Western Michigan University, USA.
J Appl Behav Anal. 2009 Summer;42(2):225-41. doi: 10.1901/jaba.2009.42-225.
Evidence to support stimulus-stimulus pairing (SSP) in speech acquisition is less than robust, calling into question the ability of SSP to reliably establish automatically reinforcing properties of speech and limiting the procedure's clinical utility for increasing vocalizations. We evaluated the effects of a modified SSP procedure on low-frequency within-session vocalizations that were further strengthened through programmed reinforcement. Procedural modifications (e.g., interspersed paired and unpaired trials) were designed to increase stimulus salience during SSP. All 3 participants, preschoolers with autism, showed differential increases of target over nontarget vocal responses during SSP. Results suggested an automatic reinforcement effect of SSP, although alternative interpretations are discussed, and suggestions are made for future research to determine the utility of SSP as a clinical intervention for speech-delayed children.
支持语音习得中刺激-刺激配对(SSP)的证据并不充分,这使得 SSP 可靠地建立语音自动强化属性的能力受到质疑,并限制了该程序在增加发声方面的临床应用。我们评估了一种修改后的 SSP 程序对低频会话内发声的影响,这些发声通过有计划的强化进一步增强。程序修改(例如,穿插配对和非配对试验)旨在增加 SSP 期间刺激的显著性。所有 3 名参与者,即自闭症的学龄前儿童,在 SSP 期间表现出目标发声相对于非目标发声的差异增加。结果表明 SSP 具有自动强化效果,尽管也讨论了其他解释,并提出了未来研究的建议,以确定 SSP 作为言语延迟儿童临床干预的效用。