Recognizing the un-real McCoy: priming and the modularity of face recognition

Fodor (1983) has proposed that face perception is carried out by an informationally encapsulated module, whose operation is unaffected by context or expectancies. We tested the modularity hypothesis by examining whether discriminations between normal and distorted versions of famous faces can be primed, either by the name of an associated person (semantic context) or by a valid cue as to the identity of the target face (expectancy). A preliminary experiment showed that, in the absence of priming, discriminations between normal and distorted versions of a face were unaffected by whether the target faces were familiar or not, confirming that these judgments tap perceptual, not postperceptual (semantic), coding processes. In Experiment 1, accuracy was significantly higher when target face pairs were preceded by related name primes, as compared with unrelated ones. In Experiment 2, reaction times were significantly faster for targets preceded by a valid identity cue than for targets preceded by an invalid one. Neither effect could be explained as a speed—accuracy tradeoff. These results fail to support Fodor’s conjecture that face processing is encapsulated.     

Theoretical accounts of Gulf War Syndrome: from environmental toxins to psychoneuroimmunology and neurodegeneration

Non-specific illness includes a wide variety of symptoms: behavioural (e.g., reduced food and water intake), cognitive (e.g., memory and concentration problems) and physiological (e.g., fever). This paper reviews evidence suggesting that such symptoms can be explained more parsimoniously as a single symptom cluster than as a set of separate illnesses such as Gulf War Syndrome (GWS) and chronic fatigue syndrome (CFS). This superordinate syndrome could have its biological basis in the activity of pro-inflammatory cytokines (in particular interleukin-1: IL-1), that give rise to what has become known as the 'sickness response'. It is further argued that the persistence of non-specific illness in chronic conditions like GWS may be (in part) attributable to a bio-associative mechanism (Ferguson and Cassaday, 1999). In the case of GWS, physiological challenges could have produced a non-specific sickness response that became associated with smells (e.g., petrol), coincidentally experienced in the Persian Gulf. On returning to the home environment, these same smells would act as associative triggers for the maintenance of (conditioned) sickness responses. Such associative mechanisms could be mediated through the hypothalamus and limbic system via vagal nerve innervation and would provide an explanation for the persistence of a set of symptoms (e.g., fever) that should normally be short lived and self-limiting. We also present evidence that the pattern of symptoms produced by the pro-inflammatory cytokines reflects a shift in immune system functioning towards a (T-helper-1) Th1 profile. This position contrasts with other immunological accounts of GWS that suggest that the immune system demonstrates a shift to a Th2 (allergy) profile. Evidence pertaining to these two contrasting positions is reviewed.     

How social perception can automatically influence behavior

Do we always know the reasons for our actions? Or is our behavior sometimes unknowingly and unintentionally influenced by what we have recently perceived? It has been traditionally assumed that the automatic influence of knowledge in memory is limited to people's interpretation of the world, and stops short of shaping their actual behavior. Researchers in experimental social psychology have begun to challenge this assumption by documenting how people's behaviors can be unknowingly influenced by knowledge that is incidentally activated in memory during social perception. We review findings that suggest that the social knowledge that is incidentally activated while reading words or imagining events subsequently affects participants' behaviors across a range of ostensibly unrelated domains.     

Using a Naturalistic Sport Context to Train Social Skills in Children

ABSTRACT

Researchers have utilized sports activities to deliver social skills training (SST) programs to children. Using a multiple-baseline across behaviors design, we examined whether a brief SST program delivered during a soccer camp would increase social skills and athletic competencies. Each participant’s self-concept, and his interest in soccer were evaluated. Results suggest that the SST procedure effectively increased targeted social skills. Further, participants reported increased interest in soccer and higher overall self-concept. Our results suggest that similar effects can be achieved in a relatively short, but intense, camp that utilizes SST and sports-skill training components. Limitations and implications are discussed.     

Impact of a Kentucky Maternal, Infant, and Early Childhood Home-Visitation Program on Parental Risk Factors

