Avoidance learning at two levels of shock in rats receiving MSH
| Autor: | Abba J. Kastin, Lois O. Stratton |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
endocrine system
medicine.medical_specialty animal structures integumentary system Endocrine and Autonomic Systems Surgery Behavioral Neuroscience Endocrinology Avoidance learning Emotionality Internal medicine Shock (circulatory) Shuttle box medicine Defecation medicine.symptom Psychology hormones hormone substitutes and hormone antagonists |
| Zdroj: | Hormones and Behavior. 5:149-155 |
| ISSN: | 0018-506X |
| DOI: | 10.1016/0018-506x(74)90039-7 |
| Popis: | Rats receiving MSH or diluent were trained in a two-way shuttle box to avoid shock presented at two levels of intensity. At the low level MSH improved acquisition; at the high level rats given MSH tended to perform more poorly, but were not statistically different from controls. No differences were found in measures of activity or excitability, but higher defecation rates, which may indicate more emotionality, were found in groups receiving high levels of current and in groups receiving MSH. The study suggests that MSH may facilitate learning at low, but not at high, levels of shock. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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