Increasing stimulus intensity does not affect sensorimotor synchronization

When people synchronize taps with isochronously presented stimuli, taps usually precede the pacing stimuli [negative mean asynchrony (NMA)]. One explanation of NMA [sensory accumulation model (SAM), Aschersleben in Brain Cogn 48:66–79, 2002] is that more time is needed to generate a central code for kinesthetic-tactile information than for auditory or visual stimuli. The SAM predicts that raising the intensity of the pacing stimuli shortens the time for their sensory accumulation, thereby increasing NMA. This prediction was tested by asking participants to synchronize finger force pulses with target isochronous stimuli with various intensities. In addition, participants performed a simple reaction-time task, for comparison. Higher intensity led to shorter reaction times. However, intensity manipulation did not affect NMA in the synchronization task. This finding is not consistent with the predictions based on the SAM. Discrepancies in sensitivity to stimulus intensity between sensorimotor synchronization and reaction-time tasks point to the involvement of different timing mechanisms in these two tasks.     

Novice teachers’ experience of teaching: a dynamic aspect of burnout

This article addresses the question of how novice teachers perceive their work environment and how their perceptions affect burnout. Data were obtained from a questionnaire administered to novice teachers at the beginning and at the end of the school year. It was found that (1) novice teachers experienced high levels of burnout as early as the beginning of their first year of teaching; (2) novice teachers’ perception of their work environment at the beginning and at the end of their first year significantly and meaningfully explained their sense burnout; (3) three variables contribute to predicting burnout at the beginning and at the end of the first year of teaching: (a) lack of appreciation and professional recognition from students; (b) lack of appreciation and professional recognition from the public, and (c) lack of collaborative and supportive ambience.     

TARGET ARTICLE: Singles in Society and in Science

We suggest that single adults in contemporary American society are targets of stereotyping, prejudice, and discrimination, a phenomenon we will call singlism. Singlism is an outgrowth of a largely uncontested set of beliefs, the Ideology of Marriage and Family. Its premises include the assumptions that the sexual partnership is the one truly important peer relationship and that people who have such partnerships are happier and more fulfilled than those who do not. We use published claims about the greater happiness of married people to illustrate how the scientific enterprise seems to be influenced by the ideology. We propose that people who are single-particularly women who have always been single-fare better than the ideology would predict because they do have positive, enduring, and important interpersonal relationships. The persistence of singlism is especially puzzling considering that actual differences based on civil (marital) status seem to be qualified and small, the number of singles is growing, and sensitivity to other varieties of prejudice is acute. By way of explanation, we consider arguments from evolutionary psychology, attachment theory, a social problems perspective, the growth of the cult of the couple, and the appeal of an ideology that offers a simple and compelling worldview.