Huddling by rat pups: Ontogeny of individual and group behavior
Huddling by rat pups: Ontogeny of individual and group behavior
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DOI：
10.1002/dev.20190
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发表时间：
2007-01-01
影响因子：
2.2
通讯作者：
Alberts, Jeffrey R.
中科院分区：
文献类型：
--
作者：
Alberts, Jeffrey R.
对大鼠行为发育的完整描述必须包括个体和群体行为的个体发生，然而，我们积累的大多数知识都与个体发生有关。群体行为及其发展在幼鼠的拥挤行为中很容易看出。鼠群是一个具有不同于个体的特征和能力的个体，鼠群是获得对物种气味的嗅觉偏好的自然环境。嗅觉学习在一个蜷缩涉及热和触觉刺激从母亲的身体，但令人惊讶的是，没有奖励的吸吮或牛奶转移虽然有完整的发展连续性的蜷缩行为的感官控制蜷缩的变化显着在第一个2周的产后生活。蜷缩行为最初由热线索控制（“生理蜷缩”），然后由嗅觉刺激控制（“子代蜷缩”）。用计算方法成功地模拟了复杂的群体挤作一团的行为。群体行为产生于完全由个体行为规则指导的个体互动（群体行为没有规则）。自主活动/不活动的三个简单规则可以产生聚集体形成的模式显示组的7天大的幼崽，但不是由10天大的。到第10天明显的发育变化需要增加一条规则，即每个个体受相邻幼仔活动状态的影响。群体行为对第10天中央催产素的操纵有反应，但在第7天没有反应。(c)2006 Wiley-Periodicals，Inc.
A full account of behavioral development in rats must include the ontogeny of both individual and group behavior Most of our accumulated knowledge, however, pertains to individual ontogenesis. Group behavior and its development are readily seen in the huddling behavior of rat pups. A rat huddle is an entity with characteristics and capabilities distinct from those of the individuals that comprise it. The huddle is a natural context for acquiring olfactory preferences for species odors. Olfactory learning in a huddle involves thermal and tactile stimulation from the mother's body but, surprisingly, not the rewards of suckling or of milk transfer Although there is complete developmental continuity of huddling behavior the sensory controls of huddling change dramatically during the first 2 weeks of postnatal life. Huddling behavior is initially controlled by thermal cues ("physiological huddling") and then becomes dominated by olfactory stimuli ('filial huddling"). The complex group behavior of huddling was modeled successfully with computational methods. Group behavior emerges from individual interactions guided entirely by rules of individual behavior (no rules for group behavior). Three simple rules of autonomous activity/inactivity can spawn the patterns of aggregon formation displayed by groups of 7-day-old pups, but not by 10-day-olds. The developmental change evident by Day 10 requires adding a rule by which each individual is affected by the activity state of adjacent pups. Group behavior responded to manipulations of central oxytocin on Day 10, but not on Day 7. (c) 2006 Wiley-Periodicals, Inc.