ROUTINE FORMATION AND FLEXIBILITY IN SOCIAL AND NONSOCIAL BEHAVIOR OF AGGRESSIVE AND NONAGGRESSIVE MALE-MICE
ROUTINE FORMATION AND FLEXIBILITY IN SOCIAL AND NONSOCIAL BEHAVIOR OF AGGRESSIVE AND NONAGGRESSIVE MALE-MICE
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DOI：
10.1163/156853990x00185
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发表时间：
1990-03-01
期刊：
影响因子：
1.3
通讯作者：
VANOORTMERSSEN, GA
中科院分区：
文献类型：
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作者：
BENUS, RF;DENDAAS, S;VANOORTMERSSEN, GA
为了研究攻击性与常规行为之间的关系，我们测量了双向选择系雄性小鼠攻击潜伏期对社会和非社会环境变化的反应。在一个非社会情境中，常规行为的程度是在一个y形迷宫中测量的，在这个迷宫中，两只手臂中只有一只可以进入食物隔间。在响应被阻塞的手臂反转时所犯的错误数量被作为常规形成程度的指标。短攻击潜伏期（SAL）系的雄性比长攻击潜伏期（LAL）系的小鼠犯了更多的错误，因此在它们的表现中更像常规。然而，LAL系的雄性小鼠（即攻击性的LAL小鼠）具有较短的攻击潜伏期，结果表明它们的行为具有灵活性；这种反应与非攻击性LAL雄性的反应相似。在社会情境下，用SAL和攻击性LAL小鼠研究攻击行为的常规形成。男性被给予不同数量的男性对手的经验，之后他们自己的女性被介绍为对手。与雄性入侵者相处的时间越长，萨尔雄性随后攻击雌性的次数就越多。相比之下，LAL小鼠适当地改变了它们对雌性对手的行为。因此，SAL小鼠的攻击行为变得常规化，而LAL雄性小鼠的攻击行为则保持灵活。结论是，攻击延迟的选择通常与常规行为的选择一致，这表明这两个因素受到许多相同基因的影响。关于LAL系的攻击性雄性表现出灵活的行为这一事实，可以提出，随着攻击延迟的表型选择，实际上已经选择了一种决定行为组织（常规型与灵活型）的机制。
To investigate the relationship between aggression and routine-like behaviour the response of male mice of bidirectionally selected lines for attack latency to a change in the social and non-social environment has been measured. In a non-social situation the extent of routine-like behaviour was measured in a Y-maze in which only one of the two arms gave access to the food compartments. The number of errors made in response to reversal of the arm that was blocked was taken as indicator for the degree of routine formation. Males of the short attack latency (SAL) line made significantly more errors, and hence were more routine-like in their performance, than mice of the long attack latency (LAL) line. Males of the LAL line that nevertheless had short attack latencies (i.e. aggressive LAL mice) turned out to the flexible in their behaviour; the response was similar to that of the non-aggressive LAL males. In a social situation SAL and aggressive LAL mice were used to investigate routine formation in attacking behaviour. The males were given different amounts of experience with male opponents after which their own female was introduced as opponent. The more extended the experience with male intruders was, the more SAL males subsequently attacked their female. In contrast, LAL mice appropriately changed their behaviour towards the female opponent. Thus, the attacking behaviour of SAL mice gets routine-like, whereas that of LAL males remains flexible. It is concluded that selection for attack latency generally coincides with selection for routine-like behaviour, suggesting that these two factors are influenced by many of the same genes. Regarding the fact that aggressive males of the LAL line show flexible behaviour, it may be proposed that with the phenotypic selection for attack latency there has in fact been selected for a mechanism that determines the organization (routine-like vs flexible) of behaviour.