Sleep-dependent consolidation of procedural motor memories in children and adults: the pre-sleep level of performance matters

In striking contrast to adults, in children sleep following training a motor task did not induce the expected (offline) gain in motor skill performance in previous studies. Children normally perform at distinctly lower levels than adults. Moreover, evidence in adults suggests that sleep dependent offline gains in skill essentially depend on the pre-sleep level of performance. Against this background, we asked whether improving children's performance on a motor sequence learning task by extended training to levels approaching those of adults would enable sleep-associated gains in motor skill in this age group also. Children (4-6 years) and adults (18-35 years) performed on the motor sequence learning task (button-box task) before and after ~2-hour retention intervals including either sleep (midday nap) or wakefulness. Whereas one group of children and adults, respectively, received the standard amount of 10 blocks of training before retention intervals of sleep or wakefulness, a further group of children received an extended training on 30 blocks (distributed across 3 days). A further group of adults received a restricted training on only two blocks before the retention intervals. Children after standard training reached lowest performance levels, whereas in adults performance after standard training was highest. Children with extended training and adults after reduced training reached intermediate performance levels. Only at these intermediate performance levels did sleep induce significant gains in motor sequence skill, whereas performance did not benefit from sleep in the low-performing children or in the high-performing adults. Spindle counts in the post-training nap were correlated with performance gains at retrieval only in the adults benefitting from sleep. We conclude that, across age groups, sleep induces the most robust gain in motor skill at an intermediate pre-sleep performance level. In low-performing children sleep-dependent improvements in skill may be revealed only after enhancing the pre-sleep performance level by extended training.     

Keeping Academic Field Researchers Safe: Ethical Safeguards

Competent risk management is central to the ethical conduct and profitability of organisations including universities. Recent UK research highlights the risks of physical and psychological harm and emotional distress for researchers and the importance of developing strategies to deal with these issues prior to data being collected. Actual numbers of incidents of researcher harm in Australian universities are unavailable; however anecdotal evidence and Bloor et al.’s (2010) case studies suggest that this is a significant issue. They recommended risk management practices such as training about researcher safety, pre-trip security briefings, established call-back systems, working in pairs, and compulsory de-briefings are recommended. Yet Australian universities do little to protect the safety of field researchers when they collect data in private locations, such as participants’ homes and when dealing with emotionally challenging content. This is at odds with the duty of care requirements on employers in current state based occupational health and safety (OHS) laws where breaches attract considerable penalties. The failure to adequately address the potential safety hazards and manage the risks associated with data collection places Australian universities in a vulnerable position, and possibly at risk of litigation, in their duty to adequately protect researchers. The paper presents a review of the international literature and draws on the UK research. Conceptual modelling is provided to illustrate the risk to universities if researchers are harmed in the field. Finally, the paper concludes with a call for further research to develop robust policy and practice that protects the field researcher.     

Situational countertransference

Situational Countertransference refers to those responses on the part of the therapist that are generated primarily by severe, though temporary, distresses in the therapist's personal life. It has been this writer's experience that many patients are quite attuned to the inner turmoil of their therapist, and that they will react to it in a variety of ways, which will be described. Moreover, a comparison of the level of functioning of two similar therapy groups over the course of nine months found that the group which had inadvertently learned the source of their therapist's distress functioned significantly better than the group which ostensibly knew nothing about it.     

Juror decision making: A case of attitude change mediated by authoritarianism

For a jury to reach a unanimous decision, certain individuals must change their attitudes with regard to the defendant's guilt during deliberations. Because these changers are the key to the group decision-making process, they were carefully scrutinized to ascertain demographic or personality characteristics which might be mediating their behavior. In three experiments, two using college students as subjects and one using Philadelphia Court of Common Pleas jury pool members, it was found that authoritarians changed their attitude with regard to the defendant's guilt more than equalitarians. Further, most of these “changers” were aware they had changed their attitude. There was no generalizable evidence for the proposition that authoritarians are more likely to favor a guilty verdict.     

Race,Gender, and Sexual Orientation in the HIV/AIDS Epidemic: Evaluating an Intervention for Leaders of Diverse Communities

This article discusses the implementation and evaluation of an HIV/AIDS educational intervention for college student leaders in African-American, Latino, feminist, and gay and lesbian campus organizations.     

