Does he sound cooperative? Acoustic correlates of cooperativeness

The sound of the voice has several acoustic features that influence the perception of how cooperative the speaker is. It remains unknown, however, whether these acoustic features are associated with actual cooperative behaviour. This issue is crucial to disentangle whether inferences of traits from voices are based on stereotypes, or facilitate the detection of cooperative partners. The latter is likely due to the pleiotropic effect that testosterone has on both cooperative behaviours and acoustic features. In the present study, we quantified the cooperativeness of native French-speaking men in a one-shot public good game. We also measured mean fundamental frequency, pitch variations, roughness, and breathiness from spontaneous speech recordings of the same men and collected saliva samples to measure their testosterone levels. Our results showed that men with lower-pitched voices and greater pitch variations were more cooperative. However, testosterone did not influence cooperative behaviours or acoustic features. Our finding provides the first evidence of the acoustic correlates of cooperative behaviour. When considered in combination with the literature on the detection of cooperativeness from faces, the results imply that assessment of cooperative behaviour would be improved by simultaneous consideration of visual and auditory cues.     

Moderating Effects of Neurocognitive Abilities on the Relationship between Temperament and Global Functioning

Clear links between temperament, psychopathology, and neuropsychological functioning exist; however the interrelations among temperament and neuropsychology, and their impact on functioning in typically developing children is not as well understood. This study examined the degree to which neuropsychological functioning, as measured by the NEPSY, moderates the impact of temperament on global functioning, as measured by the Children's Global Assessment Scale (CGAS), in 74 typically developing preschoolers. Temperament was assessed via parent ratings on the Children's Behavior Questionnaire (CBQ) and teacher ratings on the Temperament Assessment Battery for Children – Revised (TABC-R). Moderation analyses revealed significant interactions between verbal-executive skills and both child emotionality and lack of task persistence in predicting global functioning. The interaction patterns were mostly consistent across measures and indicated that when lower neurocognitive scores were coupled with higher levels of expressed negative emotions and more difficulties in task persistence, global functioning was at its lowest. In contrast better neurocognitive functioning mitigated the impact of high expressed emotions on global functioning. These findings support past literature and indicate that emotional and cognitive functioning interact to effect young children's global functioning.     

Differentiation of self and racial identity

This study explored the relationship between personal identity development and in-group/out-group identities within the sociopsychological context of the USA. Specifically, the study examined the relationship between Bowen’s construct of differentiation of self and Helms’ construct of racial identity for an American sample of 309 undergraduate and graduate students. Insofar as both models refer to a progression from an externally defined sense of self to an internally defined sense of self, it was hypothesized that higher levels of more sophisticated racial identity statuses would be positively associated with higher levels of self-differentiation for both white participants and participants of color. Overall, the findings suggest that for white students, attitudes associated with a more differentiated sense of self are also associated with a more sophisticated racial identity statuses, increased awareness of how white privilege and racism operate, and less internal conflict about one’s own racial identity. The results of this study also indicated that, in general, participants of color who have a more differentiated sense of self endorse attitudes associated with higher statuses of racial identity development, more awareness of societal racism, and less ambivalence about their racial identity. Implications of the findings for the practice of counseling and the training of counseling psychologists are considered.     

The wane of childhood amnesia for autobiographical and public event memories

We modified Bruce, Dolan, and Phillips-Grant's (2000) threshold procedure for determining the wane of childhood amnesia. In two experiments, undergraduates labelled childhood events (e.g., your first permanent tooth came in) as know or recollect memories and estimated their age at the event's occurrence. In both studies the estimated transition from mostly know memories to mostly recollect memories was roughly 4.7 years. This transition estimate was replicated in a sample of adults (ages 24-65 years) with both Bruce et al.'s event-generation task and the Experiment 1a questionnaire. By contrast, in two experiments a transition estimate of roughly 6 years was found for undergraduates' memories of public events (e.g., the Challenger explosion). The wane of childhood amnesia appears to occur around 4.7 years.     

