Rodríguez Gabriel, Márquez Raúl, Gil Marta, Alonso Gumersinda, Hall Geoffrey
Facultad de Psicología, Universidad del País Vasco.
Department of Psychology, University of York.
J Exp Psychol Anim Learn Cogn. 2014 Oct;40(4):425-30. doi: 10.1037/xan0000035. Epub 2014 Aug 4.
According to a recent theory (Hall & Rodriguez, 2010), the latent inhibition produced by nonreinforced exposure to a target stimulus (B) will be deepened by subsequent exposure of that stimulus in compound with another (AB). This effect of compound exposure is taken to depend on the addition of a novel A to the familiar B and is not predicted for equivalent preexposure on which AB trials precede the A trials. This prediction was tested in 2 experiments using rats. Experiment 1 used an aversive procedure with flavors as the stimuli; Experiment 2 used an appetitive procedure with visual and auditory stimuli. In both, we found that conditioning with B as the conditioned stimulus proceeded more slowly (i.e., latent inhibition was greater) in subjects given the B-AB sequence in preexposure than in subjects given the AB-B sequence.
根据最近的一种理论（霍尔和罗德里格斯，2010年），对目标刺激（B）进行非强化暴露所产生的潜伏抑制，会因该刺激随后与另一种刺激（AB）复合呈现而加深。复合暴露的这种效应被认为取决于将新的A添加到熟悉的B上，并且对于在A试验之前进行AB试验的等效预暴露情况没有这种预测。在两项使用大鼠的实验中对这一预测进行了检验。实验1采用厌恶程序，以味道作为刺激；实验2采用奖赏程序，以视觉和听觉刺激作为刺激。在这两项实验中，我们都发现，在预暴露中接受B-AB序列的受试动物，以B作为条件刺激进行条件作用的过程比接受AB-B序列的受试动物更慢（即潜伏抑制更强）。
