Accession Number : AD0779154

Title :   Habituation, Its Retention, and Dishabituation of Multiple Behaviors in Chinchillas.

Descriptive Note : Interim rept.,

Corporate Author : ARMY MEDICAL RESEARCH LAB FORT KNOX KY

Personal Author(s) : Leibrecht,Bruce C. ; Kemmerer,William S.

Report Date : 26 MAR 1974

Pagination or Media Count : 14

Abstract : Habituation and dishabituation were studied in ten adult chinchillas. Head-shake responses (HSRs), basal respiration, and struggle activity during restraint all displayed substantial within-session decrement which was retained significantly after 24 hr. The HSR exhibited short-term sensitization as well as long-term habituation. The latter occurred in spite of the fact that no overhabituation was allowed. An extraneous noise-impact stimulus produced dishabituation of basal respiration and struggle activity but not HSRs, suggesting differential sensitivity to concurrent stimulation between response systems. It was concluded that long-term habituation of the chinchilla's HSR is not dependent upon overhabituation effects. The combined results indicate that habituation occurred independently in the different response systems and, thus, support a multiprocess interpretation of habituation. (Modified author abstract)

Descriptors :   *Rodents, *Conditioning(Learning), Restraint, Response(Biology), Stress(Physiology), Stress(Psychology), Stimulation(Physiology), Experimental data, Respiration, Laboratory equipment

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE