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Descriptors:
Brain Hemisphere Functions; Attention Deficit Hyperactivity Disorder; Child Behavior; Brain; Neurology; Inhibition; Executive Function; Infants; Check Lists; Short Term Memory; Diagnostic Tests; Correlation; Young Children; Cognitive Processes; Emotional Response; Planning; Age Differences; Predictor Variables; Foreign Countries

Abstract:
Background: Neuroimaging findings have provided evidence for a relation between variations in brain structures and Attention Deficit/Hyperactivity Disorder (ADHD). However, longitudinal neuroimaging studies are typically confined to children who have already been diagnosed with ADHD. In a population-based study, we aimed to characterize the prospective association between brain structures measured during infancy and executive function and attention deficit/hyperactivity problems assessed at preschool age. Methods: In the Generation R Study, the corpus callosum length, the gangliothalamic ovoid diameter (encompassing the basal ganglia and thalamus), and the ventricular volume were measured in 784 6-week-old children using cranial postnatal ultrasounds. Parents rated executive functioning at 4 years using the Behavior Rating Inventory of Executive Function-Preschool Version in five dimensions: inhibition, shifting, emotional control, working memory, and planning/organizing. Attention Deficit/Hyperactivity Problems were assessed at ages 3 and 5 years using the Child Behavior Checklist. Results: A smaller corpus callosum length during infancy was associated with greater deficits in executive functioning at 4 years. This was accounted for by higher problem scores on inhibition and emotional control. The corpus callosum length during infancy did not predict Attention Deficit/Hyperactivity Problem at 3 and 5 years, when controlling for the confounders. We did not find any relation between gangliothalamic ovoid diameter and executive function or Attention Deficit/Hyperactivity Problem. Conclusions: Variations in brain structures detectible in infants predicted subtle impairments in inhibition and emotional control. However, in this population-based study, we could not demonstrate that early structural brain variations precede symptoms of ADHD. (Contains 3 tables and 1 figure.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Descriptors:
Identification; Pregnancy; Adolescents; Brain Hemisphere Functions; Empathy; Females; Behavior Disorders; Correlation; Early Parenthood; Personality Problems; Antisocial Behavior; Diagnostic Tests; Neurology; Control Groups; Aggression; Emotional Response; Rewards; Cognitive Processes

Abstract:
Background: Conduct disorder (CD) in female adolescents is associated with a range of negative outcomes, including teenage pregnancy and antisocial personality disorder. Although recent studies have documented changes in brain structure and function in male adolescents with CD, there have been no neuroimaging studies of female adolescents with CD. Our primary objective was to investigate whether female adolescents with CD show changes in grey matter volume. Our secondary aim was to assess for sex differences in the relationship between CD and brain structure. Methods: Female adolescents with CD (n = 22) and healthy control participants matched in age, performance IQ and handedness (n = 20) underwent structural magnetic resonance imaging. Group comparisons of grey matter volume were performed using voxel-based morphometry. We also tested for sex differences using archive data obtained from male CD and control participants. Results: Female adolescents with CD showed reduced bilateral anterior insula and right striatal grey matter volumes compared with healthy controls. Aggressive CD symptoms were negatively correlated with right dorsolateral prefrontal cortex volume, whereas callous-unemotional traits were positively correlated with bilateral orbitofrontal cortex volume. The sex differences analyses revealed a main effect of diagnosis on right amygdala volume (reflecting reduced amygdala volume in the combined CD group relative to controls) and sex-by-diagnosis interactions in bilateral anterior insula. Conclusions: We observed structural abnormalities in brain regions involved in emotion processing, reward and empathy in female adolescents with CD, which broadly overlap with those reported in previous studies of CD in male adolescents. (Contains 2 tables and 3 figures.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Injuries; Specialists; Neurological Impairments; Brain; Neurology; Psychologists; Educational Psychology; Counselor Role; Interviews; Rehabilitation; Pediatrics; Hospitals; Educational Environment; Severity (of Disability); Foreign Countries

