Teaching preschool children to avoid poison hazards

We evaluated the effectiveness of group safety training and in situ feedback and response interruption to teach preschool children to avoid consuming potentially hazardous substances. Three children ingested ambiguous substances during a baited baseline assessment condition and continued to ingest these substances following group safety training. In situ feedback and response interruption resulted in a decrease in opening ambiguous containers; this decrease was maintained when ambiguous novel containers were presented and when assessments occurred in a novel setting and with a novel experimenter. For 2 children, these gains were also maintained during a brief follow-up period. Twelve children did not ingest ambiguous substances prior to training, and group safety training did not evoke inappropriate ingestion.     

The situated person: Effects of construct accessibility on situation construals and interpersonal perception

Three studies examined the interrelationship between primed constructs, situation construal, and person perception. Previous research on priming and person perception has generally neglected the situational context. We predicted that when rich situational information is included, primed constructs can lead to assimilation effects on situation construals, which can in turn lead to contrast effects in person perceptions. Study 1 demonstrated that when situation information is included in the experimental context, primes lead to contrast in person perceptions. Study 2, employing a subliminal methodology, demonstrated that these effects could not be accounted for via previous explanations of contrast effects, such as correction-based mechanisms, that require overt recognition of the priming stimuli by the participants. Study 3 demonstrated that the contrastive effects of the priming stimuli on person perception obtained in Studies 1 and 2 are in fact due to the intervening assimilative effects of the priming stimuli on situation construal—that is, the primed constructs led to contrast effects on perceptions of the actor via their assimilative effects on perceptions of the situation in which that actor was embedded. Additionally, moderator variables demonstrated that this effect is most pronounced when the target actor’s behavior is described as relatively unambiguous or situation focus is increased.     

The Effects of Contact with Asians and Asian Americans on White American College Students: Attitudes, Awareness of Racial Discrimination, and Psychological Adjustment

On the basis of acculturation theory, explicating mutual influences between different cultural or ethnic groups coming into contact, this study focused "on the other side of acculturation" theory by examining the effects of intercultural contact with Asians and Asian Americans on the psychosocial experiences of White American college students. Participants (N = 315), undergraduates attending a public university located within the state of Massachusetts, completed a survey that assessed demographic and personal characteristics, acculturation (extent of intercultural contact with Asian people and Asian cultures), attitudes towards Asians and Asian Americans, awareness of institutional discrimination and blatant racial issues, and psychological distress. Results indicated that White American students' intercultural contact with Asians and Asian Americans contributed significant variance to the prediction of their attitudes towards this ethnic group and awareness of discrimination and racial issues, but not to psychological distress. This study provides implications for understanding mutual acculturative influences between different ethnic groups in the United States.     

Speech and language functions that require a functioning Broca's area

A number of previous studies have indicated that Broca's area has an important role in understanding and producing syntactically complex sentences and other language functions. If Broca's area is critical for these functions, then either infarction of Broca's area or temporary hypoperfusion within this region should cause impairment of these functions, at least while the neural tissue is dysfunctional. The opportunity to identify the language functions that depend on Broca's area in a particular individual was provided by a patient with hyperacute stroke who showed selective hypoperfusion, with minimal infarct, in Broca's area, and acutely impaired production of grammatical sentences, comprehension of semantically reversible (but not non-reversible) sentences, spelling, and motor planning of speech articulation. When blood flow was restored to Broca's area, as demonstrated by repeat perfusion weighted imaging, he showed immediate recovery of these language functions. The identification of language functions that were impaired when Broca's area was dysfunctional (due to low blood flow) and recovered when Broca's area was functional again, provides evidence for the critical role of Broca's area in these language functions, at least in this individual.     

Excitatory and inhibitory learning with absent stimuli

Three experiments showed that 2 associatively activated stimulus representations may engage in excitatory or inhibitory learning, depending on their temporal relationship. Experiment 1a suggested that simultaneously activated stimulus representations show evidence of inhibitory learning in an acquisition test. Experiment 1b showed similar evidence of inhibition in a summation test. Experiment 2 found that activation of 2 stimulus representations in a serial compound resulted in excitatory learning between the antecedent and the subsequent (forward) and inhibitory learning between the subsequent and the antecedent (backward). The results show the dynamic influence of temporal contiguity on mediated learning.     

