Hopkins W D, Fowler L A
Division of Psychobiology, Yerkes Regional Primate Research Center, Emory University, Atlanta, Georgia 30322, USA.
Behav Neurosci. 1998 Feb;112(1):83-8. doi: 10.1037//0735-7044.112.1.83.
Lateralized changes in tympanic membrane (TM) temperature were assessed in chimpanzees. Subjects were engaged in 1 of 3 different cognitive tasks, including matching-to-sample, visual-spatial discrimination, and a motor task. During execution of each task, TM temperatures were taken from each ear over a 20-min time period. The TM temperatures at each time interval were subtracted from a baseline measure to assess relative change in blood flow. For the matching-to-sample and visual-spatial discrimination tasks, significant lateralized changes in TM temperature were found, with left-ear temperature increasing and right-ear temperature decreasing. No laterality effects were found for the motor or control tasks. These data provide the first evidence of laterality in physiological functioning in chimpanzees and suggest that transient asymmetries in cognitive functions are associated with changes in cerebral blood flow as assessed by TM temperature change.
研究人员对黑猩猩鼓膜（TM）温度的侧化变化进行了评估。实验对象参与了三种不同认知任务中的一种，包括样本匹配、视觉空间辨别和一项运动任务。在执行每项任务的过程中，在20分钟的时间段内从每只耳朵获取TM温度。从基线测量值中减去每个时间间隔的TM温度，以评估血流的相对变化。对于样本匹配和视觉空间辨别任务，发现TM温度存在显著的侧化变化，左耳温度升高，右耳温度降低。在运动或对照任务中未发现侧化效应。这些数据首次证明了黑猩猩生理功能的侧化，并表明认知功能的短暂不对称与通过TM温度变化评估的脑血流量变化有关。
