| Autor: |
Ferraro, Douglas P., Schoenfeld, William N., Snapper, Arthur G. |
| Zdroj: |
Psychological Reports; June 1967, Vol. 20 Issue: 3 p795-802, 8p |
| Abstrakt: |
After training on a regular reinforcement procedure in which a lever-pressing response produced milk reward, each of 16 groups of water-deprived rats was exposed to a different concurrent contingency of regular reinforcement and random interval punishment for 20 experimental sessions. Under the intermittent punishment schedules used, the programmed probability and frequency of response-contingent electric shock were independently manipulated. Autopsies revealed (a) that changes in adrenal weights were about the same (independent of the amount of shock) over a wide range of punishment frequencies and (b) that the amount of adrenal hypertrophy was a decreasing function of shock probability over a range of probabilities from 0.0625 to 1.00. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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