自闭症谱系障碍者的视运动知觉

视运动知觉是人脑对外界物体的运动特性的知觉。视运动知觉异常是自闭症谱系障碍者的一种常见表现, 其检测光流、二阶运动、协同性运动、生物运动及运动速度的能力异于健康控制组, 且过度迷恋重复性运动物体。该群体视运动知觉异常的原因探析集中于背侧/M细胞通路特定假设、复杂性假设、神经噪声假设、经验缺失假设、时空加工异常假设、极端男性脑理论和社会脑假设。但到目前为止, 尚缺乏一个统一准确的、可验证的解释。未来研究应注重考察自闭症者视运动知觉异常的个体差异和神经生理机制, 进一步整合和验证解释理论, 并着眼开发有效的视运动知觉测评工具和干预策略     

Triune ethics: The neurobiological roots of our multiple moralities

Triune Ethics Theory (TET) is a psychological theory developed to meet three goals. First, it attempts to harvest critical findings from neurobiology, affective neuroscience, and cognitive science and to integrate them into moral psychology for the purpose of informing psychological research on the moral life of persons. In contrast to dominant theories that focus on top-down, deliberative reasoning (e.g., Kohlberg), TET is a bottom-up theory that focuses on motivational orientations that are rooted in evolved unconscious emotional systems shaped by experience that predispose one to react to and act on events in particular ways. Second, it seeks to explain differences in moral functioning through a person by context interaction. Individuals differ in early emotional experiences that influence personality formation and behavior in context, while at the same time situations can evoke particular reactions, which vary with personality. Third, it suggests the initial conditions for optimal human moral development.     

Role of visual-perceptual skills (non-motor) in children with developmental coordination disorder

The purposes of this study were to examine test-retest reliability of the Test of Visual-Perceptual Skills (Non-Motor)-Revised (TVPS-R), to explore motor-free visual-perceptual skills, and to categorize subtypes thereof in children with developmental coordination disorder (DCD). One hundred and seventy-eight children, aged 9 and 10 years, identified as having DCD with the Movement Assessment Battery for Children (M-ABC), were assessed, along with 200 typically developing children. The results showed good test-retest reliability for the total perceptual quotient scores of the TVPS-R, but not for all subtests. Children with DCD performed significantly poorer compared to typically developing children on the visual-perceptual test, but the deficits were not common to all children with DCD. This study supported the stance that we should consider the heterogeneous characteristics of children with DCD when designing experimental studies or developing educational interventions.     

Cerebellar patients demonstrate preserved implicit knowledge of association strengths in musical sequences

Recent findings suggest the involvement of the cerebellum in perceptual and cognitive tasks. Our study investigated whether cerebellar patients show musical priming based on implicit knowledge of tonal-harmonic music. Participants performed speeded phoneme identification on sung target chords, which were either related or less-related to prime contexts in terms of the tonal-harmonic system. As groups, both cerebellar patients and age-matched controls showed facilitated processing for related targets, as previously observed for healthy young adults. The outcome suggests that an intact cerebellum is not mandatory for accessing implicit knowledge stored in long-term memory and for its influence on perception. One patient showed facilitated processing for less-related targets (suggesting sensory priming). The findings suggest directions for future research on auditory perception in cerebellar patients to further our understanding of cerebellar functions.     

Early top-down influences on bistable perception revealed by event-related potentials

A longstanding debate exists in the literature concerning bottom-up vs. top-down influences on bistable perception. Recently, a technique has been developed to measure early changes in brain activity (via ERPs) related to perceptual reversals (Kornmeier & Bach, 2004). An ERP component, the reversal negativity (RN) has been identified, and is characterized as an increase in negative potential over the posterior scalp from 150 to 350 ms for perceptual reversals compared to perceptual stability. This finding, although interesting, has not helped resolve issues related to the bottom-up vs. top-down debate because top-down influences have not been directly manipulated. The current study focused on resolving some of these issues by measuring the RN while observers maintained one of three 'intentional approaches', (1) try to reverse perception as often as possible, (2) try to stabilize perception for as long as possible, and (3) maintain a passive approach. Enhancements in RN amplitude were found for the intention-to-reverse condition compared to the passive condition. This finding suggests an early influence (150 ms) of top-down control on perceptual reversals of bistable figures. Results are discussed in terms of competing attention shifting vs. fatigue-based theories of bistable perception.     

