Lubow R E, Josman Z E
Department of Psychology, Tel Aviv University, Ramat Aviv, Israel.
J Child Psychol Psychiatry. 1993 Sep;34(6):959-73. doi: 10.1111/j.1469-7610.1993.tb01101.x.
Latent inhibition (LI), the retardation of associative learning as a function of prior stimulus exposure, is believed to reflect normal attentional processes. Previous research has demonstrated an attenuated LI effect in acute schizophrenics as well as normal subjects who rate high on schizotypal scales. The present study examined LI in two age groups (66.1 and 77.4 months) of hyperactive and normal children. The younger normal children exhibited LI while the older ones did not. Neither of the hyperactive groups displayed LI. The loss of LI in the hyperactive subjects was explained by proposing that these children are deficient in processing non-salient, irrelevant stimuli.
潜伏抑制（LI），即作为先前刺激暴露函数的联想学习迟缓，被认为反映了正常的注意力过程。先前的研究表明，急性精神分裂症患者以及在分裂型量表上得分较高的正常受试者中，LI效应减弱。本研究考察了多动儿童和正常儿童两个年龄组（66.1个月和77.4个月）的LI。年龄较小的正常儿童表现出LI，而年龄较大的儿童则没有。两个多动组均未表现出LI。多动受试者LI的丧失被解释为这些儿童在处理不突出、不相关刺激方面存在缺陷。
