Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation

Abstract Evidence increasingly reveals that non-human animals in monotonous situations can show boredom-like states, distinctively manifesting as increases in both arousal-seeking, restless behaviour and low arousal, drowsy behaviour. However, task related boredom has been little investigated in ani...

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Main Authors: Charlotte C. Burn, Ka Ho Timothy Ng, Matthew O. Parker
Format: Article
Language:English
Published: Springer 2025-07-01
Series:Animal Cognition
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Online Access:https://doi.org/10.1007/s10071-025-01979-6
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author Charlotte C. Burn
Ka Ho Timothy Ng
Matthew O. Parker
author_facet Charlotte C. Burn
Ka Ho Timothy Ng
Matthew O. Parker
author_sort Charlotte C. Burn
collection DOAJ
description Abstract Evidence increasingly reveals that non-human animals in monotonous situations can show boredom-like states, distinctively manifesting as increases in both arousal-seeking, restless behaviour and low arousal, drowsy behaviour. However, task related boredom has been little investigated in animals, but could have implications for animal training efficacy, for animal welfare, and for modelling human task fatigue. We investigated whether varied sensory stimuli helped prevent boredom-like behaviour in a repetitive foraging scenario, compared with a monotonous equivalent. In a cross-over design, 20 rats searched pairs of containers for a small reward hidden within a digging material, with a new pair of containers presented every 2 min during a 20 min session. Multisensory cues distinguished the rewarded vs. non-rewarded containers. We hypothesized that, if rats became bored by sensory monotony, rats in a monotonous version of the scenario would show more arousal-seeking (e.g. exit-directed behaviour, jumping) and drowsy behaviour (e.g. standing still, yawning, task disengagement) than in a varied version. In the Monotony treatment, the digging material, reward flavour, and features of the cues remained constant in each presentation, whereas these changed throughout the Variety treatment. Behaviour was observed blind to treatment in a randomised order. Monotony significantly increased exit-directed behaviour compared with Variety, but no other treatment effects reached significance. Possible reasons for the relative lack of findings are discussed, including suggestions for future research. Here, sensory monotony during the task did not induce the full range of behaviours characterizing boredom, but it is of interest that it did increase exit-directed behaviour.
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spelling doaj-art-a0e4d9bb33d64808b67c9c6ce7e7339b2025-08-20T03:46:17ZengSpringerAnimal Cognition1435-94562025-07-0128111310.1007/s10071-025-01979-6Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variationCharlotte C. Burn0Ka Ho Timothy Ng1Matthew O. Parker2Department of Pathobiology and Population Sciences, Royal Veterinary CollegeDepartment of Pathobiology and Population Sciences, Royal Veterinary CollegeSurrey Sleep Research Centre, School of Biosciences, Faculty of Health and Medical Sciences, University of SurreyAbstract Evidence increasingly reveals that non-human animals in monotonous situations can show boredom-like states, distinctively manifesting as increases in both arousal-seeking, restless behaviour and low arousal, drowsy behaviour. However, task related boredom has been little investigated in animals, but could have implications for animal training efficacy, for animal welfare, and for modelling human task fatigue. We investigated whether varied sensory stimuli helped prevent boredom-like behaviour in a repetitive foraging scenario, compared with a monotonous equivalent. In a cross-over design, 20 rats searched pairs of containers for a small reward hidden within a digging material, with a new pair of containers presented every 2 min during a 20 min session. Multisensory cues distinguished the rewarded vs. non-rewarded containers. We hypothesized that, if rats became bored by sensory monotony, rats in a monotonous version of the scenario would show more arousal-seeking (e.g. exit-directed behaviour, jumping) and drowsy behaviour (e.g. standing still, yawning, task disengagement) than in a varied version. In the Monotony treatment, the digging material, reward flavour, and features of the cues remained constant in each presentation, whereas these changed throughout the Variety treatment. Behaviour was observed blind to treatment in a randomised order. Monotony significantly increased exit-directed behaviour compared with Variety, but no other treatment effects reached significance. Possible reasons for the relative lack of findings are discussed, including suggestions for future research. Here, sensory monotony during the task did not induce the full range of behaviours characterizing boredom, but it is of interest that it did increase exit-directed behaviour.https://doi.org/10.1007/s10071-025-01979-6Animal welfareBoredomCognitive engagementSensory stimulationTask fatigue
spellingShingle Charlotte C. Burn
Ka Ho Timothy Ng
Matthew O. Parker
Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
Animal Cognition
Animal welfare
Boredom
Cognitive engagement
Sensory stimulation
Task fatigue
title Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
title_full Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
title_fullStr Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
title_full_unstemmed Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
title_short Rat boredom-like behaviour in a monotonous versus a varied foraging task: effects of sensory variation
title_sort rat boredom like behaviour in a monotonous versus a varied foraging task effects of sensory variation
topic Animal welfare
Boredom
Cognitive engagement
Sensory stimulation
Task fatigue
url https://doi.org/10.1007/s10071-025-01979-6
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