New England Center for Children, Southborough, Massachusetts 01772, USA.
J Appl Behav Anal. 2012 Summer;45(2):241-50. doi: 10.1901/jaba.2012.45-241.
Five individuals with autism or other developmental disabilities participated in paired-stimulus preference assessments during repeated baseline probes. All subjects initially showed a pronounced bias by typically selecting the stimulus placed in either the left or right position. Biased responding for 3 subjects was eliminated when training trials were conducted in which a stimulus of known lesser quality was presented as one of the choices. Reinforcer-quality training was unsuccessful for 2 subjects, as was a condition in which reinforcer magnitude was modified to favor unbiased responding. These subjects' biased responding was eliminated only when a correction procedure (repetition of error trials) was implemented.
五名自闭症或其他发育障碍患者在重复基线探测期间参与了配对刺激偏好评估。所有受试者最初表现出明显的偏向，通常选择放置在左侧或右侧的刺激。当进行训练试验时，其中一个选择是呈现已知质量较低的刺激，3 名受试者的偏向反应就会消除。对于 2 名受试者，强化质量训练和改变强化物大小以促进无偏向反应的条件都不成功。只有当实施纠正程序（重复错误试验）时，这些受试者的偏向反应才会消除。