Social Influences on Judgments of Rape Victims: The Role of the Negative and Positive Social Reactions of Others

An experimental study examined whether judgments about a rape victim can be influenced by the social reactions of others, and whether this effect would be moderated by the type of rape (stranger or date rape) or by the gender of the participants. One hundred and ten U.S. college students (90% white; 59% female) responded to rape vignettes in which the type of rape and the social reactions received by the victim (negative, positive, or neutral) were manipulated. People exposed to negative social reactions made less positive judgments. Men and people who read about a date rape also made less positive judgments, but neither variable interacted with type of reactions to impact judgments.     

Bigrams and the richness of the stimulus

Recent challenges to Chomsky's poverty of the stimulus thesis for language acquisition suggest that children's primary data may carry "indirect evidence" about linguistic constructions despite containing no instances of them. Indirect evidence is claimed to suffice for grammar acquisition, without need for innate knowledge. This article reports experiments based on those of Reali and Christiansen (2005) , who demonstrated that a simple bigram language model can induce the correct form of auxiliary inversion in certain complex questions. This article investigates the nature of the indirect evidence that supports this learning, and assesses how reliably it is available. Results confirm the original finding for one specific sentence type but show that the model's success is highly circumscribed. It performs poorly on inversion in related constructions in English and Dutch. Because other, more powerful statistical models have so far been shown to succeed only on the same limited subset of cases as the bigram model, it remains to be seen whether stimulus richness can be substantiated more generally.     

Portrait of a narcissist: Manifestations of narcissism in physical appearance

Narcissism is characterized in part by an acute concern for one’s appearance. Despite this fundamental aspect of narcissism, little is known about whether narcissism is manifested in features of physical appearance. Can you tell if someone is narcissistic just by looking at them? Our results indicate that snap judgments of narcissism based on full-body photographs are at least as accurate as snap judgments of any of the big five personality traits. Narcissists are more likely to wear expensive, flashy clothing, have an organized, neat appearance requiring a lot of preparation, and (in females) wear makeup and show cleavage. Furthermore, observers’ judgments correlate with the presence of these cues, suggesting that they are drawing on the correct information when making their judgments. Finally, observers’ judgments are associated with three of the four facets of narcissism and capture the unique constellation of personality traits typical of narcissists (i.e., high extraversion and low agreeableness). These findings suggest that physical appearance reflects narcissists’ personality, preoccupation with good looks, and desire to be the center of attention, and serves as a vehicle with which to promote their status.     

基于数量感知的数量适应

数量适应是指观察者在知觉上适应刺激数量的过程, 这一过程可以通过考察适应后其数量感知的变化加以揭示。目前对这一现象的争论焦点在于它是对数量的单独适应还是对非数量表面信息的适应。本研究通过改变刺激点大小和刺激组块两种方式, 探讨非数量表面信息对数量感知和数量适应的影响。实验一证明刺激点大小不会对数量感知产生显著影响。实验二发现刺激组块会对数量感知产生显著影响。实验三在前两个实验基础上发现：刺激大小不对数量感知产生显著影响, 也不影响数量适应, 而刺激组块能显著改变数量感知, 并按照改变后的数量感进行适应。三个实验的结果说明：表面信息只有在影响到数量感知时才会影响适应, 数量适应是基于数量感知的加工而产生的适应现象。     

不良生活方式作用途径及其控制

不良生活方式影响健康的途径包括：病从口入;生活放纵造成机体的衰竭;享受型生活方式“废用”性的机体退化;生活中的失慎与失范导致直接的伤亡;生活压力导致的机体受损;挑战生理极限的心理、生理代价．改变不良生活方式应当遵从科学的原则和一定的标准。