Multisensory exploration and object individuation in infancy

Recent research indicates that by 4.5 months, infants use shape and size information as the basis for individuating objects but that it is not until 11.5 months that they use color information for this purpose. The present experiments investigated the extent to which infants' sensitivity to color information could be increased through select experiences. Five experiments were conducted with 10.5- and 9.5-month-olds. The results revealed that multimodal (visual and tactile), but not unimodal (visual only), exploration of the objects prior to the individuation task increased 10.5-month-olds' sensitivity to color differences. These results suggest that multisensory experience with objects facilitates infants' use of color information when individuating objects. In contrast, 9.5-month-olds did not benefit from the multisensory procedure; possible explanations for this finding are explored. Together, these results reveal how an everyday experience--combined visual and tactile exploration of objects--can promote infants' use of color information as the basis for individuating objects. More broadly, these results shed light on the nature of infants' object representations and the cognitive mechanisms that support infants' changing sensitivity to color differences.     

Symptom-system fit in couples: emotion regulation when one or both partners smoke

In a laboratory smoking experiment, 25 couples in which 1 or both partners continued to smoke despite 1 of them having heart or lung disease discussed a health-related disagreement before and during a period of smoking. Immediately afterward, the partners used independent joysticks to recall their continuous emotional experience during the interaction while watching themselves on video. Participants in dual-smoker couples reported increased positive emotion contingent upon lighting up, whereas those in single-smoker couples reported the opposite. The results highlight the role of smoking in close relationships, particularly in regulating emotional closeness when both partners smoke. Attention to this fit between symptom and system may be useful in helping couples achieve stable cessation.     

Children's theories of intelligence: beliefs, goals, and motivation in the elementary years

The authors tested a developmental model of children's theories about intelligence in kindergarten, second grade, and fourth grade children by using paper-and-pencil maze tasks. Older children were more likely than younger children to espouse learning goals (e.g., that they preferred difficult mazes to improve their skill), and less likely to espouse performance goals (e.g., that they preferred easy mazes to be successful). Children in all 3 age groups reported stronger beliefs in the malleability of intelligence than the stability of intelligence. In general, the results supported the authors' hypotheses about developmental change in children's theory-like conceptions of intelligence: Beliefs, goals, and motivation were related in expected ways for second and fourth graders more than for kindergartners. The authors discussed contextual influences on children's beliefs and the development of children's conceptualizations of intelligence.     

Choice as an act of meaning: the case of social class

Social class is one important source of models of agency--normative guidelines for how to be a "good" person. Using choice as a prototypically agentic action, 5 studies test the hypotheses that models of agency prevalent in working-class (WK) contexts reflect a normative preference for similarity to others, whereas models prevalent in middle-class (MD) contexts reflect a preference for difference from others. Focusing on participants' choices, Studies 1 and 2 showed that participants from WK relative to MD contexts more often chose pens that appeared similar to, rather than different from, other pens in the choice set, and more often chose the same images as another participant. Examining participants' responses to others' choices, Studies 3 and 4 demonstrated that participants from WK relative to MD contexts liked their chosen pens more when a confederate chose similarly and responded more positively when a friend chose the same car in a hypothetical scenario. Finally, Study 5 found that car advertisements targeting WK rather than MD consumers more often emphasized connection to, rather than differentiation from, others, suggesting that models of agency are reflected in pervasive cultural products.     

Change blindness and eyewitness testimony

The authors explored the relevance of research on change blindness to eyewitness identification and testimony under intentional and incidental memory conditions. Participants (N = 80, 40 men and 40 women) viewed a video enactment of a burglary in which the identity of the burglar changed at the halfway point of the film. Half of participants were briefed to remember the content, and the other half were not. All were tested for the recall of the content, awareness of the change, and ability to identify either or both of the burglars. Some 61% of participants did not notice the identity change. Rates of detection were significantly higher in participants in the intentional condition, who also recalled significantly more detail from the film. Awareness of change was also significantly related to content recall scores and accuracy of identification of both burglars. The results illustrate the interrelation between the eyewitness and change blindness literatures.     

