A longditudinal study of mother-young teraction in the rat: the effects of infantile stimulation, diurnal rhythms, and pup maturation.
A longditudinal study of mother-young teraction in the rat: the effects of infantile stimulation, diurnal rhythms, and pup maturation.
复制标题
大鼠母幼互动的长期研究：婴儿刺激、昼夜节律和幼崽成熟的影响。
作者：
M. H. Lee;D. Williams
从出生到断奶，每天两次，对幼仔和母亲进行处理（LH），仅由母亲处理（MH），或不予打扰（NH）。整个时期都对他们进行了观察。每小时进行一次记录，每次治疗前一小时和治疗后一小时也以 3 分钟为间隔进行记录。对昼夜节律和成熟变化进行了分类。治疗与这些因素相互作用；总体而言，从哺乳行为、筑巢和幼崽环境质量来衡量，它对孕产妇护理质量产生了有害影响。一些变化，尤其是筑巢方面的变化，是 LH 所特有的，但总体而言，LH 和 MH 表现出相似的趋势，其中对 MH 的影响更为显着。由于成人旷场测试显示 LH 后代的行走能力显着高于 MH 或 NH，因此没有发现明确的证据支持母体介导婴儿刺激。
Rat litters had either pups and mother handled (LH), mother only handled (MH), or were left undisturbed (NH), in two sessions per day from birth to weaning. They were observed throughout this period. Recordings were made hourly, and also at 3 minute intervals for an hour before and an hour after each treatment. Diurnal rhythms and maturational changes were catalogued. Treatment interacted with these factors; overall it had deleterious consequences for the quality of maternal care as measured by nursing behaviour, nest building, and the quality of the pup environment. Some changes, notably in nest building, were specific to LH, but generally LH and MH showed similar trends with more marked effects in MH. As adult open-field testing showed LH offspring to ambulate significantly more than MH or NH no clear support is found for maternal mediation of infantile stimulation.