How do 8‐month‐old infants recognize causality in object motion and that in human action?1

Abstract: In Experiment 1, 8‐month‐old infants were first habituated to the event in which a moving object collided with another behind an occluder, then they were shown the two test events with no occluder: the contact event, in which the two objects actually collided, and the non‐contact event, in which the second object started to move without contact with the first. The infants looked at both events for an equal amount of time. In Experiment 2, in which the first object was a human actor, however, infants looked at the non‐contact event reliably longer than the contact event. In Experiment 3, in which both objects were human actors stood face‐to‐back, infants looked at the non‐contact event longer, whereas in Experiment 4, in which human actors faced toward each other, infants looked at both events equally. In Experiment 5, in which the first actor told the second to go, 10‐month‐old infants looked at both events for an equal amount of time. These results suggest that 8‐ and 10‐month‐old infants appreciate different causal principles between objects and humans, and that, in doing this, they may acknowledge the possibility of communication between humans.     

Multiple causal pathways in attention-deficit/hyperactivity disorder – Do emerging executive and motivational deviations precede symptom development?

The multiple causal pathways model on the etiology of attention-deficit/hyperactivity disorder (ADHD) is well established. However, developmental implications of the model are not yet sufficiently analyzed. The model implies that critical neural and neuropsychological deviations from normative development precede secondarily developing ADHD symptoms. Cognitive, “cool” inhibitory control (CIC) and reward-related, “hot” functions (RRF) are regarded as neuropsychological basic deficits that indicate independent causal pathways. Both functions involve top-down control networks that undergo major normative developmental changes in the preschool period. We formalized the following assumptions in a path model: (a) CIC and RRF predict change in ADHD symptoms in the preschool period, (b) the reverse is not true, and (c) CIC and RRF independently contribute to this prediction. A community-based sample of 125 (71 boys) preschoolers was assessed at at age 4 and 5 years. At each assessment wave, CIC and RRF were measured by a battery of age-appropriate valid tasks. ADHD symptoms were measured by a clinical parent interview. Evaluation of model fit using manifest maximum likelihood parameter estimation clearly supported the hypothesized path model while controlling for gender of child and maternal education level. Thus, regarding the basic deficits of CIC and RRF, the results add evidence on the developmental implications of the multiple causal pathways model. Our findings point to the potential significance of these early emerging characteristics as indicators of risk and as targets for preventive interventions.     

儿童在因果知识领域内的选择性学习

儿童的选择性学习是目前认知发展领域的热点问题。儿童在因果知识领域内的选择性学习(即选择性因果学习)对于回答儿童如何获取知识这个经典问题具有重要意义。儿童的选择性因果学习表现在对他人解释的辨别、评估与采纳上。他们会主动向可靠的信息提供者寻求解释, 并在接收回答后表现出选择性跟进反应。对于他人的回答, 年幼儿童不仅能根据言语线索辨别出解释性陈述, 还能依据解释的结构特征选择更好的陈述加以采纳, 年长儿童甚至可以从不同模式的解释中灵活地学习更适宜的因果知识。未来研究应深入关注解释的其它特征在儿童选择性因果学习中的作用, 进一步探讨选择性因果学习的认知机制。     

主人公的动机水平对句子理解中心理模拟的影响

通过两个实验, 考察了主人公的动机水平对句子理解中读者的心理模拟的影响。实验1采用移动窗口技术, 记录读者阅读句子中目的地词语的时间; 实验2采用视觉情景眼动范式, 主试播放描述运动的句子, 同时呈现相应的情境图片, 记录读者扫描图片中主人公、路径和目的地的时间。实验结果表明：(1)主人公的动机水平影响读者对目的地词语的阅读时间, 主人公的动机水平越高, 读者的阅读时间就越短; (2)读者对情景图片的扫描受主人公的动机水平影响, 主人公的动机水平越高, 读者对路径区域的扫描时间就越短, 对目的地区域的扫描时间就越长。两个实验均表明, 在句子的实时加工中, 读者可以通过再入情境, 遵循先内后外的顺序, 先模拟主人公的动机水平, 继而模拟主人公的动作, 从而影响对句子的注视和理解。研究结果支持语言加工的具身认知观。     

汉语确定性无界否定句模拟加工的时间进程

以往关于否定句理解的心理模拟过程是一步完成的还是两步完成的, 结果并不一致, 这与各个研究使用的实验材料类型有关。本研究以汉语确定性无界否定句为研究对象, 采用句-图匹配范式和2(句子类型：汉语确定性无界肯定句和汉语确定性无界否定句) × 2 (图片描绘事物状态与句子描述的事物状态的匹配类型：匹配与不匹配)被试内实验设计, 以对图片判断的反应时和正确率为指标, 探讨其理解的早期(250 ms)、中期(750 ms)和晚期(1500 ms)的心理模拟过程。研究结果表明：确定性无界否定句理解的心理模拟是分两步进行的, 首先模拟的是否定句的被否定状态, 随着加工时间的推进, 完成了对确定性无界否定句的第二步模拟即对实际状态的模拟。但是, 比其他类型否定句的模拟过程所用的时间要短, 即在阅读理解的中期就完成了心理模拟。     