Utility of the Millon Behavioral Medicine Diagnostic (MBMD) to predict adherence to highly active antiretroviral therapy (HAART) medication regimens among HIV-positive men and women

Psychosocial and behavioral factors may be strong predictors of adherence to medications in a wide variety of diseases. Newly emerging antiretroviral medications for HIV have been shown to be effective but require near perfect adherence to offer clinically significant benefits. There is currently great interest in deriving patient factors that may predict optimal medication adherence in HIV-positive persons. In this study, we examined the association of psychosocial and behavioral characteristics using the Millon Behavioral Medicine Diagnostic (MBMD; Millon, Antoni, Millon, Meagher, & Grossman, 2001) and adherence to highly active antiretroviral therapy (HAART) among 117 HIV-positive individuals on HAART regimens. Specific indexes of the MBMD were associated with HAART adherence as assessed through patient interview, at baseline assessment, and at 3-month follow-up at a point after which participants had received medication adherence training. As hypothesized, the Medication Abuse scale of the MBMD was uniquely associated with overall adherence at baseline assessment and also predictive of adherence at 3-month follow-up. Additional MBMD scales were also related to overall adherence as well as specific adherence behaviors such as missed doses, following specific instructions, and overmedicating, although the Medication Abuse scale emerged as the most consistent predictor of adherence in the study. These results suggest that the MBMD can be used to predict adherence to HAART medication in a sample of HIV-positive men and women and may subsequently be used to identify those in need of adherence counseling at the point when medications are initiated.     

Promoting social competence in school-aged children: The effects of the open circle program

One hundred fifty-four fourth graders took part in an investigation of the Open Circle Program (OCP), an intervention model that encourages students, teachers and administrators to learn and practice communication, self-control and social problem-solving skills. Eight classrooms, two in each of four schools, were sampled. Two of these schools were located in middle to upper-middle class suburban areas and two served more diverse populations. Half the classrooms were headed by teachers well versed in OCP curriculum. The other half was not implementing a social competence program. Participants completed the student version of the Social Skills Rating System (SSRS) once in the fall and again in the spring. Teachers also rated the social competence of students at these same two points in the school year. Doubly-repeated measures mixed-design MANOVA analyses revealed that across the school year, OCP participants showed significantly greater teacher-reported improvements in both social skills and problem behaviors than did control group members. Although the largest gains were made by OCP children in urban areas, significant positive effects of program participation were shown by all students, regardless of school setting.     

Comparing mathematics interventions: Does initial level of fluency predict intervention effectiveness?

A paucity of research has directly compared empirically supported interventions to examine their effectiveness among students with different mathematics fluency skills. The purpose of this study was to compare the effects of two empirically supported interventions and a control condition on the mathematics fluency of 98 second and third grade students. Specifically, effects of explicit timing and cover-copy-compare on subtraction fluency were examined each session, which occurred twice weekly for a total of six weeks. HLM was used to examine progress during the intervention sessions and determine the effect of initial fluency level on intervention effectiveness. Results suggested students' initial level of fluency impacted intervention effectiveness. That is, for students whose fluency levels fell within the frustrational range CCC and control conditions resulted in the best performance over time but for children whose fluency was in the instructional range explicit timing was the most effective treatment.     

Telephone versus print delivery of an individualized motivationally tailored physical activity intervention: Project STRIDE.

OBJECTIVE: Given that only 25% of Americans meet physical activity recommendations, there is a need to develop and disseminate effective, evidence-based interventions to promote physical activity. The authors tested 2 delivery channels, telephone and print, to determine whether one was more effective in promoting physical activity. DESIGN: The authors randomly assigned 239 healthy, sedentary adults to (a) telephone-based individualized feedback, (b) print-based individualized feedback, or (c) contact control. Both intervention arms were guided by a motivationally tailored, theoretically driven computer expert system. MAIN OUTCOME MEASURES: Physical activity as measured by the 7-day Physical Activity Recall interview. RESULTS: At 6 months, both telephone and print arms significantly increased in minutes of moderate intensity physical activity compared with control, with no differences between the intervention arms. At 12 months, print participants reported a significantly greater number of moderate intensity minutes than both telephone and control participants, who did not differ. CONCLUSION: Results suggest that both telephone and print enhance the adoption of physical activity among sedentary adults; however, print interventions may be particularly effective in maintaining physical activity in the longer term.     

Familiar other-race faces show normal holistic processing and are robust to perceptual stress

Other-race individuals are remembered more poorly and receive less holistic/configural processing than same-race individuals, at least when faces are novel. Here, we examine the amelioration of these effects with familiarity, using distinctiveness-matched Caucasian and Asian stimulus sets. We confirmed a cross-race deficit for upright faces following a single encoding trial, which disappeared rapidly with practice on a small set of other-race 'friends' and did not re-emerge when perceptual processing was put under stress (presentation in the periphery). We also examined holistic/configural processing for familiarised faces using the peripheral inversion effect (McKone, 2004 Journal of Experimental Psychology: Learning, Memory, and Cognition 30 181 - 197). A test for faces and nonface objects (dogs) confirmed the validity of this technique as providing a direct measure of holistic processing; we then showed that, after 1 h of training, holistic processing was as strong for other-race as same-race faces. We conclude that practice with other-race individuals can rapidly engage normal face-processing mechanisms.