Akins C K, Domjan M
Department of Psychology, University of Kentucky, Lexington 40506, USA.
Q J Exp Psychol B. 1996 Nov;49(4):346-56. doi: 10.1080/713932638.
In a trace conditioning procedure, subjects were presented with a 30-sec conditioned stimulus (CS) followed by a 30-sec trace interval. Delayed conditioning consisted of a 60-sec CS presentation followed by an unconditioned stimulus (US). Although conditioning developed with both procedures, the topography of the conditioned response differed. Sexual conditioned approach was evident in all of the subjects during the presentation of the CS. Trace-conditioned subjects moved away from the area where the CS had been presented during the trace interval but remained closer to the CS location than did an unpaired control. This reduction in the spatial specificity of the conditioned response was interpreted from a behaviour systems perspective. The trace interval presumably increased the perceived separation between the CS and the US and therefore elicited conditioned behaviour less specifically directed towards the CS.
在一项痕迹条件反射程序中，向受试者呈现30秒的条件刺激（CS），随后是30秒的痕迹间隔。延迟条件反射包括60秒的CS呈现，随后是无条件刺激（US）。尽管两种程序都能形成条件反射，但条件反应的表现形式有所不同。在CS呈现期间，所有受试者都出现了性条件趋近行为。痕迹条件反射的受试者在痕迹间隔期间会远离CS呈现的区域，但比未配对的对照组更靠近CS的位置。从行为系统的角度对条件反应空间特异性的这种降低进行了解释。痕迹间隔可能增加了CS和US之间的感知间隔，因此引发的条件行为对CS的指向性降低。
