ANS acuity and mathematics ability in preschoolers from low‐income homes: contributions of inhibitory control

Recent findings by Libertus, Feigenson, and Halberda (2011) suggest that there is an association between the acuity of young children's approximate number system (ANS) and their mathematics ability before exposure to instruction in formal schooling. The present study examined the generalizability and validity of these findings in a sample of preschoolers from low‐income homes. Children attending Head Start (N = 103) completed measures to assess ANS acuity, mathematics ability, receptive vocabulary, and inhibitory control. Results showed only a weak association between ANS acuity and mathematics ability that was reduced to non‐significance when controlling for a direct measure of receptive vocabulary. Results also revealed that inhibitory control plays an important role in the relation between ANS acuity and mathematics ability. Specifically, ANS acuity accounted for significant variance in mathematics ability over and above receptive vocabulary, but only for ANS acuity trials in which surface area conflicted with numerosity. Moreover, this association became non‐significant when controlling for inhibitory control. These results suggest that early mathematical experiences prior to formal schooling may influence the strength of the association between ANS acuity and mathematics ability and that inhibitory control may drive that association in young children.     

Subjectivity,health and gender: an approach to chronified pain through the Psychosocial Gender Diagnostic methodology / Subjetividad,salud y género: una aproximación al dolor cronificado mediante la metodología del Diagnóstico Psicosocial de Género

Abstract

This paper bases itself on a psychological perspective to make a theoretical and methodological proposal that shifts the concept of health towards the crossing point between biomedical and social sciences. To that end, it is suggested that the concept of Subjectivity should be placed at the centre of the discipline of psychology, understanding it from the theoretical perspective that intersects between post-structuralism, psycho-dynamic theory and gender. The objective of the article is to make this proposal through a case study about chronic pain without organic cause, an emerging, contemporary, controversial malaise that is becoming increasingly common, called Fibromyalgia in the biopsychomedical field, and which affects mainly — but not only — women. In order to pursue this goal, a new methodological instrument was developed: the psychosocial gender diagnostic, oriented toward capturing the dynamics of chronic pain. This methodology facilitates the integration of the connections between subjectivity, gender and health, while at the same time problematizes the excessive medicalization of modern day life.     

The development of emotional face processing during childhood

Our facial expressions give others the opportunity to access our feelings, and constitute an important nonverbal tool for communication. Many recent studies have investigated emotional perception in adults, and our knowledge of neural processes involved in emotions is increasingly precise. Young children also use faces to express their internal states and perceive emotions in others, but little is known about the neurodevelopment of expression recognition. The goal of the current study was to determine the normal development of facial emotion perception. We recorded ERPs in 82 children 4 to 15 years of age during an implicit processing task with emotional faces. Task and stimuli were the same as those used and validated in an adult study; we focused on the components that showed sensitivity to emotions in adults (P1, N170 and frontal slow wave). An effect of the emotion expressed by faces was seen on the P1 in the youngest children. With increasing age this effect disappeared while an emotional sensitivity emerged on N170. Early emotional processing in young children differed from that observed in the adolescents, who approached adults. In contrast, the later frontal slow wave, although showing typical age effects, was more positive for neutral and happy faces across age groups. Thus, despite the precocious utilization of facial emotions, the neural processing involved in the perception of emotional faces develops in a staggered fashion throughout childhood, with the adult pattern appearing only late in adolescence.     

Scientific societies and research integrity: What are they doing and how well are they doing it?

Scientific societies can play an important role in promoting ethical research practices among their members, and over the past two decades several studies have addressed how societies perform this role. This survey continues this research by examining current efforts by scientific societies to promote research integrity among their members. The data indicate that although many of the societies are working to promote research integrity through ethics codes and activities, they lack rigorous assessment methods to determine the effectiveness of their efforts. An earlier version of this paper was presented at the AAAS-Office of Research Integrity (ORI) meeting in Washington DC on the theme: “The Role and Activities of Scientific Societies in Promoting Research Integrity” held on April 10–11, 2000.     

