which exhibit profound sensory deficits due to aberrant axonal guidance has not been well-characterized. Ten-m3 knockout (KO) mice exhibit a highly-stereotyped miswiring of ipsilateral retinogeniculate axons and associated profound deficits in binocularly-mediated visual behavior. We determined whether, and when, EE can drive functional recovery by analyzing Ten-m3 KO and wildtype (WT) mice that were enriched for 6 weeks from adulthood, weaning or birth in comparison to standard-housed controls. EE initiated from birth, but not later, rescued the response of Ten-m3 KOs to the “looming” stimulus (expanding disc in dorsal visual field), suggesting improved visual function. EE can thus induce recovery of visual behavior, but only during an early developmentally-restricted time-window.
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spelling doaj.art-a75fb6115753456899cf5e299ef00fdf2022-12-21T18:52:02ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532020-02-011410.3389/fnbeh.2020.00022450015Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical PeriodJames BlokDylan A. BlackJustin PetersenAtomu SawatariCatherine A. LeameyEnvironmental enrichment (EE) has been shown to promote neural plasticity. Its capacity to induce functional repair in models which exhibit profound sensory deficits due to aberrant axonal guidance has not been well-characterized. Ten-m3 knockout (KO) mice exhibit a highly-stereotyped miswiring of ipsilateral retinogeniculate axons and associated profound deficits in binocularly-mediated visual behavior. We determined whether, and when, EE can drive functional recovery by analyzing Ten-m3 KO and wildtype (WT) mice that were enriched for 6 weeks from adulthood, weaning or birth in comparison to standard-housed controls. EE initiated from birth, but not later, rescued the response of Ten-m3 KOs to the “looming” stimulus (expanding disc in dorsal visual field), suggesting improved visual function. EE can thus induce recovery of visual behavior, but only during an early developmentally-restricted time-window.https://www.frontiersin.org/article/10.3389/fnbeh.2020.00022/fullvisual developmentplasticityenvironmental enrichmentipsilateralsubcorticalten-m/Teneurin/Odz
spellingShingle James Blok
Dylan A. Black
Justin Petersen
Atomu Sawatari
Catherine A. Leamey
Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
Frontiers in Behavioral Neuroscience
visual development
plasticity
environmental enrichment
ipsilateral
subcortical
ten-m/Teneurin/Odz
title Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
title_full Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
title_fullStr Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
title_full_unstemmed Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
title_short Environmental Enrichment Rescues Visually-Mediated Behavior in Ten-m3 Knockout Mice During an Early Critical Period
title_sort environmental enrichment rescues visually mediated behavior in ten m3 knockout mice during an early critical period
topic visual development
plasticity
environmental enrichment
ipsilateral
subcortical
ten-m/Teneurin/Odz
url https://www.frontiersin.org/article/10.3389/fnbeh.2020.00022/full
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AT justinpetersen environmentalenrichmentrescuesvisuallymediatedbehaviorintenm3knockoutmiceduringanearlycriticalperiod
AT atomusawatari environmentalenrichmentrescuesvisuallymediatedbehaviorintenm3knockoutmiceduringanearlycriticalperiod
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