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Aggression as positive reinforcement...

May, Michael E.

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Aggression as positive reinforcement in mice.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Aggression as positive reinforcement in mice./
作者:	May, Michael E.
面頁冊數:	86 p.
附註:	Adviser: Craig H. Kennedy.
Contained By:	Dissertation Abstracts International69-01A.
標題:	Education, Special. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3300689
ISBN:	9780549456124

Aggression as positive reinforcement in mice.
May, Michael E.

Aggression as positive reinforcement in mice. - 86 p.

Adviser: Craig H. Kennedy.

Thesis (Ph.D.)--Vanderbilt University, 2007.

There is evidence suggesting aggression may be a positively reinforcing stimulus in many species. However, few studies have directly tested aggression as a positive reinforcer in mice. Four experiments were conducted in the current analysis using male Swiss CFW albino mice in a resident-intruder model of aggression as a positive reinforcer A nose poke response on an operant conditioning panel was reinforced under fixed-ratio (FR 8), fixed-interval (FI 5 min), progressive ratio (PR 2), and differential reinforcement of low rate behavior reinforcement schedules (DRL 40s and DRL 80s). In the FR experiment, results indicated nose pokes were maintained by aggression and extinguished when the aggression contingency was removed. Inter-response times were brief, resulting in rapid schedule completion. In the FI experiment, results indicated nose pokes were maintained by aggression and occurred more frequently as time elapsed. Nose pokes were extinguished when the aggression contingency was removed. In the PR experiment, results indicated nose pokes were maintained by aggression. Post-reinforcement pauses increased as the ratio requirement increased. Responding was extinguished when the aggression contingency was removed. In the DRL experiment, results indicated the nose poke rate decreased, while the proportional distributions of inter-response times and post-reinforcement pauses shifted rightward as the DRL interval schedule increased. However, most responses occurred before the minimum IRT interval elapsed, suggesting weak temporal control of behavior. Overall, the findings suggest aggression can be positively reinforcing for nose poke responses in mice on ratio- and time-based reinforcement schedules.

ISBN: 9780549456124Subjects--Topical Terms:

606639
Education, Special.

Aggression as positive reinforcement in mice.
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