Words may not be enough! No increased emotional Stroop effect in obsessive-compulsive disorder

Conflicting evidence has been obtained whether or not patients diagnosed with obsessive-compulsive disorder (OCD) share an attentional bias towards disorder-related stimuli. Some of these inconsistencies can be accounted for by suboptimal stimuli selection. In consideration of the heterogeneity of OCD, we investigated Stroop interference effects for two classes of OCD items (i.e., washing and checking) in 23 OCD patients and 23 healthy controls. In order to cover prevalent OCD concerns, item compilation was based on experts' appraisals. Patients neither displayed greater immediate as well as delayed Stroop interference nor any bias for OCD and subtype-congruent stimuli. On the contrary, for washing-related items, OCD patients, and here especially washers, displayed facilitation relative to healthy controls. Although the present study at first sight refutes the notion of an attentional bias in OCD in contrast to other anxiety disorders, several potential moderators need to be considered before this account is ultimately dismissed. In particular, an attentional bias may only be elicited using visual material that is more attention-grabbing than verbal stimuli. Finally, blockwise instead of random item administration and greater consideration of individual relevance may be crucial prerequisites for the effect to emerge.     

Kosteneffektivität ambulanter Psychotherapie

Background

There is a lack of cost-effectiveness analyses (CEA) of psychotherapeutic treatments.

Material and methods

Cost-effectiveness analysis was applied to a sub-sample of 122 psychotherapy outpatients who participated in a large longitudinal study on outpatient psychotherapy (TRANS-OP study). Participants received either psychodynamic psychotherapy (PD, n=69) or cognitive behavioral therapy (CBT, n=53). Effectiveness (change in symptomatic impairment over 2 years) was assessed via the German version of the Outcome Questionnaire (OQ-45.2). Direct health care costs during a 2-year period (psychotherapy and other health care utilizations) were obtained from health insurance claims. Cost-effectiveness analysis methods included incremental cost-effectiveness ratios (ICER) and the net benefit regression approach.

Results

Cost-effectiveness analyses showed no significant differences between the two treatments, neither head-to-head, nor with regard to advantages in certain subgroups of psychotherapy outpatients. A slight dominance of CBT in costs was not maintained after controlling for covariates.

Conclusion

Provided that pivotal covariates such as treatment need are taken into account, cost-effectiveness analyses can contribute to a more equitable distribution of psychotherapeutic resources.     

No Retrieval-Induced Forgetting Under Stress

ABSTRACT— Stress affects memory, yet no study has investigated the effects of stress on memory inhibition: Remembering not only facilitates later recall, but also inhibits retrieval of related material, a phenomenon known as retrieval-induced forgetting. We investigated the effects of stress on this mechanism, which is thought to adaptively guide memory selection. Participants learned categorized lists and were then exposed to either a psychosocial laboratory stressor or a cognitively challenging control treatment. They then actively retrieved parts of the previously learned material. Finally, memory for all initially learned items was tested. In the stress group, unlike in the control group, intervening retrieval practice did not impair final recall. Moreover, salivary cortisol levels increased and psychological well-being decreased in the stress group only. Thus, psychosocial stress abolishes retrieval-induced forgetting. This effect may result from stress-induced hormone release from the hypothalamic-pituitary-adrenal (HPA) axis and may have implications for educational, legal, and clinical issues.     

Auditory location negative priming: A case of feature mismatch

In an auditory four-alternative forced choice localization task, participants had to localize one of two simultaneously presented sounds while ignoring the location of the second sound. Negative priming—that is, sloweddown responses to a location that had to be ignored in the previous trial—was found only when the sound at the repeated location changed between prime and probe. There was also no increase in prime response errors to the probes of ignored repetition trials. These findings allow for the conclusion that auditory location priming is caused by feature mismatch only and that other mechanisms, such as inhibition of ignored locations or episodic retrieval of transfer-inappropriate prime information, do not play a role. The research reported in this article was supported by a grant from the Deutsche Forschungsgemeinschaft (Ma 2610/2-1).