Self-initiated spatial working memory in young and older adults

The age-related decline in working memory (WM) has been studied extensively. Yet, research has focused mainly on one aspect of memory, in which older adults memorised information provided to them, neglecting the frequent everyday behaviour in which memory is self-initiated (SI), meaning that individuals memorise information they selected themselves. The present study used a modified spatial span task in which young and older adults memorised spatial sequences they constructed themselves, or random sequences provided to them. The results revealed that young and older adults carefully planned and constructed structured spatial sequences, by minimising distances between successive locations, and by selecting sequences with fewer path crossings and with more linear shapes. Older adults constructed sequences that were even more structured in some aspects. Young and older adults benefited from self-initiation to the same extent, showing similar age-related declines in SI and provided spatial WM. Overall, the study shows that older adults have access to metacognitive knowledge on the structure of efficient WM representations that benefit accuracy, and shows that older adults can use strategic encoding processes efficiently when encoding is SI. More generally, SI WM explores an important aspect of behaviour, demonstrating how older adults shape their environment to facilitate cognitive functioning.     

Can massive but passive exposure to faces contribute to face recognition abilities?

Recent studies have suggested that individuation of other-race faces is more crucial for enhancing recognition performance than exposure that involves categorization of these faces to an identity-irrelevant criterion. These findings were primarily based on laboratory training protocols that dissociated exposure and individuation by using categorization tasks. However, the absence of enhanced recognition following categorization may not simulate key aspects of real-life massive exposure without individuation to other-race faces. Real-life exposure spans years of seeing a multitude of faces, under variant conditions, including expression, view, lighting and gaze, albeit with no subcategory individuation. However, in most real-life settings, massive exposure operates in concert with individuation. An exception to that are neonatology nurses, a unique population that is exposed to--but do not individuate--massive numbers of newborn faces. Our findings show that recognition of newborn faces by nurses does not differ from adults who are rarely exposed to newborn faces. A control study showed that the absence of enhanced recognition cannot be attributed to the relatively short exposure to each newborn face in the neonatology unit or to newborns' apparent homogeneous appearance. It is therefore the quality--not the quantity--of exposure that determines recognition abilities.     

Athletes' perceptions of multilevel changes related to competing at the 2008 Beijing Olympic Games

ObjectivesTaking into account the need for applied research on the most effective ways to prepare Olympians psychologically, the first purpose of this study was to gain more insight into the changes perceived by four athletes in view of their participation in the 2008 Beijing Olympic Games. The second purpose of this study was to illustrate how using a holistic and dynamic approach to the identification of the perceptions of these athletes' Olympic experiences can provide information relevant for the provision of individual ASP support to these athletes.DesignUsing a prospective design athletes' perceptions of changes were gathered prior, during as well as after the Olympic Games.MethodsA combination of interview (pre and post Olympic Games) and self-reporting (during Olympic Games) was used to describe athletes' perceptions of changes occurring at athletic, psychological, psychosocial, academic/vocational level.ResultsResults confirmed in first instance athletes' perceptions of the multifaceted nature of their Olympic experience. In second instance, the use of a dynamic and holistic perspective allowed to identify that participants perceived (a) during the phase prior to the Olympic Games 14 changes at all four levels, (b) during the Olympic Games eight changes at three levels, and (c) during the phase after returning from the Olympic Games 11 changes having occurred at four levels.ConclusionsThis study showed the usefulness of using a dynamic and holistic perspective not only in order to identify athletes' perceptions of their Olympic experiences, but also to enhance ASP practitioners' knowledge on the needs for a holistic and dynamic ASP-support provision. In this way, the effectiveness and efficiency of ASP practitioners working with athletes preparing for, or competing at the Olympic Games could be enhanced.     

Integrating Content and Structure Aspects of the Self: Traits,Values, and Self‐Improvement

Research on the structure of the self has mostly developed separately from research on its content. Taking an integrative approach, we studied two structural aspects of the self associated with self‐improvement—self‐discrepancies and perceived mutability—by focusing on two content areas, traits and values. In Studies 1A–C, 337 students (61% female) reported self‐discrepancies in values and traits, with the finding that self‐discrepancies in values are smaller than in traits. In Study 2 (80 students, 41% female), we experimentally induced either high or low mutability and measured perceived mutability of traits and values. We found that values are perceived as less mutable than traits. In Study 3, 99 high school students (60% female) reported their values, traits, and the extent to which they wish to change them. We found that values predict the wish to change traits, whereas traits do not predict the wish to change values. In Study 4, 172 students (47.7% female) were assigned to one of four experimental conditions in which they received feedback denoting either uniqueness or similarity to others, on either their values or their traits. The results indicated that feedback that one's values (but not traits) are unique affected self‐esteem. Integrating between theories of content and structure of the self can contribute to the development of both.     

REDUCTION OF STATE-ANXIETY BY PETTING ANIMALS IN A CONTROLLED LABORATORY EXPERIMENT

The effect on anxiety of petting an animal and the underlying mechanisms of such an effect were examined by a repeated-measures, within-session experiment with 58 non-clinical participants. Participants were exposed to a stressful situation in the laboratory – the presence of a Tarantula spider, which they were told they might be asked to hold – and then randomly assigned to one of five groups: petting a rabbit, a turtle, a toy rabbit, a toy turtle or to a control group. Participants’ attitudes towards animals were measured as potential moderators. State-anxiety was assessed at baseline, after the stress manipulation, and after the experimental manipulation. The main findings showed that petting an animal reduced state-anxiety. This effect could not be attributed to the petting per se, since it was observed only with animals and not with matched toys. The anxiety-reducing effect of petting an animal applied to both the soft cuddly animals and the hard-shelled ones. The anxiety-reducing effect applied to people with different attitudes towards animals and was not restricted to animal lovers. The discussion addresses possible emotional and cognitive foundations of the observed effects and their implications.     

