Oculomotor and manual indexes of incidental and intentional spatial sequence learning during middle childhood and adolescence

The goal of this study was to examine incidental and intentional spatial sequence learning during middle childhood and adolescence. We tested four age groups (8-10 years, 11-13 years, 14-17 years, and young adults [18+ years]) on a serial reaction time task and used manual and oculomotor measures to examine incidental sequence learning. Participants were also administered a trial block in which they were explicitly instructed to learn a sequence. Replicating our previous study with adults, oculomotor anticipations and response times showed learning effects similar to those in the manual modality. There were few age-related differences in the sequence learning indexes during incidental learning, but intentional learning yielded differences on all indexes. Results indicate that the search for regularities and the ability to learn a sequence rapidly under incidental conditions are mature by 8 to 10 years of age. In contrast, the ability to learn a sequence intentionally, which requires cognitive resources and strategies, continues to develop through adolescence.     

Do Employees Leave Just Because They Can? Examining the Perceived Employability–Turnover Intentions Relationship

The relationship between perceived employability and turnover intentions seems much more complicated than what the common sense would suggest. Based on the reviewed literature, it was expected that job satisfaction, affective commitment, and perceived job security would moderate this relationship. Using a sample of working individuals from different occupations and sectors (N = 721), it was found that employees who perceived themselves as highly employable were more likely to have turnover intentions when their affective commitment was low and perceived job security was high; and the relationship was negative for employees with shorter tenures. Understanding the conditions under which perceived employability is associated with turnover intentions may help organizations design human resource policies that allow them to retain an educated and competent workforce.     

Attitudes toward physical education and class preferences of Turkish adolescents in terms of school gender composition

The purpose of this study was to examine attitudes toward physical education (PE and PE class preferences of high school Turkish students in terms of school gender composition; 213 girls and 249 boys from coeducational public schools, and 196 girls and 210 boys from single-sex vocational schools participated in the study. The Attitudes Toward Physical Education Scale was administered and the results of 2 x 2 (Gender x School Type) ANOVA indicated that students in coeducational schools in general, and boys had more favorable attitudes. Additionally, chi-square analysis demonstrated significant differences in PE class preferences between students from single-sex and coeducational schools and between girls and boys.     

Components of Visual Search in Childhood-Onset Schizophrenia and Attention-Deficit/Hyperactivity Disorder

This study tested the hypotheses that visual search impairments in schizophrenia are due to a delay in initiation of search or a slow rate of serial search. We determined the specificity of these impairments by comparing children with schizophrenia to children with attention-deficit hyperactivity disorder (ADHD) and age-matched normal children. The hypotheses were tested within the framework of feature integration theory by administering children tasks tapping parallel and serial search. Search rate was estimated from the slope of the search functions, and duration of the initial stages of search from time to make the first saccade on each trial. As expected, manual response times were elevated in both clinical groups. Contrary to expectation, ADHD, but not schizophrenic, children were delayed in initiation of serial search. Finally, both groups showed a clear dissociation between intact parallel search rates and slowed serial search rates.     

EEG gamma-band response during the perception of Necker cube reversals

In two former studies our research group reported frontal gamma-band enhancement during multistable visual perception and reversal rate dependent differences in the gamma-band. In these studies, a dynamic reversible figure was used which was based on the phenomenon of apparent motion. The aim of this study was to examine whether the results obtained with a dynamic motion paradigm can be replicated with the static Necker cube. The results demonstrate a general frontal gamma-band enhancement and higher induced gamma activity for subjects with a relatively high reversal rate in comparison to subjects with a relatively low reversal rate. This pattern of results fits well to the findings obtained with the dynamic motion paradigm. Therefore, the important role of frontal gamma activity for figure reversals has received further evidence. The results support the involvement of attentional top-down processing of figure reversal that is not directly related to binding processes.     

Individual Differences as Predictors of Illicit Drug Use Among Turkish College Students

ABSTRACT

Although the prevalence of drug use in the young adult population in Turkey is still far below the figures reported for most European Union countries and the United States, there seems to be a noteworthy increase in drug use, especially among high school and college students. The purpose of the present study was to examine the extent of drug use among college students in Turkey and to identify some of the individual-difference variables associated with drug use. Participants were 781 college students. A survey package including (a) measures of sensation seeking–risk taking, self-esteem, affectivity level, global mental health, overall life satisfaction, and the rate and nature of substance use and (b) demographic questions was administered to the participants during regularly held class meetings. A logistic regression analysis revealed that sensation seeking?risk taking, parental education level, smoking, and frequency of alcohol use predicted illicit drug experience. Implications of the findings and limitations of the study are discussed using the context of the study as a framework.     

Exploring Mindfulness With Occupational Therapists Practicing in Mental Health Contexts

Mindfulness, defined as “a purposeful, non-anxious, reflective presence,” (Epstein, 2003a Epstein, R. M., 2003a. Mindful practice in action (I): Technical competence, evidence-based medicine, and relationship-centered care, Families, Systems, &; Health 21 (1) (2003a), pp. 1–9.[Crossref] , [Google Scholar], p. 1) has been identified as a potentially key practice skill of effective health care practitioners working in mental-health settings. The purpose of this mixed-methods study was to explore the cultivation and use of mindfulness in the clinical practice and everyday lives of occupational therapists who practice in mental health. Results revealed that mindfulness is perceived as being an important clinical quality, which enhances therapist well-being and effectiveness, and contributes to improved client outcomes. Relevance to occupational therapy practice philosophies and directions for future research are discussed.     

Predicting Military Performance from Specific Personality Measures: A validity study

This study examined the criterion‐related validity of the dimensions of a customized personality inventory in predicting different aspects of military performance. A cross‐validity study was also carried out to establish the stability of the obtained regression weights. The sample consisted of 733 non‐commissioned officers who filled out the personality inventory. Three different measures of performance (i.e., commendations, reprimands, and cumulative ranking) were used as the criteria in validating the inventory. Among the 11 dimensions of the inventory, emotional stability, directing and monitoring, self‐discipline, and military bearing predicted commendations; determination was the only predictor for reprimands, and cumulative ranking was predicted by determination and adaptability. The cross‐validity procedure showed that the obtained regression weights were stable, providing further support for the validity of the personality measures. Results yielded support for the argument that specific personality measures could be respectable predictors of different aspects of military performance.     

Predicting applicant withdrawal: An expectancy theory perspective

The purpose of this study was to examine the predictors of withdrawal from the job application process. To this end, this study used expectancy theory as its theoretical framework. Using data from 5,346 applicants to an entry-level military position in a large European military organization, results indicated that a positive change in job attraction, applicant emotional stability, and conscientiousness, and the amount of information and self-efficacy regarding selection procedures all had negative relationships with applicant withdrawal. The variables, which had a positive relationship with applicant withdrawal, included time interval after the application and perceptions of alternative employment opportunities. In addition, self-reported reasons for withdrawal were also examined, which included scheduling conflicts, problems with completing the application documents, and losing interest in the job. Both theoretical and practical implications of the findings are discussed.