A specialization of taste aversion learning during suckling and its weaning-associated transformation.
A specialization of taste aversion learning during suckling and its weaning-associated transformation.
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哺乳期间味觉厌恶学习及其与断奶相关的转变的专业化。
DOI：
10.1002/dev.420170605
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发表时间：
1984
影响因子：
2.2
通讯作者：
Alberts,JR
中科院分区：
文献类型：
--
作者：
Gubernick,DJ;Alberts,JR
在个体发育过程中，晚期哺乳动物通过不同的生态位前进，相应地需要不同的适应策略。我们认为学习的个体发育适应的一个重要特征，并考虑在此框架下的收购和表达的味觉厌恶学习护理。15日龄断奶前的幼鼠在哺乳时无法获得条件性味觉厌恶，而20日龄断奶的幼鼠在哺乳时很容易学习味觉厌恶（Martin & Alberts，1979）。味觉厌恶学习的发展出现，而护理与减少母乳供应和幼鼠的过渡到固体食物的饮食。我们认为，哺乳时学习的个体发育转变是断奶大鼠的一种与喂养相关的适应策略，并测试了从这一观点得出的wot预测：（1）延迟断奶可能推迟与哺乳相关的味觉厌恶的获得或表达，以及（2）允许断奶的条件（例如，获得替代食物来源）可能诱导获得或表达这种味觉厌恶。这两个预测都得到了证实。
During ontogenesis, altricial mammals advance through different ecological niches with require correspondingly different adaptive strategies. We view learning as an important feature of ontogenetic adaptations and consider the acquisition and expression of taste aversion learning during nursing with in this framework. Fifteeen‐day‐old preweanling rat pups fail to acquire conditioned taste aversions while nursing, whereas 20‐day‐old weanlings readily learn flavor aversions while suckling (Martin & Alberts, 1979). The developmental emergence of taste aversion learning while nursing coincides with reduction in maternal milk supply and the rat pup's transition to a solid food diet. We considered the ontogenetic transformation of learning while nursing as a feeding‐relaated adaptive strategy of the weanling rat and tested wot predictions derived from this view: (1) delayed weaning might postpone acquisition or expression of suckling‐related taste aversions and (2) conditions that permit weaning (e.g., acess to alternate food sources) might induce acquisition or expression of such taste aversions. Both predictions were confirmed.