胎鼠（褐家鼠）的周期性运动活动。

Cyclic motor activity in the fetal rat (Rattus norvegicus).

作者信息

Smotherman William P, Robinson Scott R, Robertson Steven S

机构信息

Oregon State U, Lab for Psychobiological Research, Corvallis.

出版信息

J Comp Psychol. 1988 Mar;102(1):78-82. doi: 10.1037/0735-7036.102.1.78.

DOI:10.1037/0735-7036.102.1.78

PMID:3365946

Abstract

Rat fetuses were observed on Day 20 of gestation using a technique that permits direct observation of fetal behavior. The resulting time series was analyzed to assess cyclic organization in fetal movement. Fetal activity did not occur randomly but showed significant cyclic variation with a mean frequency of 0.61 cycle/min. This finding agrees with studies of human fetuses, which also exhibit short-period cyclicity in motor activity.

摘要

在妊娠第20天，使用一种允许直接观察胎儿行为的技术对大鼠胎儿进行观察。对由此产生的时间序列进行分析，以评估胎儿运动的周期性组织。胎儿活动并非随机发生，而是呈现出显著的周期性变化，平均频率为0.61次/分钟。这一发现与对人类胎儿的研究结果一致，人类胎儿在运动活动中也表现出短周期的周期性。