Kirsch P, Boucsein W, Baltissen R
University of Wuppertal, Germany.
Integr Physiol Behav Sci. 1993 Apr-Jun;28(2):154-7. doi: 10.1007/BF02691219.
Most investigations of information processing in human Pavlovian autonomic conditioning focussed on the role of awareness of the contingency of the conditioned stimulus (CS) and the unconditioned stimulus (UCS). While in these studies only the qualitative information of the CS (UCS occurring vs not occurring) was varied, the present experiment was designed to vary the quantitative information of the CS. In a differential conditioning paradigm, using a letter reproduction task as nonaversive UCS, electrodermal responses to different degrees of CS information content were investigated. Twenty subjects experienced two different conditions in a within subject design. In one condition only the number of letters used in the following UCS was presented as CS+, while in the other condition the CS already contained the whole UCS information. Both conditions led to significant differences in magnitudes of electrodermal responding.
大多数关于人类巴甫洛夫自主条件反射中信息处理的研究都集中在对条件刺激（CS）和无条件刺激（UCS）之间关联性的意识作用上。虽然在这些研究中，仅改变了CS的定性信息（UCS出现与否），但本实验旨在改变CS的定量信息。在一个辨别性条件反射范式中，使用字母复制任务作为无厌恶的UCS，研究了对不同程度CS信息内容的皮肤电反应。20名受试者在被试内设计中经历了两种不同条件。在一种条件下，仅将随后UCS中使用的字母数量呈现为CS+，而在另一种条件下，CS已经包含了整个UCS信息。两种条件都导致了皮肤电反应幅度的显著差异。
