Intensive video gaming improves encoding speed to visual short-term memory in young male adults

The purpose of this study was to measure the effect of action video gaming on central elements of visual attention using Bundesen's (1990) Theory of Visual Attention.To examine the cognitive impact of action video gaming, we tested basic functions of visual attention in 42 young male adults. Participants were divided into three groups depending on the amount of time spent playing action video games: non-players (< 2 h/month, N = 12), casual players (4–8 h/month, N = 10), and experienced players (> 15 h/month, N = 20). All participants were tested in three tasks which tap central functions of visual attention and short-term memory: a test based on the Theory of Visual Attention (TVA), an enumeration test and finally the Attentional Network Test (ANT). The results show that action video gaming does not seem to impact the capacity of visual short-term memory. However, playing action video games does seem to improve the encoding speed of visual information into visual short-term memory and the improvement does seem to depend on the time devoted to gaming. This suggests that intense action video gaming improves basic attentional functioning and that this improvement generalizes into other activities. The implications of these findings for cognitive rehabilitation training are discussed.     

Perceived job autonomy and turnover intention: The moderating role of perceived supervisor support

Perceived job autonomy has been recognized as a central tenet of work design, leading to a range of positive outcomes. Still, scholars have rightfully questioned its predictive role for several outcomes, including turnover intention as the two have been found to be virtually unrelated. In line with calls for more complex research on the predictive role of perceived job autonomy on employee outcomes, the purpose of this study was to investigate whether the relationship between perceived job autonomy and turnover intention may be prone to contextual influences. Two cross-sectional surveys among 680 Norwegian employees from different public service organizations showed that the relationship between perceived job autonomy and turnover intention was moderated by perceived supervisor support. In support of our hypothesis, the form of the moderations revealed that perceived job autonomy was negatively related to turnover intention only for employees reporting high levels of perceived supervisor support. Implications for practice and directions for future research are discussed.     

Role stressors and exposure to workplace bullying: Causes or consequences of what and why?

Stressful working environments are commonly assumed to create conditions that can lead to bullying. Although environmental factors may relate to both exposure to and perpetration of workplace bullying, empirical knowledge is still limited regarding how environmental factors and bullying is causally linked. In line with interpretations of previous cross-sectional findings, the present study investigated an individual-level target-oriented model of role stressors as antecedents of exposure to workplace bullying, applying a two-wave longitudinal sample of the Norwegian working population. Results from structural regression analyses failed to identify any significant relationships between the role stressors and subsequent exposure to workplace bullying. However, prior exposure to workplace bullying accounted for subsequent variation in role ambiguity, role conflict, and role overload alike. The findings of the present study question conclusions regarding causality made in previous cross-sectional research on work-related factors as antecedents of exposure to workplace bullying. We argue that future research may benefit from adopting multilevel and actor-oriented perspectives in order to more fully understand how causal relationships between environmental factors and workplace bullying unfold.     

Assessing knowledge-intensive work environment: General versus situation-specific instruments

The aim of the present study is to examine to what extent general and situation-specific work environment instruments capture the salient work characteristics in a knowledge-intensive context. We conducted qualitative open-ended interviews with 30 employees (24 men and six women) from a Norwegian university department. The information from the interviews was content-analysed and coded on the scales of five work environment instruments; two general instruments (the General Nordic Questionnaire for Psychological and Social Factors at Work [QPSNordic] and the Job Diagnostic Survey [JDS]) and three situation-specific instruments (Assessing the climate for creativity [KEYS], Situational Outlook Questionnaire [SOQ], and the Organizational Climate Measure [OCM]). The results showed that situation-specific work environment instruments covered significantly more statements about the work environment than the general instruments. More statements could be categorized on the organization and individual levels, compared to group and leadership levels. The situation-specific instruments covered more statements than general instruments at the organization level. These statements were mainly related to the organizational context, social and relational characteristics, and encouragement of creativity and organizational impediments to creativity. The findings support the value of situation-specific instruments for assessing the work environment in knowledge-intensive organizations.     

