Remapping the cognitive and neural profiles of children who struggle at school

Our understanding of learning difficulties largely comes from children with specific diagnoses or individuals selected from community/clinical samples according to strict inclusion criteria. Applying strict exclusionary criteria overemphasizes within group homogeneity and between group differences, and fails to capture comorbidity. Here, we identify cognitive profiles in a large heterogeneous sample of struggling learners, using unsupervised machine learning in the form of an artificial neural network. Children were referred to the Centre for Attention Learning and Memory (CALM) by health and education professionals, irrespective of diagnosis or comorbidity, for problems in attention, memory, language, or poor school progress (n = 530). Children completed a battery of cognitive and learning assessments, underwent a structural MRI scan, and their parents completed behavior questionnaires. Within the network we could identify four groups of children: (a) children with broad cognitive difficulties, and severe reading, spelling and maths problems; (b) children with age‐typical cognitive abilities and learning profiles; (c) children with working memory problems; and (d) children with phonological difficulties. Despite their contrasting cognitive profiles, the learning profiles for the latter two groups did not differ: both were around 1 SD below age‐expected levels on all learning measures. Importantly a child's cognitive profile was not predicted by diagnosis or referral reason. We also constructed whole‐brain structural connectomes for children from these four groupings (n = 184), alongside an additional group of typically developing children (n = 36), and identified distinct patterns of brain organization for each group. This study represents a novel move toward identifying data‐driven neurocognitive dimensions underlying learning‐related difficulties in a representative sample of poor learners.     

Consistencies in sex differences on the Cognitive Abilities Test across countries,grades, test forms,and cohorts

Background Strand, Deary, and Smith (2006) reported an analysis of sex differences on the Cognitive Abilities Test (CAT) for over 320,000 UK students 11–12 years old. Although mean differences were small, males were overrepresented at the upper and lower extremes of the score distributions on the quantitative and non‐verbal batteries and at the lower extreme of the verbal battery. Aims We investigate whether these results were unique to the UK or whether they would be seen in other countries, at other grades, cohorts, or forms of the test. Sample The sample consisted of three nationally representative cohorts of US students in grades 3 through 11 (total N = 318,599) for the 1984, 1992, and 2000 standardizations of the US version of the CAT. Methods We replicated and extended the Strand et al. (2006) results by comparing the proportions of males and females at each score level across countries (UK vs. US), grades (3–11), and cohorts/test forms (Forms 4, 5, and 6 standardized in 1984, 1992, and 2000, respectively). Results The results showed an astonishing consistency in sex differences across countries, grades, cohorts, and test forms. Conclusions Implications for the current debate about sex differences in quantitative reasoning abilities are discussed.     

Emotion Regulation: The Interplay of Culture and Genes

Given the mounting empirical evidence to support both the cultural and biological shaping of emotional processes, there is a clear need to integrate these determinants of emotional processes. Much in the same vein as these efforts, in our research on gene‐culture interactions, we have examined how cultural and biological factors jointly influence emotion regulation. The present paper specifically aims to present research considering both cultural and genetic factors as two interacting influences that shape emotion regulation. A series of studies conducted to test the gene‐culture interaction involving OXTR rs53576 consistently show that individuals with the variant that is associated with socio‐emotional sensitivity tend to utilize culturally normative forms of emotion regulation more than those without it. These findings underscore the importance of considering the interplay between socio‐cultural and genetic factors that shape social behaviors.     

Assessment of Alexithymia With the Rorschach Comprehensive System: The Rorschach Alexithymia Scale (RAS)

The Bene-Anthony Family Relations Test was administered to twenty normal, twenty-seven school disordered, and ten institutionalized emotionally disturbed preadolescent boys. Significant differences were obtained between and within groups. The more disturbed children tended to report more positive perceptions of family relationships, particularly their relationships with their oldest siblings. However, institutionalized children tended to perceive themselves more negatively than normal or school disordered children in the context of family relationships. Normal children, but not institutionalized children, tended to perceive their relationships with their oldest siblings as significantly more negative than their relationships to their parents. The data were interpreted as reflecting sibling rivalry and the operation of psychodynamic defenses.     

The Interrater Reliability of Elizur's Hostility Systems and Holt's Aggression Variables: A Meta-Analytical Review

TAT performances of mathematicians, creative writers and physicians were compared by means of Pine's (1960) system for rating amount, integration, and directness of drive expression; and also in terms of expression of affect. Writers were most expressive, followed by mathematicians and then physicians. Mathematicians relied relatively heavily upon use of direct, socialized forms of drive content, while physicians emphasized indirect or disguised forms more than other Ss. These emphases appeared to have defensive and integrative functions, as did the physicians' generally suppressive style. The writers showed no comparable emphases on direct or indirect expression. There were no inter-group differences in overall adjustment Pine's scoring system appears to have considerable potential for comparisons of this kind.     

Impact of Card Rotation on the Frequency of Rorschach Reflection Responses

This study examines evidence for boundary disturbances in depressive, borderline, and schizophrenic hospitalized inpatients. Certain thought disorder signs on the Rorschach are reconceptualized as indices of boundary formation, which is defined as the capacity to create particular distinctions along women bipolar coordinate of experience where previously no distinction was possible, and which defines each cluster of experience through a maintenance of differential functioning. The borderline group scored significantly high on the indices of laxness and moderately severe inner-outer boundary formation. The schizophrenic group scored significantly higher on indices of self-other and somewhat higher on severe inner-outer boundary disturbance. Schizophrenics may be organized at a level of self-other boundary formation which subsumes inner-outer boundary formation, while the borderline group is organized at a level of inner-outer boundary formation.     

A principal components analysis of Rorschach aggression and hostility variables

We examined the structure of 9 Rorschach variables related to hostility and aggression (Aggressive Movement, Morbid, Primary Process Aggression, Secondary Process Aggression, Aggressive Content, Aggressive Past, Strong Hostility, Lesser Hostility) in a sample of medical students (N= 225) from the Johns Hopkins Precursors Study (The Johns Hopkins University, 1999). Principal components analysis revealed 2 dimensions accounting for 58% of the total variance. These dimensions extended previous findings for a 2-component model of Rorschach aggressive imagery that had been identified using just 5 or 6 marker variables (Baity & Hilsenroth, 1999; Liebman, Porcerelli, & Abell, 2005). In light of this evidence, we draw an empirical link between the historical research literature and current studies of Rorschach aggression and hostility that helps organize their findings. We also offer suggestions for condensing the array of aggression-related measures to simplify Rorschach aggression scoring.     

An investigation of the determinants of motor contagion in preschool children

The influence of action perception on action execution has been demonstrated by studies of motor contagion in which the observation of an action interferes with the concurrent execution of a different action. The current study extends prior work on the extent of motor contagion in early childhood, a period of development when the effects of action observation on action execution may be particularly salient. During a classroom story reading, children (mean age 4.8 years) were familiarized with two different-colored bears, one of which was used as a seemingly animate hand puppet while the other bear remained lifeless and inanimate. Children then completed a task in which they were instructed to move a stylus on a graphics tablet in the presence of background videos of each bear making horizontal arm movements which had biological (human-moved) or non-biological (machine-moved) origins. Motor contagion was assessed as the variability of stylus movements in the horizontal axis when children were instructed to produce vertical stylus movements. Significant levels of motor contagion were seen when children observed the previously animate bear in the non-biological motion condition and when they observed the previously inanimate bear in the biological motion condition. For future studies of social perception, this finding points to the potential importance of examining mismatches between prior experience with (or knowledge about) a particular agent and the subsequent behavior of that agent in a different context.