Can exocentric direction be dissociated from its exocentric distance in virtual environments?

We conducted two psychophysical experiments to investigate the relationship between processing mechanisms for exocentric distance and direction. In the first experiment, the task was to discriminate exocentric distances. In the second one, the task was to discriminate exocentric directions. The individual effects of distance and direction on each task were dissociated by analyzing their corresponding psychophysical functions. Under stereoscopic-viewing conditions, distance judgments of exocentric intervals were not affected by exocentric direction. However, direction judgments were influenced by the distance between the pair of stimuli. Therefore, themechanism processing exocentric direction is dependent on exocentric distance, but the mechanism processing exocentric distance does not require exocentric direction measures. As a result, we suggest that exocentric distanceand directionare hierarchically processed, with distance preceding direction. Alternatively, and more probably, a necessary condition for processing the exocentric direction between two stimuli may be to know the location of each of them.     

Depressed Adolescents and Comorbid Psychiatric Disorders: Are There Differences in the Presentation of Depression?

Patterns and correlates of comorbidity, as well as differences in manifest depressive profiles were investigated in a sample of depressed adolescents. A sub-sample of the youth were characterized as belonging to either a Pure depression group, an Internalizing group (depression and co-occurring internalizing disorders), or an Externalizing group (depression and co-occurring externalizing disorders). Item response theory (IRT) and differential item functioning (DIF) were used to assess whether the depressed adolescents from the different comorbidity groups presented with different depressive symptoms. Results indicated that the comorbidity groups were meaningfully distinct in terms of psychosocial correlates as well as showed differences in depressive symptom profiles as informed by DIF analyses. In particular, the comorbidity groups differed in terms of presentation of psychomotor changes and cognitive impairments. Implications for assessment are discussed.

Quality of Life and General Health Perception in Women with Obesity

The purpose of this study was to determine the differences in general health status and quality of life between patients who present “non-normative eating behaviours” (namely, binge eating disorder, night eating syndrome, sweet /fat food cravings and continuous nibbling) and patients without these eating behaviour characteristics. A cohort of 168 women with obesity, all candidates to bariatric surgery, aged between 15 and 65 (M = 39.04; SD = 10.86), with a body mass index ranging between 30.37 and 80.65 (M = 48.79; SD = 8.37), was studied. Participants answered to a clinical interview, to SF-36 and to ORWELL-97, after their informed consent. Results suggest that women with obesity reporting binge eating disorder, night eating syndrome and continuous nibbling show poorer general health status and worst quality of life than those who do not present these “non-normative eating behaviours”. Moreover, the general health status and the quality of life of patients with sweet/fat food cravings do not differ from those who do not report this eating behaviour. Nevertheless, patients reporting the eating behaviours studied do not differ from the others regarding their body mass index.     

Building Alliances with (In)Voluntary Clients: A Study Focused on Therapists’ Observable Behaviors

This study aimed to compare therapists’ observable behaviors to promote alliances with involuntary and voluntary clients during brief family therapy. The therapists’ contributions to fostering alliances were rated in sessions 1 and 4 using videotapes of 29 families who were observed in brief therapy. Using the System for Observing Family Therapy Alliances, trained raters searched for specific therapist behaviors that contributed to or detracted from the four alliance dimensions: engagement in the therapeutic process, an emotional connection with the therapist, safety within the therapeutic system, and a shared sense of purpose within the family. The results showed that when working with involuntary clients, therapists presented more behaviors to foster the clients’ engagement and to promote a shared sense of purpose within the family. However, in the fourth session, the therapists in both groups contributed to the alliance in similar ways. The results are discussed in terms of (a) the therapists’ alliance‐building behaviors, (b) the specificities of each client group, and (c) the implications for clinical practice, training, and research.     

Influence of Different Sitting Positions on Healthy Infants' Reaching Movements

The authors analyze the influence of different sitting positions (ring and flexion) on the reaching performance (spatiotemporal variables) of full-term infants 6 and 7 months old. In addition, they correlated level of trunk control, measured by the Segmental Assessment of Trunk Control, with performance during reaching. The different sitting positions only influenced the reaching movements of 6-month-old infants, who showed the best performance in the ring position. However, this influence was observed only for the trunk displacement, deceleration time, movement units, straightness index and mean velocity. In contrast, there was no influence of positions on 7-month-old infants’ reaching performance. Regarding the correlations, it was observed that infants with more level of trunk control showed a better performance when reaching, regardless of position and the age assessed.     

Empathy is Associated with Meaning of Life and Mental Health Treatment but not Religiosity Among Brazilian Medical Students

The purpose of this study was to investigate the influence of spirituality, religiosity, personal beliefs, and previous contact with health issues on the level of empathy in medical students. Jefferson Scale of Empathy—Student Version, WHOQOL-Spirituality, Religiousness and Personal Beliefs, and Duke University Religion Index were applied to 285 Brazilian medical students. The findings suggest that meaning of life and previous mental health treatment but not Religiosity were positively related to empathy. We suggest that more attention should be given for prevention and treatment of mental health issues, and further studies are needed to understand and replicate these findings.     

Are Pseudonyms Ethical in (Science) Publishing? Neuroskeptic as a Case Study

Science and Engineering Ethics - The blogosphere is full of personalities with masks, or pseudonyms. Although not a desired state of public communication, one could excuse the use of pseudonyms in...