Influences on communicative development at 24 months of age: child temperament, behaviour problems, and maternal factors

Within a longitudinal study using a large representative, community sample of infants recruited at mean age 8 months, we examined influences on infant communication development at 24 months, including child gender, shy temperament, behavioural and emotional problems, and several variables relating to maternal psychosocial health. On most developmental measures girls were in advance of boys and they also showed shyer temperament. Child gender, shy temperament and maternal psychosocial indices were associated with both vocabulary development as measured by the MacArthur-Bates Communicative Development Inventory (CDI), and communication and symbolic development assessed via the Communication and Symbolic Behaviour Scales-Developmental Profile (CSBS) at 24 months. No prediction was found using scores at 8 or 12 months, although moderate stability between measures between 12 and 24 months was evident. Predictors of 24 month outcomes were all concurrently measured variables, and included temperamental shyness, but very little variance in communication outcomes was explained. Children whose mothers were experiencing clinical levels of depression and life difficulties reported more child behavioural problems.     

Asian American career development: A qualitative analysis

This study used a modified version of consensual qualitative research design to examine how contextual, cultural, and personal variables influence the career choices of a diverse group of 12 Asian Americans. Seven domains of influences on career choices emerged including family, culture, external factors, career goals, role models, work values, and self-identity. Furthermore, several overarching themes were discovered that expressed elements of many of these domains. These themes highlighted the pervasive and influential role that both culture and family of origin play in the construction of meaning that these Asian American participants made from their career choices. Implications of these domains and themes and suggestions for future research are discussed.     

Strategy use in mental subtraction determines central executive load

A dual task method was used to examine the relationship between strategy use and working memory load during subtraction problem solving. Undergraduates mentally solved subtraction problems alone and while performing secondary tasks that involved the central executive of working memory. Analyses revealed that a central executive task involving response selection and input monitoring (CRT-R task) interfered more with subtraction problem solving than a task that involved only input monitoring (SRT-R task). Additional analyses showed that the CRT-R task interfered more when participants used a nonretrieval (counting) strategy than a retrieval strategy. These findings suggest that the response selection subcomponent of the central executive is involved during both retrieval-based and non-retrieval-based simple subtraction problem solving but is involved more during the latter.     

Religiosity in Emerging Adulthood: Familial Variables and Adjustment

The current study is an examination of the familial variables associated with the expression of intrinsic and extrinsic religiosity and the relationship between religiosity and adjustment in emerging adulthood. Three hundred and five emerging adults completed questionnaires regarding their religiosity, psychological adjustment, and several familial variables. Parental divorce, perceived parental marital satisfaction, and family support were found to relate to religiosity. Additionally, those classified as intrinsically and indiscriminately religious reported higher levels of self-esteem than the extrinsically religious. The current study highlights the importance of examining multiple contextual variables simultaneously in order to assess the true multidimensional aspect of religious expression in emerging adulthood. Portions of this paper were presented at the meeting of the American Psychological Society, Chicago, May 2004.     

Childhood Healthcare Experience,Healthcare Attitudes,and Optimism as Predictors of Adolescents’ Healthcare Behavior

Late adolescence and early adulthood is a time when people establish many of their life-style behaviors. Thus, in order to promote optimal health, it is important to identify factors predictive of young adults’ healthcare behavior. This study evaluated the relationship between measures of childhood healthcare experience, healthcare attitudes, and optimism with young adults’ healthcare behavior in a sample of college students (n = 100). Results suggested that prior healthcare experience, attitudes about healthcare, and optimism are associated with current healthcare behavior. In addition, the relation between childhood healthcare experience and current healthcare behavior was moderated by optimism, such that those who reported both more negative childhood healthcare experiences and low levels of optimism reported the least adaptive healthcare behaviors and those who reported the most positive childhood healthcare experience and the highest levels of optimism reported the most adaptive healthcare behavior.