Automated facial feature evaluation system to prevent stress of head fixed mice.

Head fixation of rodents is a widely utilized and important technique that enables laboratories to measure brain activity during behavior, but head fixation can increase stress which affects both behavior and underlying brain activity, as well as animal welfare. It is therefore critical to keep stre...

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Main Authors: Anna Nasr, Gianna Rettinger, Huibert D Mansvelder, Robert N S Sachdev, Matthew E Larkum
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0322530
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author Anna Nasr
Gianna Rettinger
Huibert D Mansvelder
Robert N S Sachdev
Matthew E Larkum
author_facet Anna Nasr
Gianna Rettinger
Huibert D Mansvelder
Robert N S Sachdev
Matthew E Larkum
author_sort Anna Nasr
collection DOAJ
description Head fixation of rodents is a widely utilized and important technique that enables laboratories to measure brain activity during behavior, but head fixation can increase stress which affects both behavior and underlying brain activity, as well as animal welfare. It is therefore critical to keep stress levels low, yet it is particularly challenging to assess stress in immobilized, head-fixed rodents. Conventional stress evaluation methods, such as blood corticosterone analysis, are labor-intensive and conducted post hoc, and In situ approaches require experienced personnel and constant vigilance during experiments. In this study, we present MouseCare, an automated software solution for immediate stress detection by real-time facial feature video analysis in head-fixed mice. MouseCare performs on par with or better than conventional stress measures, and is significantly less labor-intensive. This approach enables objective measures of stress that are needed to determine when an experiment can commence, but also when it should be stopped. We conclude that MouseCare offers a cost-effective and easily implementable strategy to manage stress levels in rodents that can increase data quality and improve animal welfare.
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institution Kabale University
issn 1932-6203
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publishDate 2025-01-01
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spelling doaj-art-e02492cf71f9408ebe36ecdea6be654b2025-08-20T03:32:15ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01206e032253010.1371/journal.pone.0322530Automated facial feature evaluation system to prevent stress of head fixed mice.Anna NasrGianna RettingerHuibert D MansvelderRobert N S SachdevMatthew E LarkumHead fixation of rodents is a widely utilized and important technique that enables laboratories to measure brain activity during behavior, but head fixation can increase stress which affects both behavior and underlying brain activity, as well as animal welfare. It is therefore critical to keep stress levels low, yet it is particularly challenging to assess stress in immobilized, head-fixed rodents. Conventional stress evaluation methods, such as blood corticosterone analysis, are labor-intensive and conducted post hoc, and In situ approaches require experienced personnel and constant vigilance during experiments. In this study, we present MouseCare, an automated software solution for immediate stress detection by real-time facial feature video analysis in head-fixed mice. MouseCare performs on par with or better than conventional stress measures, and is significantly less labor-intensive. This approach enables objective measures of stress that are needed to determine when an experiment can commence, but also when it should be stopped. We conclude that MouseCare offers a cost-effective and easily implementable strategy to manage stress levels in rodents that can increase data quality and improve animal welfare.https://doi.org/10.1371/journal.pone.0322530
spellingShingle Anna Nasr
Gianna Rettinger
Huibert D Mansvelder
Robert N S Sachdev
Matthew E Larkum
Automated facial feature evaluation system to prevent stress of head fixed mice.
PLoS ONE
title Automated facial feature evaluation system to prevent stress of head fixed mice.
title_full Automated facial feature evaluation system to prevent stress of head fixed mice.
title_fullStr Automated facial feature evaluation system to prevent stress of head fixed mice.
title_full_unstemmed Automated facial feature evaluation system to prevent stress of head fixed mice.
title_short Automated facial feature evaluation system to prevent stress of head fixed mice.
title_sort automated facial feature evaluation system to prevent stress of head fixed mice
url https://doi.org/10.1371/journal.pone.0322530
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AT giannarettinger automatedfacialfeatureevaluationsystemtopreventstressofheadfixedmice
AT huibertdmansvelder automatedfacialfeatureevaluationsystemtopreventstressofheadfixedmice
AT robertnssachdev automatedfacialfeatureevaluationsystemtopreventstressofheadfixedmice
AT matthewelarkum automatedfacialfeatureevaluationsystemtopreventstressofheadfixedmice