Novelty responding and behavioral development in young,developmentally delayed children

This study examined whether or not a measure of information processing ability based on the discrimination of novel and familiar stimuli was related to behavioral development among developmentally-delayed infants. Two samples of handicapped infants were administered multiple measures of visual novelty discrimination and a battery of assessments which were representative of available measures of development in infancy. The results indicated that, as a group, the developmentally delayed infants were capable of discriminating novel and familiar stimuli. Also, correlational analyses indicated that responding to novelty was related to developmental accessment performance in both samples. This finding is consistent with previous data which indicates that novelty response measures are associated with important individual differences in young children.     

Natural categories

The hypothesis of the study was that the domains of color and form are structured into nonarbitrary, semantic categories which develop around perceptually salient “natural prototypes.” Categories which reflected such an organization (where the presumed natural prototypes were central tendencies of the categories) and categories which violated the organization (natural prototypes peripheral) were taught to a total of 162 members of a Stone Age culture which did not initially have hue or geometric-form concepts. In both domains, the presumed “natural” categories were consistently easier to learn than the “distorted” categories. Even when not central, natural prototype stimuli tended to be more rapidly learned and more often chosen as the most typical example of the category than were other stimuli. Implications for general differences between natural categories and the artificial categories of concept formation research were discussed.     

The influence of brief episodes of aerobic exercise activity,soothing music-nature scenes condition,and suggestion on coping with test-taking anxiety

This study examines the influence of aerobic exercise activity, soothing musicnature scenes condition, and suggestion on coping with test-taking anxiety. Sixty test anxious subjects were randomly assigned to four treatment groups consisting of 15-min episodes of exercise or soothing music-nature scenes condition with or without verbal suggestion that the treatment task in which they were engaged would be helpful to them. A videotaped intelligence test used to stimulate test-taking anxiety was given to the subjects after the soothing music-nature scenes condition or exercise tasks. The Multiple Affect Adjective Checklist (MAACL) was used to appraise anxiety during the laboratory procedures. Results indicate that exercise, soothing music-nature scenes condition, and suggestion play a role in reducing anxiety. While relaxation activity proved to be superior to exercise in reducing anxiety immediately following the treatment episode, these differences disappear following exposure to a stressful IQ test and exercise (as well as suggestion) had a better stress inoculation effect than soothing music-nature scenes condition or no suggestion.     

Abstraction and its Limits: Finding Space For Novel Explanation

Several modern accounts of explanation acknowledge the importance of abstraction and idealization for our explanatory practice. However, once we allow a role for abstraction, questions remain. I ask whether the relation between explanations at different theoretical levels should be thought of wholly in terms of abstraction, and argue that changes of the quantities in terms of which we describe a system can lead to novel explanations that are not merely abstractions of some more detailed picture. I use the example of phase transitions as described by statistical mechanics and thermodynamics to illustrate this, and to demonstrate some details of the relationship between abstraction, idealization, and novel explanation.     

Gender and Group Process: A Developmental Perspective

Until recently, the study of gender development has focused mainly on sex typing as an attribute of the individual. Although this perspective continues to be enlightening, recent work has focused increasingly on children's tendency to congregate in same-sex groups. This self-segregation of the two sexes implies that much of childhood gender enactment occurs in the context of same-sex dyads or larger groups. There are emergent properties of such groups, so that certain sex-distinctive qualities occur at the level of the group rather than at the level of the individual. There is increasing research interest in the distinctive nature of the group structures, activities, and interactions that typify all-male as compared with all-female groups, and in the socialization that occurs within these groups. Next steps in research will surely call for the integration of the individual and group perspectives.     

Preliminary exploration of secondhand smoke exposure in youth with Sickle Cell Disease: biochemical verification,pulmonary functioning,and health care utilization

Exposure to secondhand smoke (SHSe) can compound an already challenging set of health problems for youth with Sickle Cell Disease (SCD). Exposure to electronic cigarettes may also impact SCD symptomology and respiratory functioning. This study built on these previous findings by a) utilizing two objective measures of SHSe, salivary cotinine and exhaled carbon monoxide and b) examining the association of SHSe with emergency department utilization, physician-reported sickle cell crises, and pulmonary functioning. Caregivers (N = 31 dyads; M_age = 37.6 years; SD = 8.5 years) of youth with SCD (M_age = 9.0 years; SD = 4.5 years) completed self-report measures of tobacco/nicotine use. Youth provided a saliva sample to assess cotinine levels, and performed pulmonary function tests. Dyads provided breath samples for measurement of eCO. A chart review was conducted to obtain medical history and utilization. Majority of youth (88%) were exposed to SHS via salivary cotinine. Interestingly, no significant associations were observed between youth cotinine levels and emergency department utilization, physician-reported sickle cell crises, or pulmonary functioning. Present findings indicate a need to assess for SHSe using objective assessment measures. Future research should investigate which specific factors contribute to increase SHSe/SHVe in youth with SCD.     

Auditory word comprehension impairment in acute stroke: relative contribution of phonemic versus semantic factors

Auditory word comprehension was assessed in a series of 289 acute left hemisphere stroke patients. Participants decided whether an auditorily presented word matched a picture. On different trials, words were presented with a matching picture, a semantic foil, or a phonemic foil. Participants had significantly more trouble with semantic foils across all levels of impairment.     

Measuring Hong Kong Undergraduate Students’ Attitudes Towards Transpeople

Hill and Willoughby’s (Sex Roles, 53:531–544, 2005) Genderism and Transphobia Scale (GTS), originally developed in Canada, was examined with a Hong Kong sample. Undergraduate students, 82 female and 121 male (total n?=?203), completed a Chinese version of the instrument. Overall scores and factor structure of the Hong Kong sample were compared with Hill and Willoughby’s Canadian data. Gender differences in transphobia were investigated, both in terms of the participants’ gender as well as the gender of the gender variant persons to whom GTS items referred. Transphobia was higher in Hong Kong than in Canada. The factor structure for Hong Kong differed from Canada. Five factors were identified (with a gender effect on Factors II and V). They were: I, Anti Sissy Prejudice; II, Anti Trans Violence; III, Trans Unnaturalness; IV, Trans Immorality; and V, Background Genderism. Hong Kong men were more transphobic than women. Gender variance in men was viewed less favourably than in women.     

Examination of a multi-factorial model of body-related experiences during pregnancy: the relationships among physical symptoms, sleep quality, depression, self-esteem, and negative body attitudes

The aim of this cross-sectional study was to investigate relationships among women's body attitudes, physical symptoms, self-esteem, depression, and sleep quality during pregnancy. Pregnant women (N = 215) at 15–25 weeks gestation completed a questionnaire including four body image subscales assessing self-reported feeling fat, attractiveness, strength/fitness, and salience of weight and shape. Women reported on 29 pregnancy-related physical complaints, and completed the Beck Depression Inventory, Rosenberg Self-esteem Scale, and Pittsburgh Sleep Quality Index. In regressions, controlling for retrospective reports of body image, more frequent and intense physical symptoms were related to viewing the self as less strong/fit, and to poorer sleep quality and more depressive symptoms. In a multi-factorial model extending previous research, paths were found from sleep quality to depressive symptoms to self-esteem; self-esteem was found to be a mediator associated with lower scores on feeling fat and salience of weight and shape, and on higher perceived attractiveness.