Motivation to Lead: Research on the Motives for Undertaking Leadership Roles in the Israel Defense Forces (IDF)

Sustained flight operations are likely to produce fatigue and performance decrement in aviators. We assessed changes in cognitive performance using a workhest schedule modeled on successive long-range attack missions. Twelve subjects performed several subtests of the Unified Tri-Service Cognitive Performance Assessment Battery and the Walter Reed Performance Assess- ment Battery 18 times during a simulated sustained operation. The scenario consisted of a 9-hr planning session followed by a 4-hr rest period and a 14-hr daytime mission. After 6 hr of rest, subjects repeated this schedule with a nighttime mission. For two spatial tests, subjects showed linear increases in response rate and one of its components, error rate. Subjects appeared to change strategy as the study progressed, possibly exchanging a higher failure rate for a savings in time. Any tendency to take chances when fatigued may have serious implications for aircrew in sustained operations.     

Mangelnde Eignung bei angehenden Psychotherapeuten

Background

Psychotherapy research has shown that some therapists have systematically more negative outcomes than their colleagues. Many attempts have been made to answer the question of whether these unsuccessful therapists have specific features but as yet no consensus has been reached. Particularly in the field of psychotherapy training this issue has rarely been discussed.

Aims

This study focused on the following questions: how many trainees are incompetent, what characteristics do they have and how to deal with them? How are trainees selected?

Material and methods

In a research expertise on psychotherapy training for the German Ministry of Health, directors of training institutions were interviewed and 129 responses were analyzed using, for example content analysis.

Results

A total of 4–5?% of trainees were judged as being not sufficiently competent to become a psychotherapist. Relevant criteria were mainly the lack of personal and interpersonal competencies.

Conclusions

Future psychotherapy training should focus more and earlier on recognizing and intervening regarding incompetence in the given areas.     

The effects of acute stress on Pavlovian-instrumental transfer in rats

Pavlovian stimuli invigorate ongoing instrumental action, a phenomenon termed the Pavlovian–instrumental transfer (PIT) effect. Acute stressors can markedly enhance the release of corticotropin-releasing factor (CRF), and CRF injection into the nucleus accumbens increases the PIT effect. However, it is unknown whether acute stressors by themselves would amplify the PIT effect. Here, we examined the effects of acute stressors on PIT. Rats first received Pavlovian and instrumental training, and then the impact of the Pavlovian stimuli on instrumental responding was analyzed in the subsequent PIT test. Acute stressors were applied prior to the PIT test. Because the effects of acute stressors critically depend on stressor type and time of day, we used two acute stressors that involved one or several distinct stressors (denoted here as “single” vs. “multiple” stressors) applied either in the light or the dark period of the light:dark cycle. The results revealed that single and multiple stressors applied in the light period did not alter the PIT effect—that is, the ability of an appetitive Pavlovian stimulus to enhance leverpressing—or the basal leverpress rate. When applied in the dark period, single and multiple stressors also did not alter the PIT effect, but they did markedly reduce the basal leverpress rate. Diazepam pretreatment did not counteract the declines in basal instrumental responding in the PIT test that were induced by either a single or multiple stressors. Our findings suggest that acute stressors were unable to amplify the incentive salience of reward-predictive Pavlovian stimuli to activate instrumental responding, but, depending on the time of day of stressor exposure, they did reduce basal instrumental responding.     

The relation between emotion regulation choice and posttraumatic growth

ABSTRACT

Previous research has examined emotion regulation (ER) and trauma in the context of psychopathology, yet little research has examined ER in posttraumatic growth (PTG), the experience of positive psychological change following a traumatic event. ER typically involves decreasing negative affect by engaging (e.g. reappraisal) or disengaging (e.g. distraction) with emotional content. To investigate how ER may support PTG, participants who experienced a traumatic event in the past 6 months completed a PTG questionnaire and an ER choice task in which they down regulated their negative emotion in response to negative pictures of varying intensity by choosing to distract or reappraise. Latent growth curve analyses revealed that an increase in reappraisal choice from low to high subjective stimulus intensity predicted higher PTG, suggesting that individuals who chose reappraisal more as intensity increased reported higher PTG. Findings suggest that reappraisal of negative stimuli following a traumatic event may be a key component of PTG.     

The Effect of Food on Test Anxiety

Proceeding from the literature on eating behavior and anxiety reduction, this study introduces food offering as a mode of intervention aimed at reducing anxiety. Two hypotheses were tested: (1) in an anxiety evoking test situation students will tend to consume more food than in a nonanxiety inducing situation such as a regular lecture; (2) eating food (i.e., peanut butter sandwiches) will result in a reduction of subjects' initial levels of test anxiety. Both hypotheses were confirmed. It also became apparent that the mere offering of food is conducive to some anxiety reduction, presumably due to the effect on the classroom atmosphere.