As public health organizations continue to implement maternal and child health home-visitation programs, more evaluation of these efforts is needed, particularly as it relates to improving parental behaviors. The purpose of our study was to assess the impact of families’ participation in a home-visitation program offered by a central Kentucky health department on parental risk factors. A family social worker or nurse interviewed parents pre-intervention, completing a Parent Survey which assessed multiple parental risk factors associated with negative health and well-being and to calculate a total risk score. Upon exiting the program, parents are re-interviewed to document improvements, review progress and accomplished goals, plan for transitional services, and calculate a new risk score. As of December 2010, 64 families had completed the home-visitation program and had pre- and post-risk scores available for analysis. Based on paired-sample t tests, there was a statistically significant difference in total mean risk scores among both mothers and fathers from pre to post. The McNemar–Bowker test also revealed statistically different scores for four of the six risk factors for mothers and fathers pre- and post-home-visitation: lifestyle behaviors and mental health, coping skills and support systems, stresses, and anger management skills. Findings suggest that families who were deemed at-risk for adverse pregnancy and child health outcomes benefit from participation in the home-visitation program. Programs designed to promote positive pregnancy outcomes and child development may benefit from providing social support, fostering parental knowledge, skill development and problem solving, insuring proper medical care, and connecting parents with community resources.     

Examining mental simulations of uncertain events

A great deal of research into the experiential nature of language has demonstrated that our understanding of events is facilitated through mental simulations of the described linguistic input. However, to date little is understood about how contextual uncertainty about the described event might influence the content and strength of these mental representations or the cognitive effort involved. In this article, we report a single experiment in which participants read sentences such as “The old lady [knows/thinks] that the picnic basket is open.” Following a delay of 250 or 1,500 ms, they responded to pictures that varied in the physical form of the target object (matching vs. mismatching). Results revealed an expected facilitation effect for matching images, but more important, they also showed interference effects (longer reaction times) at the shorter interstimulus interval (ISI; 250 ms) following the uncertain verb thinks, as compared with the certain verb knows. At the longer ISI, this effect was no longer present. This suggests that at the short ISI, uncertain conditions required extra time to construct and map a simulation of events onto the available image. Results are discussed in terms of the mechanisms involved in representing possible events and with reference to related literature on perspective taking.     

基于培养医学创新能力的医学方法学课程体系构建

医学知识发现、医学认识能力的形成须有医学方法学的有效支撑,由此,形成了致力于医学知识获取、利用与产出的医学方法学课程.遵从结构决定功能的理念,将医学信息检索、流行病学、临床流行病学、循证医学、医学科研导论等课程构建起医学方法学课程群,形成模块化集成优势,有助于创新能力培养.     

The Role of Accountability in Suppressing Managers’ Preinterview Bias against African-American Sales Job Applicants

In an experiment on preinterview racial bias, white sales managers evaluated the resume of either a white or African- American applicant for a sales position. Managers exhibited a preinterview racial bias, giving a more positive hiring recommendation for the white versus African-American applicant even though their resumes were exactly the same. However, when managers felt accountable to others for their evaluations, they suppressed racial bias by evaluating the African-American’s credentials more positively. Our experiment identifies a condition under which preinterview racial bias against African-American sales applicants may be attenuated and delineates a strategy by which managers may overcome preinterview racial bias.     

The physical environment and child development: An international review

A growing body of research in the United States and Western Europe documents significant effects of the physical environment (toxins, pollutants, noise, crowding, chaos, and housing, school and neighborhood quality) on children and adolescents' cognitive and socioemotional development. Much less is known about these relations in other contexts, particularly the global South. We thus briefly review the evidence for relations between child development and the physical environment in Western contexts, and discuss some of the known mechanisms behind these relations. We then provide a more extensive review of the research to date outside of Western contexts, with a specific emphasis on research in the global South. Where the research is limited, we highlight relevant data documenting the physical environment conditions experienced by children, and make recommendations for future work. In these recommendations, we highlight the limitations of employing research methodologies developed in Western contexts (Ferguson & Lee, 2013). Finally, we propose a holistic, multidisciplinary, and multilevel approach based on Bronfenbrenner's (1979) bioecological model to better understand and reduce the aversive effects of multiple environmental risk factors on the cognitive and socioemotional development of children across the globe.     

Infants use known verbs to learn novel nouns: Evidence from 15- and 19-month-olds

Fluent speakers’ representations of verbs include semantic knowledge about the nouns that can serve as their arguments. These “selectional restrictions” of a verb can in principle be recruited to learn the meaning of a novel noun. For example, the sentence He ate the carambola licenses the inference that carambola refers to something edible. We ask whether 15- and 19-month-old infants can recruit their nascent verb lexicon to identify the referents of novel nouns that appear as the verbs’ subjects. We compared infants’ interpretation of a novel noun (e.g., the dax) in two conditions: one in which dax is presented as the subject of animate-selecting construction (e.g., The dax is crying), and the other in which dax is the subject of an animacy-neutral construction (e.g., The dax is right here). Results indicate that by 19 months, infants use their representations of known verbs to inform the meaning of a novel noun that appears as its argument.