Frankel F, Freeman B J, Ritvo E, Pardo R
J Autism Child Schizophr. 1978 Dec;8(4):389-94. doi: 10.1007/BF01538044.
Two groups of three autistic children, equated for chronological age but differing in IQ and performance MA, were observed for 20-minute sessions. Total duration of time subjects engaged in stereotyped behavior was recorded for each minute. During minutes 6--15, subjects were provided with either minimal or high environmental stimulation. High environmental stimulation was found to increase the mean duration of time the low-IQ group engaged in stereotyped behavior but to decrease the duration for the high-IQ group. The theoretical implications are discussed.
两组各有三名自闭症儿童，他们的实际年龄相同，但智商和表现性心理年龄不同，对其进行了20分钟的观察。每分钟记录下受试者进行刻板行为的总时长。在第6至15分钟期间，为受试者提供了最少或高强度的环境刺激。结果发现，高强度环境刺激会增加低智商组进行刻板行为的平均时长，但会减少高智商组的时长。本文讨论了其中的理论意义。
