Auditory-evoked brainstem responses in the torpid deermouse

Author(s): Thodi, C., Senturia, J. B.

Journal/Book: Physiol Behav. 1996; 59: The Boulevard, Langford Lane, Kidlington, Oxford, England OX5 1GB. Pergamon-Elsevier Science Ltd. 189-194.

Abstract: This study examined auditory-evoked brainstem responses (ABR) in the deermouse (Peromyscus maniculatus) during torpor and arousal. The ABR of the euthermic deermouse consisted of five waves occurring in a time frame of 10 ms. During torpor, ABR wave I could be elicited at slow, but not fast stimulation rates indicating variability in neural activity along the auditory pathway. Arousal was heralded by the appearance of all the components of the ABR evoked in response to both slow and fast click rates signaling functional restoration of auditory neural activity during this phase.

Note: Article B Katbamna, Western Michigan Univ, Dept Speech Pathol & Audiol, Kalamazoo, MI 49008 USA

Keyword(s): ABR; torpor; deermice; STEM RESPONSES; ACOUSTIC RESPONSE; HYPOTHERMIA; ORIGINS; CAT

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