Meditators and non-meditators on sustained and executive attentional performance

In order to gain a deeper understanding of the mindfulness construct and the mental health benefits associated with mindfulness-based programmes, the relation between mindfulness and its proposed core component attention was studied. Buddhist and Western mindfulness meditators were compared with non-meditators on tasks of sustained (SART) and executive (the Stroop Task) attention. Relations between self-reported mindfulness (FFMQ) and sustained and executive attention were also analysed. No significant differences were found between meditators and non-meditators either in sustained or executive attention. High scores on the FFMQ total scale and on Describe were related to fewer SART errors. High scores on Describe were also related to low Stroop interference. Mindfulness meditators may have an increased awareness of internal processes and the ability to quickly attend to them but this type of refined attentional ability does not seem to be related to performance on attention tests requiring responses to external targets.     

Realism in confidence judgements of performance based on implicit learning

In two experiments we employed calibration methods to investigate the realism of participants' confidence ratings of their own classification performance based on knowledge acquired after training on an artificial grammar. In Experiment 1 participants showed good realism (but overconfidence) for grammatical strings but very poor realism for non-grammatical strings. Method of training (string repetition in writing or mere exposure) did not affect the realism. Furthermore, the participants underestimated their overall performance. In Experiment 2, using a more complex grammar and controlling for two types of associative chunk-strength, participants showed good realism (but still overconfidence) for both letter and symbol strings, irrespective of grammaticality. Together, these experiments show that implicit learning can give rise to knowledge products that are associated with fairly realistic meta-knowledge. It is argued that both the zero-correlation criterion and the guessing criterion are misplaced when used to define implicit knowledge; two reasons being that confidence judgements may be affected both by implicit knowledge and by inferences.     

On the subject of homosexuality: What Freud said

The article explores Freud's writing on homosexuality, from his early hypotheses, expressed in his letters to Fleiss to his last observations in The Outline of Psychoanalysis, published in 1940 after his death. We trace the continuities as well as changes in his thinking, and have organized the paper conceptually, under the headings: 1) Bisexuality 2) Narcissism and Object choice, 3) On Normality and Pathology, and 4) The Quantitative factor and Aggression. We show that Freud was the first to confirm the existence of homosexualities, that he offers no black and white solution to the question of normality and pathology, although he contributes to the understanding of the vehemence that surrounds the subject, and that, in the considerable body of work, he has offered a rich and varied foundation for further thinking on the subject.     

Influence of delayed muscle reflexes on spinal stability: Model-based predictions allow alternative interpretations of experimental data

Model-based calculations indicate that reflex delay and reflex gain are both important for spinal stability. Experimental results demonstrate that chronic low back pain is associated with delayed muscle reflex responses of trunk muscles. The aim of the present study was to analyze the influence of such time-delayed reflexes on the stability using a simple biomechanical model. Additionally, we compared the model-based predictions with experimental data from chronic low back pain patients and healthy controls using surface-electromyography. Linear stability methods were applied to the musculoskeletal model, which was extended with a time-delayed reflex model. Lateral external perturbations were simulated around equilibrium to investigate the effects of reflex delay and gain on the stability of the human lumbar spine. The model simulations predicted that increased reflex delays require a reduction of the reflex gain to avoid spinal instability. The experimental data support this dependence for the investigated abdominal muscles in chronic low back pain patients and healthy control subjects. Reflex time-delay and gain dependence showed that a delayed reflex latency could have relevant influence on spinal stability, if subjects do not adapt their reflex amplitudes. Based on the model and the experimental results, the relationship between muscle reflex response latency and the maximum of the reflex amplitude should be considered for evaluation of (patho) physiological data. We recommend that training procedures should focus on speeding up the delayed reflex response as well as on increasing the amplitude of these reflexes.     

What determines a feeling's position in affective space? A case for appraisal

The location of verbally reported feelings in a three-dimensional affective space is determined by the results of appraisal processes that elicit the respective states. One group of participants rated their evaluation of 59 pictures from the International Affective Picture System (IAPS) on a profile of nine appraisal criteria. Another group rated their affective reactions to the same pictures on the classic dimensions of affective meaning (valence, arousal, potency). The ratings on the affect dimensions correlate differentially with specific appraisal ratings. These results can be interpreted as showing that the reactions to the IAPS pictures are predictably produced through appraisal of picture content. The relevance of the findings for emotion induction paradigms and for emotion theory in general is discussed.