CROSS-CULTURAL STUDIES OF TEMPERAMENT: TEMPERAMENT IN GREEK INFANTS

Three infant cohorts from Greek cultural backgrounds were compared with an Anglo-Australian infant cohort across 9 dimensions of temperament using Australian and Greek versions of the revised Infant Temperament Questionnaire (Carey and McDevitt 1978). Infants from a Greek cultural background were generally considered to be more ‘difficult’ than the Anglo-Australian infants on the temperament dimensions of Approach, Adaptability, Mood and Distractibility even after the effects of social class were controlled statistically. The reported cross-cultural differences were discussed with regard to the potential influence on temperament ratings of ethnicity and culture, social status, psychobiological factors, migrant status, social assimilation, and questionnaire characteristics.     

Socio-cognitive conflict and peer interaction: Development of compensation

The purpose of this study was to examine under which social conditions cognitive development of children at the same cognitive development level will be stimulated. One hundred and two children (mean age 7.8 years), understanding conversation of area quantity, but not yet able to grasp the compensatory relationships between the dimensions of length and width of an area, participated in two experimental conditions in which the developmental processes of socio-cognitive conflict and coordination were evoked. The results indicate that the resolution of the socio-cognitive conflict and the occurence of coordination is higher in individual than in dyadic conditions, and higher in (inter-group) competitive and (adult) supervised conditions than in conditions were task execution was left to the spontaneous initiative of the children themselves. Cognitive developmental progress generalized from the area concept to liquid and mass concepts.     

The Effects of Psychological Trauma on Children and Adolescents

In this review the authors examine the cognitive, affective, behavioral, and somatic-physiological effects documented in the literature as sequelae of overwhelming life events in children and adolescents. Findings from the literature are compared with the current formulations of Post-traumatic Stress Disorder (PTSD) in the Diagnostic and Statistical Manual of Mental Disorders, third edition, revised (DSM-III-R, American Psychiatric Association, 1987) as this diagnostic category applies to children. Responses likely to be observed in children and adolescents who have been exposed to traumatic events are discussed. Suggestions for future research and counseling practice are presented     

Prosopagnosia: A face-specific disorder

A follow-up study of a patient, WJ, with a very severe prosopagnosia is reported. After a stroke he became a farmer and acquired a flock of sheep. He learnt to recognize and name many of his sheep, and his performance on tests of recognition memory and paired-associate learning for sheep was significantly better than on comparable tests using human face stimuli. It is concluded that in some instances prosopagnosia can be a face-specific disorder.     

Effects of speech rate on the absolute and relative timing of apraxic and conduction aphasic sentence production

The purpose of this investigation was to provide a constructive replication of the Kent and McNeil (1987, In Phonetic approaches to speech production in aphasia and related disorders. San Diego: College-Hill Press) study of the speech timing characteristics of apraxic and conduction aphasic speakers. Acoustic analysis was used to obtain absolute utterance durations, segment durations, and vowel formant trajectories from utterances produced under control, fast, and slow rate conditions. Segment-to-whole ratios and slope values were calculated. Results support the hypothesis presented by Kent and McNeil (1987) that there is a phonetic-motoric component contributing to the speech patterns of both the apraxic and conduction aphasic speakers sampled. Theories of rate control in normal and disordered speakers are discussed.     

The cognitive representation of an event involving human motion

Human motion is analyzed as a function of the temporal pattern of relative stability and instability of the body in relation to its supporting ground. The cognitive representation of an event unit involving human motion is described as some small number of relatively stable, preparatory motions, followed by an unstable, completing motion. Two experiments tested the coherence of the preparatory motion (s)-completing motion structure, and the visual conditions under which an unstable motion is encoded as the completing motion of an event unit. Preparatory-completing structures were recognized more easily than completing-preparatory structures. The offset of contour motion at the center of an unstable motion was found to be an important variable in the encoding of a completing motion.