Two languages, one developing brain: event-related potentials to words in bilingual toddlers

Infant bilingualism offers a unique opportunity to study the relative effects of language experience and maturation on brain development, with each child serving as his or her own control. Event-related potentials (ERPs) to words were examined in 19- to 22-month-old English-Spanish bilingual toddlers. The children's dominant vs. nondominant languages elicited different patterns of neural activity in the lateral asymmetry of an early positive component (P100), and the latencies and distributions of ERP differences to known vs. unknown words from 200-400 and 400-600 ms. ERP effects also differed for 'high' and 'low' vocabulary groups based on total conceptual vocabulary scores. The results indicate that the organization of language-relevant brain activity is linked to experience with language rather than brain maturation.     

Interpersonal Dependency Correlates and Locus of Control Orientation Among Obese Adults in Outpatient Treatment for Obesity

Interpersonal dependency and locus of control orientation were studied in obese and nonobese samples. The Interpersonal Dependency Inventory (Hirschfeld, Klerman, Gough, Barrett, & Korchin, 1977) and the I-E Scale (Rotter, 1966) were administered to 106 obese adults in outpatient treatment for obesity. The I-E Scale was also administered to 97 nonobese control subjects. As predicted, the obese subjects were significantly more internally oriented than has been previously identified in obese populations. These findings challenge currently held assumptions about locus of control in obese groups. Although the obese and nonobese subjects maintained similar overall dependency scores, the obese subjects were more likely to show low levels of autonomy in comparison with the nonobese subjects. Interpersonal dependency and locus of control dimensions associated with obese conditions may serve as useful predictor variables influencing obesity treatment approaches and outcome.     

Effect on Mood of Thinking About Extreme Emotional Terms

The hypothesis that being asked to think about extreme emotional terms influences mood in the direction of the polarity of the terms was tested in three experiments. Subjects answered items about their mood before and after being asked to think about nine extreme, positive emotional terms (e.g., ecstatic) or nine extreme, negative emotional terms (e.g., wretched). It was found that when subjects were asked to think about extreme, positive emotional terms, mood changed in a positive direction, and when they were asked to think about extreme negative emotional terms, mood changed in a negative direction. The effect on mood of being asked to think about extreme emotional terms did not depend on whether the subjects were asked just to think about the terms(Experiment 1), to think about the terms in relation to the self (Experiment 2), or to think about the meaning of the terms (Experiment 3).     

Psychometric Properties of the Anticipatory Social Behaviours Questionnaire

Relative to other components of Clark and Wells’ (1995) model, anticipatory processing has been understudied, despite research that suggests that anticipatory processing may maintain social anxiety through mechanisms such as increased anxiety, negative memory biases, and other negative consequences. Anticipatory processing has only been examined as a unitary process, with no efforts examining the underlying structure of this process. The purpose of the current study was to examine the factor structure of the Anticipatory Social Behaviours Questionnaire (ASBQ, Hinrichsen and Clark Journal of Behavior Therapy and Experimental Psychiatry, 34, 205–218, 2003) and identify relationships between the measure’s factors and other constructs of social anxiety. Study 1 (N?=?861) used exploratory factor analysis and concluded that a two-factor model (Avoidance and Preparation) was the best conceptualization of anticipatory processing. Study 2 confirmed the two factor model in a separate sample (N?=?485) and demonstrated the superiority of the two-factor model over a unitary model. Results of Study 3 suggested that, with a sample of high-socially-anxious undergraduates (N?=?59), the Avoidance factor was more maladaptive than the Preparation factor. Results are discussed in the context of the anticipatory processing literature and future directions are proposed.     

Possible antecedents and developmental implications of shame in young girls

The objectives of this study were to assess the effects of parenting style and child emotionality on the development of proneness to shame in young girls, and the mediating effect of shame on the development of adjustment problems. Eighty‐eight girls were assessed twice, at 3 and 5 years of age, along with their mothers and fathers. Shame was assessed by observations (reactions to failure and criticism); parenting style and child emotions (fearfulness, sadness, anger) were measured using parent reports; and adjustment problems were assessed by parent and teacher reports. Girls were more likely to show shame at age 5 when both their mothers and fathers had been relatively authoritarian at age 3; their emotional dispositions did not have any direct longitudinal effects on shame. Authoritarian parenting predicted subsequent internalizing problems as assessed by teachers, but there was no evidence for a mediational effect of shame. Copyright © 2003 John Wiley & Sons, Ltd.     

A Simple Solution to the Liar

Philosophical Studies -     

Approximate entropy and point correlation dimension of heart rate variability in healthy subjects

The contribution of nonlinear dynamics to heart rate variability in healthy humans was examined using surrogate data analysis. Several measures of heart rate variability were used and compared. Heart rates were recorded for three hours and original data sets of 8192 R-R intervals created. For each original data set (n=34), three surrogate data sets were made by shuffling the order of the R-R intervals while retaining their linear correlations. The difference in heart rate variability between the original and surrogate data sets reflects the amount of nonlinear structure in the original data set. Heart rate variability was analyzed by two different nonlinear methods, point correlation dimension and approximate entropy. Nonlinearity, though under 10 percent, could be detected with both types of heart rate variability measures. More importantly, not only were the correlations between these measures and the standard deviation of the R-R intervals weak, the correlation among the nonlinear measures themselves was also weak (generally less than 0.6). This suggests that in addition to standard linear measures of heart rate variability, the use of multiple nonlinear measures of heart rate variability might be useful in monitoring heart rate dynamics.     

Counseling with aliens

This paper addresses the issue of the semantic problem frequently found in cross denominational counseling in terms of the theological-psychological question of openness versus closure. It secondarily touches upon the issues of establishing and maintaining a level of trust in cross denominational counseling; suggestions of several tools for the counselor to use in such counseling situations; and the advantages of counselor tensions within the confines of a cross denomination counseling situation.     

On-line brain stimulation: Measurement of threshold of reinforcement

This program and interface for a small computer (PDP8/e) performs the following operations: generates and delivers constant current stimulation to the brain of an animal, monitors electrical resistance at the stimulating electrode, and calculates the threshold of reinforcement based upon the frequency of characteristic pauses in the animal’s responding.