Left orbital frontal activation in pathological anxiety

Twelve patients with anxiety disorder were studied with respect to regional cerebral blood flow (rCBF) using a 32-detector system with the 133 Xe inhalation technique. Measurements were taken during a rest condition and during anxiety induction. Anxiety relevant to the patient's psychological disorder was induced with a projective test, the meta-contrast technique (MCT). Increased blood flow in the orbital frontal region of the left hemisphere was observed in each of the 11 subjects who showed evidence of experiencing anxiety during the procedure. In a second study four additional anxiety patients were studied with a high-resolution (254-detector)Xe rCBF system. In addition to the anxiety and resting conditions, a neutral verbalization condition was added to control for the verbal aspects of the anxiety induction procedure. The results again showed the experience of anxiety to be accompanied by increased blood flow in the left orbital frontal region, with the patients showing this flow increase to be greater in the posterior, paralimbic, areas of the region. These results are consistent with previous suggestions of left hemisphere involvement in anxiety. They also suggest that imaging methods may allow research into what appears to be exaggerated corticolimbic activity in this disorder.     

Math Talk and Student Strategy Trajectories: The Case of Two First Grade Classrooms

This study investigated different math-talk facilitations, and conceptualized the teachers' talk moves for productive student mathematics discussions. Our findings suggest that students' strategy development is supported by talk moves coordinating a wide range of student strategies, representations and discussions that are at a process-level and maintain student ownership of ideas, and transitional strategies that connect students' beginning ideas with target strategies.     

Extending Fitts' law to a three-dimensional pointing task

An attempt was made to extend Fitts' law to a three-dimensional movement (pointing) task to enhance its predictive performance in this domain. An experiment was conducted in which 10 subjects performed three-dimensional pointing movements under the manipulation of target size, distance to target and direction to target. As expected, the duration of these three-dimensional movements was rather variable and affected markedly by direction to target. As a result, the variance in the movement times produced was not satisfactorily explained by the conventional Fitts' model. The conventional model was extended by incorporating a directional parameter into the model. The extended model was shown to better fit the data than the conventional Fitts' model, both in terms of r(2) and the standard error of the residual between the measured movement time and the value predicted by model fit.     

Inter- and intra-group differences in psychological concerns among international students

With data gathered from 47 university counseling centers in the United States, this study addresses both inter- and intra-group differences in symptomatology at intake among international students. In Study 1, symptomatology among international students was explored in comparison to US ethnic groups. In Study 2, intra-group differences in symptomatology among international students were examined. In Study 1, data consisted of 14,421 international, White American, African American, Asian American, and Latina/Latino American counseling center clients who completed the CCAPS-62 at intake. Partially supporting our hypothesis, results indicate significant findings among international students in the social anxiety and academic distress domains of the CCAPS-62. Contrary to our expectations, Asian American students reported significantly greater concerns across many domains when compared to other groups. In Study 2, international students (n = 607) were further divided into five continents of origin: Asia, Africa, North America, South America, and Europe. Results indicate that in multiple domains, international students from Asia and Africa reported significantly greater concerns than those from Europe, North America, or South America. Implications of findings for university counseling centers and universities at large are discussed.     

Empathizing with a dissimilar other: the role of self-other distinction in sympathetic responding

Can we empathize effectively with someone who has a different sensitivity to physical events from ours? Or, are we susceptible to an egocentric bias in overprojection, which may lead us to under- or overreact in such cases? In this study, participants with normal visual and auditory capacity observed a video clip in which a sighted or blind target was exposed to a strong flash or high-frequency sound, while their physiological arousals during the observation were recorded. On average, participants displayed a differential arousal pattern to the aversive stimuli, according to the target's ability to perceive them. Degrees of arousal control were also correlated with dispositional differences in empathy. Participants who scored higher on the Empathic Concern subscale of Davis's Interpersonal Reactivity Index were better at controlling arousals in accordance with the Target × Stimulus interaction. The authors' findings have important implications for helping disabled people while respecting their inherent dignity and individual autonomy.     

Influence of gender membership on sequential decisions of face attractiveness

Responses in a current trial are biased by the stimulus and response in the preceding trial. In a mixed-category sequence, the sequential dependency is weaker when the stimuli of the current and preceding trials fall under different categories. In the present study, we investigated the influence of the gender membership of faces on the sequential dependency. Forty-eight pictures of male and female faces were presented successively. Participants rated the attractiveness, roundness, or intelligence of each face on a 7-point scale. The sequential effect was robustly observed, irrespective of the property to be judged. However, between-gender sequential dependency was weaker than within-gender dependency only in the attractiveness judgment. These findings suggest that the gender of faces serves as a cue for forming category representations when face attractiveness is of interest, and hence that the formation of categories in sequential decisions is an adaptive process that depends on the property to be judged.     

Suicide in Japan: socioeconomic effects on its secular and seasonal trends

Changes in male and female suicide death rates for 33 years following the end of World War II in Japan were analyzed. The death rates for men and women decreased during periods of economic prosperity and then increased during the years preceding economic depression; that for men also increased after economic depression. When examined by profile analysis, the seasonal variation was slightly but significantly different in the four time periods (1950-1955, 1955-1967, 1967-1974, and 1974-1982) in both sexes except between the last two periods (p less than .05). We suggest that death by suicide and its seasonal variation in Japan were affected by changes in socioeconomic conditions.     

Correlations of conceptual development with motor skills for a Turkish sample of kindergarten children

The purpose was to research the conceptual development and motor skills of 36 healthy children of kindergarten age (M age = 67.6 mo., SD = 3.6). 19 girls and 17 boys completed the Bracken Basic Concept Scale-Revised and the Bruininks-Oseretsky Test of Motor Proficiency-Short Form.