Poulson C L
Department of Psychology, Queens College/City University of New York, Flushing 11367.
Am J Ment Retard. 1988 Jul;93(1):57-63.
Reinforcement control over vocalization rates of infants with Down syndrome was evaluated; elicitation of vocalizations by social stimulation was controlled. Parents of three infants (2.7, 5, and 8.2 months old) provided social reinforcement under two schedules: continuous reinforcement for vocalization (CRF) and differential reinforcement of other-than-vocalization (DRO). All infants produced systematically higher vocalization rates during CRF, even though the amount of social stimulation during DRO was equal to or greater than the amount provided during CRF. The results replicated findings with normally developing infants and support a contingent-stimulation model of intervention for infant vocal communication.
对唐氏综合征婴儿发声率的强化控制进行了评估；通过社会刺激引发发声的情况得到了控制。三名婴儿（年龄分别为2.7个月、5个月和8.2个月）的父母在两种安排下提供社会强化：对发声的连续强化（CRF）和对非发声行为的差别强化（DRO）。所有婴儿在CRF期间的发声率都系统性地更高，尽管在DRO期间的社会刺激量等于或大于CRF期间提供的刺激量。这些结果重复了对正常发育婴儿的研究发现，并支持了一种针对婴儿语音交流的偶然刺激干预模型。
