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Updated: Jun 23, 2026

Reversible Cooling-induced Deactivations to Study Cortical Contributions to Obstacle Memory in the Walking Cat

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Published on: December 11, 2017

Keep cool: memory is retained during hibernation in Alpine marmots.

L E Clemens¹, G Heldmaier, C Exner

¹Department of Animal Physiology, Philipps-Universität Marburg, Karl-von-Frisch Strasse 8, 35043 Marburg, Germany. marmot.laura@googlemail.com

Physiology & Behavior

|April 28, 2009

Summary

Hibernating Alpine marmots retain long-term memory after prolonged torpor. Learning and habituation behaviors remained intact, demonstrating that deep hibernation does not impair cognitive function in these animals.

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Minimizing Hypoxia in Hippocampal Slices from Adult and Aging Mice

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Published on: July 2, 2020

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Last Updated: Jun 23, 2026

Reversible Cooling-induced Deactivations to Study Cortical Contributions to Obstacle Memory in the Walking Cat

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Published on: December 11, 2017

Minimizing Hypoxia in Hippocampal Slices from Adult and Aging Mice

Minimizing Hypoxia in Hippocampal Slices from Adult and Aging Mice

Published on: July 2, 2020

Area of Science:

Neuroscience
Animal Behavior
Chronobiology

Background:

Hibernators undergo significant brain structural changes during deep torpor.
Synaptic alterations occur during hibernation, raising questions about memory consolidation.

Purpose of the Study:

To investigate the impact of hibernation on long-term memory in Alpine marmots (Marmota marmota).
To assess if learning and habituation are affected by prolonged periods of torpor.

Main Methods:

Operant conditioning tasks (jumping on boxes, walking through a tube) were used to test learning and memory.
Habituation to a novel environment via repeated open-field exposure was assessed.
Behavioral tests were conducted before and after a six-month hibernation period.

Main Results:

Marmots demonstrated stable performance in operant conditioning tasks after hibernation, indicating unimpaired learning and memory.
Habituation to a novel environment was preserved post-hibernation, with no significant change in exploratory behavior cessation.
Memory stability during the active season was less robust than post-hibernation memory.

Conclusions:

Long-term memory in Alpine marmots is unaffected by six months of deep hibernation.
Hibernation does not lead to a loss of learned behaviors or habituation in this species.
Brain changes during torpor do not compromise established long-term memories.