Perceptual Learning in the Rat: Stimulus Differentiation or Latent Inhibition of Common Elements?

Preexposure to an unreinforced stimulus facilitates learning (perceptual learning) under some conditions, but it can have the opposite effect (latent inhibition) under other conditions. Researchers have suggested that perceptual learning depends on a change of context, whereas latent inhibition is usually context specific. The associative theory explains both phenomena within a single framework. The authors report 4 experiments that show that perceptual learning does not depend on a context change. The experiments suggest that latent inhibition, unlike perceptual learning, depends on passive exposure. Thus the results do not support the associative theory. They are more consistent with Gibson's stimulus-differentiation theory.     

高低创造性思维水平者定向遗忘效应的差异研究

采用单字法定向遗忘范式,考察远距离联想任务得分高低者在中性和负性词语定向遗忘效应上的差异,来探讨创造性思维水平高低与主动抑制的关系。实验采用2(高/低创造性思维水平)×2(中性/负性词汇)×2(记住/忘记指令)×2(2s/5s时间间隔)混合设计,发现高低创造力组,在材料不同呈现时间下,对不同情绪材料的定向遗忘效应分别不同。低创者在2s和5s以及高创者在5s时间间隔时,均对中性词语表现出定向遗忘效应,而对负性词汇没有表现出明显的定性遗忘效应。高创者在2s时间间隔下,对中性和负性词语均表现出定向遗忘效应。结果表明较短时间内高创者对负性情绪的主动抑制能力优于低创者。     

Inhibition in task switching: The reliability of the n − 2 repetition cost

The n???2 repetition cost seen in task switching is the effect of slower response times performing a recently completed task (e.g. an ABA sequence) compared to performing a task that was not recently completed (e.g. a CBA sequence). This cost is thought to reflect cognitive inhibition of task representations and as such, the n???2 repetition cost has begun to be used as an assessment of individual differences in inhibitory control; however, the reliability of this measure has not been investigated in a systematic manner. The current study addressed this important issue. Seventy-two participants performed three task switching paradigms; participants were also assessed on rumination traits and processing speed—measures of individual differences potentially modulating the n???2 repetition cost. We found significant n???2 repetition costs for each paradigm. However, split-half reliability tests revealed that this cost was not reliable at the individual-difference level. Neither rumination tendencies nor processing speed predicted this cost. We conclude that the n???2 repetition cost is not reliable as a measure of individual differences in inhibitory control.     

儿童行为抑制性与母亲教养行为：一项追踪研究

该研究采用纵向追踪的研究设计考察儿童的行为抑制性气质与母亲的教养行为之间的相互影响关系。104名儿童来自中国西部农村,第一次测查的平均年龄为45个月。通过录像观察编码的方式测量儿童的行为抑制性及母亲的教养行为,2年后对他们进行追踪。交叉滞后回归分析结果发现,儿童的行为抑制性对母亲的教养行为具有显著的预测作用,具体表现在对行为抑制性高的儿童,母亲在之后会表现出更多的接受性和指导性控制的教养行为。     

信念-愿望推理中的抑制加工

在Leslie的心理理论机制选择加工模型(ToMM-SP)理论的基础上,本研究探讨信念-愿望推理任务中抑制是如何加工的,并验证Leslie提出的两个抑制模型。采用三地点双重抑制任务,对216名4~6岁儿童实施两个实验。分别考察心理定势及三个地点公平性这两个因素对儿童选择偏好的影响。结果表明,两种因素都对儿童的表现有影响。消除了这两个因素的影响后,儿童的表现符合返回抑制模型的假说,即儿童在回避愿望的错误信念任务中的抑制加工是系列的。     

语境位置对不同认知方式个体歧义句歧义消解的影响

采用意义适合性判断任务,考察了语境位置对不同认知方式个体歧义句理解过程中抑制内部干扰的影响。结果发现：语境位置影响歧义句的歧义消解,对歧义句不适当意义的抑制作用方面,前语境优于后语境;在自然阅读的条件下,在句子加工的初始阶段,场独立个体能够更好的利用前语境信息抑制内部无关信息的干扰,而场依存个体在句子加工的初始阶段对前、后语境的阅读时间上不存在差异,而在句子加工的后期需用更多时间才能完成对内部干扰的抑制。     

Working memory and response inhibition in children and adolescents: age and organization issues

The aim of the present study was to examine the role of age in the organization of verbal working memory, visuospatial working memory and inhibition; specifically whether these constructs could be considered unitary or separate in children aged 7 to 12 years (n = 164) and in adolescents aged 13 to 16 years (n = 75) using a multi-group confirmatory factor analysis. Results suggested that verbal working memory, visuospatial working memory and inhibition improved from childhood to adolescence. However, improvement was not followed by a change in the organization of these components. Verbal working memory, visuospatial working memory and inhibition constituted separable but associated constructs in children and in adolescents.     

Two types of behavioral inhibition: Relations to effortful control and attention in school children

This study aimed to examine the relationship of two types of behavioral inhibition, social inhibition and nonsocial inhibition, to effortful control and attention in 7–9-year olds. Social and nonsocial inhibition and effortful control were assessed by questionnaires. The child version of the Attention Network Task was used to measure attention including alerting, orienting and executive attention. Results indicated that in girls, social inhibition was negatively related to effortful control and alerting, while nonsocial inhibition was positively related to orienting; there was an interaction between social and nonsocial inhibition in predicting executive attention in boys. Thus, it is of great significance to differentiate social and nonsocial inhibition when examining the association between behavioral inhibition and effortful control and attention in school-age children.     

Behavioral inhibition and triallelic genotyping of the serotonin transporter promoter (5-HTTLPR) polymorphism

To examine the genetic bases of the behavioral inhibition system (BIS) and the behavioral approach system (BAS), we evaluated the association between the BIS, the BAS, and a functional length polymorphism in the promoter of the serotonin transporter gene (5-HTTLPR) in an unscreened sample of undergraduates (N = 211); analyses were conducted using a two-variant (i.e., biallelic) genotyping and three-variant (i.e., triallelic) genotyping of the 5-HTTLPR polymorphism. People with one or two copies of the low-expressing alleles reported stronger endorsement of the BIS than people who were homozygous for the high-expressing alleles; this association was found for triallelic but not biallelic genotyping of the 5-HTTLPR polymorphism. There was no association between the 5-HTTLPR polymorphism and the BAS scales.