Recognition of dance-like actions: Memory for static posture or dynamic movement?

Dance-like actions are complex visual stimuli involving multiple changes in body posture across time and space. Visual perception research has demonstrated a difference between the processing of dynamic body movement and the processing of static body posture. Yet, it is unclear whether this processing dissociation continues during the retention of body movement and body form in visual working memory (VWM). When observing a dance-like action, it is likely that static snapshot images of body posture will be retained alongside dynamic images of the complete motion. Therefore, we hypothesized that, as in perception, posture and movement would differ in VWM. Additionally, if body posture and body movement are separable in VWM, as form- and motion-based items, respectively, then differential interference from intervening form and motion tasks should occur during recognition. In two experiments, we examined these hypotheses. In Experiment 1, the recognition of postures and movements was tested in conditions in which the formats of the study and test stimuli matched (movement–study to movement–test, posture–study to posture–test) or mismatched (movement–study to posture–test, posture–study to movement–test). In Experiment 2, the recognition of postures and movements was compared after intervening form and motion tasks. These results indicated that (1) the recognition of body movement based only on posture is possible, but it is significantly poorer than recognition based on the entire movement stimulus, and (2) form-based interference does not impair memory for movements, although motion-based interference does. We concluded that, whereas static posture information is encoded during the observation of dance-like actions, body movement and body posture differ in VWM.     

Working memory effects in speeded RSVP tasks

The present paper examines the effects of memory contents and memory load in rapid serial visual presentation (RSVP) speeded tasks, trying to explain previous inconsistent results. We used a one target (Experiment 1) and a two-target (Experiment 2) RSVP task with a concurrent memory load of one or four items, in a dual-task paradigm. A relation between material in working memory and the target in the RSVP impaired the identification of the target. In Experiments 3 and 4, the single task was to determine whether any information in memory matched the target in the RSVP, while varying the memory load. A match was detected faster than a non-match, although only when there was some distance between targets in the RSVP (Experiment 4). The results suggest that memory contents automatically capture attention, slowing processing when the memory contents are irrelevant to the task, and speeding processing when they are relevant.     

Reliability of 2D:4D measurements using a direct method suitable for clinical settings

The second to fourth digit ratio (2D:4D) indicates androgen exposure during early development. Numerous methods are used in the assessment of 2D:4D, however, some are not reliable enough and others are difficult to perform in large epidemiological studies. We assessed the reliability of 2D:4D using a direct method with a caliper, and compared it with a computer-assisted analysis on scanned images. Both methods were moderately correlated, but the scan method produced slightly lower 2D:4D. The main source of variation was differences between subjects (real variation). Reliability was higher among men and among younger participants. All reliability coefficients were higher than 0.8 when three repeated measurements were averaged. Our results suggest that reliability is influenced by participants’ characteristics. Digit ratios determined directly with calipers are reliable when repeated measurements are averaged.     

Psychometric Properties of the Child Posttraumatic Cognitions Inventory in a Sample of Brazilian Children

Cognitive models of trauma propose that maladaptive cognitions in children and adolescents are causally implicated in the unfolding and maintenance of posttraumatic response. The objective of this study was to evaluate the psychometric properties of the Child Posttraumatic Cognitions Inventory (CPTCI). The sample included 131 children and adolescents. The psychometric properties of the CPTCI were examined, including reliability and convergent validity. The results showed high internal consistency for both CPTCI total scale (α = .90) and its subscales (CPTCI–PC α = .88 and CPTCI–SW α = .79) and a 2-component solution explaining 37.63% of the variance of CPTCI. Convergent validity evidence was obtained through correlations with the Trauma Symptom Checklist for Children and Children’s Depression Inventory. Findings suggest that CPTCI instruments are reliable and had adequate evidence of validity.     

The subjective experience of retrieval-induced forgetting

The objective was to examine whether the lower accessibility of studied items (Rp?) that follows retrieval practice with studied items from the same category (Rp+; retrieval-induced forgetting) is correctly monitored by our cognitive system. If monitored, lower confidence for Rp? items would be expected which, in turn, would allow the control of the retrieval-induced forgetting through the report option. In Experiment 1 the standard retrieval-practice paradigm with categorised word lists was followed by a recognition test with confidence rating and the option to report or withhold the answer. Accuracy showed retrieval-induced forgetting, but there were no differences in confidence. The report option did not affect retrieval-induced forgetting. The confidence–accuracy dissociation could be due to a correct monitoring of the retrieval-induced forgetting joined with a factor that incorrectly increases confidence for Rp? items. Familiarity with the practised category was proposed as this factor and tested in Experiment 2. Despite presenting the categories more times during the retrieval-practice phase to increase their familiarity, confidence ratings were unaffected. In conclusion, this research suggests that retrieval-induced forgetting was not monitored, giving rise to a confidence–accuracy dissociation.     

Therapeutic reactivity to confidentiality with HIV positive clients: bias or epidemiology?

Therapeutic reactivity among psychology trainees (N=68) was ascertained by their response to 10 clinical vignettes depicting clients with HIV who are sexually active with uninformed partners. This construct accounts for the relative change in decisions to maintain the confidentiality of clients who acknowledge safe versus unsafe sexual behavior. As anticipated, an analysis of variance revealed a significant main effect for safety and a significant 3-way interaction (Sexual Orientation X Safety X Gender). Subsequent analyses revealed that trainees exhibit the highest level of therapeutic reactivity toward heterosexual male clients, and the lowest reactive stance toward heterosexual female clients. Although the decisional pattern evidenced toward heterosexuals seems congruent with epidemiological estimates of risk, the decisions toward lesbians and gay males appear more likely a function of bias. The ethical implications of these findings are discussed.     

A multisource approach to self-critical vulnerability to depression: the moderating role of attachment

The present study investigated the effects of self-criticism, dependency, and attachment variables in depression among couples. We utilized a multisource design that involved self-reports and spouse reports of personality and depression. This approach enabled us to explore the patterns of relations between self-reported and the spouse's report of the partner's view of self-criticism, dependency, and attachment dimensions, as well as the contribution of the latter to the moderation of distress. Participants were 120 couples in their first marriages. It was found that: (1) Self- and spouses' reported self-criticism are both associated with depression; (2) negative assessments of personality factors and attachment models by the self and spouse contribute uniquely in predicting depressive symptomatology; and (3) beyond the covariation between target's depression and marital maladjustment, attachment models of self and of other as reported by both the self and spouse moderate the effects of self-reported personality vulnerability on depressive symptomatology. Our results indicate that self-ratings and ratings by others must both be considered in the context of depression in close interpersonal relationships. Beyond the methodological implications of multisource data, our findings support the view of depression as an interpersonal process.     

The comorbidity of ADHD in a community sample of children aged 6 through 16 years

Secondary analyses of the data from the Puerto Rico Child Psychiatry Epidemiologic Study were undertaken to provide information on the comorbidity patterns of ADHD. A high level of comorbidity was found among ADHD and other diagnostic categories, particularly the conduct/oppositional group. Comorbidity was associated with level of impairment and with service utilization.