Executive Functions in Preschool Children Born Preterm: Application of Cognitive Neuroscience Paradigms

Although children born preterm are at risk for neuropsychological impairments at school age and adolescence, including difficulties with visual motor integration, spatial/constructional skills, attention, arithmetic, and nonverbal executive functions, specific neuropsychological outcome has not been investigated adequately in preschoolers. Application of cognitive neuroscience tasks offers the opportunity to characterize early executive functions in young children born preterm. In a preliminary sample of 29 preschool children born preterm (M birth gestational age = 32.4 weeks), executive function outcome was compared to that of fullterm controls by contrasting performance on two prototypic delayed-response-type paradigms, Delayed Alternation and Spatial Reversal. Preschoolers born preterm correctly retrieved the reward on fewer trials on Delayed Alternation than did matched controls. Furthermore, preschool children born preterm used problem-solving strategies that included more perseverative errors than controls. These preliminary findings highlight the utility of cognitive neuroscience paradigms to understand neuropsychological outcome in preschool children born preterm and suggest areas of developmental vulnerability that may include dorsolateral prefrontal circuits.     

Left-Right Differences on Timed Motor Examination in Children

Age-related change in the difference between left- and right-side speed on motor examination may be an important indicator of maturation. Cortical maturation and myelination of the corpus callosum are considered to be related to increased bilateral skill and speed on timed motor tasks. We compared left minus right foot, hand, and finger speed differences using the Revised Physical and Neurological Assessment for Subtle Signs (PANESS; Denckla, 1985 Denckla, M. B. 1985. Revised neurological examination for subtle signs. Psychopharmacology Bulletin, 21: 773–779. [PubMed], [Web of Science ®] , [Google Scholar]); examining 130 typically developing right-handed children (65 boys, 65 girls) ages 7–14. Timed tasks included right and left sets of 20 toe taps, 10 toe-heel alternation sequences, 20 hand pats, 10 hand pronate-supinate sets, 20 finger taps, and 5 sequences of each finger-to-thumb apposition. For each individual, six difference scores between left- and right-sided speeded performances of timed motor tasks were analyzed. Left-right differences decreased significantly with age on toe tapping, heel-toe alternations, hand pronation-supination, finger repetition, and finger sequencing. There were significant gender effects for heel-toe sequences (boys showing a greater left-right difference than girls), and a significant interaction between age and gender for hand pronation-supination, such that the magnitude of the left-right difference was similar for younger, compared with older girls, while the difference was significantly larger for younger, compared to older boys. Speed of performing right and left timed motor tasks equalizes with development; for some tasks, the equalization occurs earlier in girls than in boys.     

The Gendered Expressions of Self-Control: Manifestations of Noncriminal Deviance Among Females

The present study explores the relationships between Gottfredson and Hirschi's (1990 Gottfredson , Michael R. and Hirschi , Travis . 1990 . A General Theory of Crime . Stanford , CA : Stanford University Press . [Google Scholar]) concept of low self-control and two forms of deviance more common among females than males, borderline personality characteristics and eating disorders. Ordinary least squares regression models revealed that self-control was significantly associated with both borderline personality characteristics and eating disorder symptoms among a sample of 161 female undergraduates. The findings of the present study highlight the potential utility in expanding our focus of the effects of low self-control beyond traditional analogous behaviors, especially when attempting to understand female behavior.     

Capturing the Child’s Perspective: A Review of Self-Report Measures used with Children

Recent policy extends the patient-professional collaboration in making health care decisions to children. As a result, the development of self-reporting measures allowing children to express their concerns is growing. A literature review identified 33 self-report measures for children among a range of disciplines. While these tools allow children to be part of the rehabilitation process, the information obtained does not seem to capture what matters to children. This is particularly true for children with mental illness whose views are often ignored. More research is needed on clinical approaches that access the unique experiences of children with mental illness.