Causal Models Drive Preference between Drugs that Treat a Focal versus Multiple Symptoms

This research examines the effects of causal beliefs on drug preference. In three studies, 374 undergraduate participants imagined that they suffered from a focal symptom and then indicated their preference between a drug claiming to treat only the focal symptom (single treatment) and a drug claiming to treat the focal symptom and a nonfocal symptom (dual treatment) they thought resulted from a common‐cause or from a different cause. Participants who thought that the symptoms resulted from different causes significantly preferred the single treatment drug more and the dual treatment drug less than participants who thought the symptoms resulted from a common‐cause. Process analysis yielded a significant mediation effect. Specifically, an individual's causal model determines preference by affecting the estimates of the potential gain and loss associated with using each drug. Participants who held a common‐cause model concerning the source of the symptoms thought they would be more likely to need the nonfocal treatment provided by the dual treatment drug and less likely to suffer from side effects when taking this drug, than those with a different‐cause model. The results demonstrate the influence of causal structure on judgment and choice. © 2017 The Authors Journal of Behavioral Decision Making Published by John Wiley & Sons Ltd.     

Culture and Causal Cognition

East Asian and American causal reasoning differs significantly. East Asians understand behavior in terms of complex interactions between dispositions of the person or other object and contextual factors, whereas Americans often view social behavior primarily as the direct unfolding of dispositions. These culturally differing causal theories seem to be rooted in more pervasive, culture-specific mentalities in East Asia and the West. The Western mentality is analytic, focusing attention on the object, categorizing it by reference to its attributes, and ascribing causality based on rules about it. The East Asian mentality is holistic, focusing attention on the field in which the object is located and ascribing causality by reference to the relationship between the object and the field.     

句法结构和动词重复对汉语句子口语产生中句法启动效应的影响

研究中采用启动范式和图片描述任务, 利用句法选择比率和句子产生潜伏期的两个指标, 考察了启动句句法结构、动词是否相同和延时对汉语口语句子产生中句法启动效应的影响。结果发现在选择比率上, 句法结构产生的启动效应随延时变化保持稳定, 由启动句和目标句动词相同导致的启动效应的提高量(词汇增强效应)快速衰退, 首次为句子产生过程的句法选择阶段和计划阶段提供了证据。在句子产生潜伏期上, 仅发现启动句和目标句句法结构相同时缩短了句子产生潜伏期, 这可能是由于启动句句法结构激活水平的提高, 使得说话者在目标句产生的句法计划和选择阶段都更快引起的。选择阶段的加工影响句法选择比率, 而选择阶段和计划阶段共同影响了句子产生的潜伏期, 实验结果支持了两阶段竞争理论的观点。     

Beyond personal responsibility: Effects of causal attributions for overweight and obesity on weight-related beliefs,stigma, and policy support

Objective: The objective of this research was to compare the effects of different causal attributions for overweight and obesity, among individuals with overweight and obesity, on weight-related beliefs, stigmatising attitudes and policy support.

Design: In Study 1, an online sample of 95 US adults rated the extent to which they believed various factors caused their own weight status. In Study 2, 125 US adults read one of three randomly assigned online passages attributing obesity to personal responsibility, biology, or the ‘food environment.’ All participants in both studies were overweight or obese.

Main outcome measures: All participants reported beliefs about weight loss, weight-stigmatising attitudes, and support for obesity-related policies.

Results: In Study 1, biological attributions were associated with low weight-malleability beliefs and blame, high policy support, but high internalised weight bias. ‘Food environment’ attributions were not associated with any outcomes, while ‘personal responsibility’ attributions were associated with high prejudice and blame. In Study 2, participants who received information about the food environment reported greater support for food-related policies and greater self-efficacy to lose weight.

Conclusion: Emphasising the role of the food environment in causing obesity may promote food policy support and health behaviours without imposing the negative consequences associated with other attributions.     

Lexical availability and grammatical encoding scope during spoken sentence production

Three sentence production experiments investigate the relationship between lexical and structural processing scope. Speakers generated sentences with varying phrase structures in response to visual displays (e.g., The dog and the hat move above the fork and the tree/The dog moves above the hat and the fork and the tree). On half of the trials, one of the pictures in the arrays was previewed. Filler sentences varied preview position and sentence structure from trial to trial. When speakers could not anticipate the position of the previewed picture in the upcoming sentence (Experiment 1), preview benefit for pictures corresponding to the second noun to be produced was limited to pictures that fell within the sentence-initial phrase. When the linear position of the previewed picture was predictable, preview benefits were observed for the second noun to be produced, irrespective of phrase position (Experiment 2). However, no preview benefits were observed for the third noun to be produced (Experiment 3). In contrast, significant effects of initial phrase structure were observed in all experiments, with latencies increasing with initial phrase length. The results are consistent with speakers operating a phrasal scope for structural planning within which the scope of lexical access can vary.