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RESEARCH PRODUCT
Effect of pinealectomy and circadian rhythm on avoidance behavior in the male rat.
A. RomanJ.m. Viña GinerF. PallardoP. VillanuevaM.d. Catalásubject
Malemedicine.medical_specialtySh groupsBrain Mappinggenetic structuresLightPeriod (gene)medicine.medical_treatmentPinealectomyExperimental and Cognitive PsychologyBiologyPineal GlandCircadian RhythmRatsBehavioral NeuroscienceEndocrinologyInternal medicineMale ratsmedicineAvoidance LearningExploratory BehaviorAnimalsDaylightCircadian rhythmdescription
Male adult albino rats were divided into six groups: two pinealectomized (Px); two sham-operated (Sh) and two serving as controls (C). Half of these groups were studied in daylight and the other half at night. The animals were open-field tested and then conditioned by the avoidance behavior test in the appropriate light period. No differences were observed among the groups when they were conditioned in the dark; however, the Px were conditioned significantly more rapidly than Sh or C in daylight. Intragroup comparisons between night/day conditioning showed them to be similar in Px but more rapid at night in both Sh and C. The Sh group is unique and not comparable to controls.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-03-01 | Physiologybehavior |