Abstract:
This study explores the process of reintegration into school for children with an acquired brain injury (ABI) and considers the role of the educational psychologist (EP) in supporting these children. Interviews were conducted with a range of professionals in two specialist settings: a specialist rehabilitation centre and a children's hospital with a specialism in paediatric neurology. The findings highlight a number of potential areas where EPs could contribute to the support of children with ABI including facilitating communication between professionals and providing training for school staff. The training implications for EPs are also considered. Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Child Abuse; Injuries; Posttraumatic Stress Disorder; Sexual Abuse; Self Destructive Behavior; Psychological Patterns; Neurology; Physiology; Correlation

Abstract:
Nonsuicidal self-injury (NSSI) is a significant problem in both clinical and nonclinical populations. Affect and state dysregulation are frequently observed in survivors of childhood sexual abuse and in those who engage in NSSI. Both have been found to predict NSSI, and affect regulation has also been modeled as a mediator of NSSI. This study extends present research by modeling both affect and state dysregulation as moderators of NSSI. The findings are discussed as an extension of the tension reduction theory and within a conceptualization of posttraumatic stress disorder (PTSD) as an asymmetry of the approach-avoidance neurophysiological system. (Contains 2 tables and 4 figures.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Evidence; Neurology; Reading Research; Mandarin Chinese; Alphabets; Second Language Learning; Native Language; English; Written Language; Orthographic Symbols; Phoneme Grapheme Correspondence; Brain Hemisphere Functions

Abstract:
In this paper, we argue that second language (L2) reading research, which has been informed by studies involving first language (L1) alphabetic English reading, may be less relevant to L2 readers with non-alphabetic reading backgrounds, such as Chinese readers with an L1 logographic (Chinese character) learning history. We provide both neuroanatomical and behavioural evidence from Chinese language reading studies to support our claims. The paper concludes with an argument outlining the need for a universal L2 reading model which can adequately account for readers with diverse L1 orthographic language learning histories. (Contains 1 figure and 2 notes.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Brain; Diagnostic Tests; Neurology; Metabolism; Human Body; Accuracy; Measurement

Abstract:
In functional magnetic resonance imaging (fMRI), the blood oxygenation level dependent (BOLD) signal is often interpreted as a measure of neural activity. However, because the BOLD signal reflects the complex interplay of neural, vascular, and metabolic processes, such an interpretation is not always valid. There is growing evidence that changes in the baseline neurovascular state can result in significant modulations of the BOLD signal that are independent of changes in neural activity. This paper introduces some of the normalization and calibration methods that have been proposed for making the BOLD signal a more accurate reflection of underlying brain activity for human fMRI studies. Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Cognitive Mapping; Inferences; Spatial Ability; Animals; Task Analysis; Rewards; Food; Training; Neurology; Learning Processes

Abstract:
Previous work has shown that children are able to make a spatial inference about adjacent locations that have only been experienced indirectly (Hazen, Lockman, & Pick, 1978). We sought to replicate this finding in rats, on a conceptually analogous task. In a first experiment, rats (n = 8) were given 110 training trials on a task in which they entered a series of four square environments via connecting alleyways. Following training, we conducted a probe session in which the original training route was blocked and three novel routes were introduced, one of which led directly to the food reward. Surprisingly, rats failed to choose this shortcut route over the alternative routes. In a second experiment, following additional training with a series of platforms that were visible from one another, rats again failed to take a shortcut when given the opportunity to do so. In a third experiment with naive rats (n = 11), a shortcut was chosen, but only by rats that were given unrewarded preexposure to the shortcut route. These tests suggest that, despite their dedicated neural representations of location and direction, rats lack the capacity for a novel spatial inference. For rats, the use of a shortcut requires learning. (Contains 8 figures.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Neurology; Brain; Aphasia; Music; History; Foreign Countries

Abstract:
Jean-Martin Charcot (1825-93) was a well-known French neurologist. Although he is widely recognized for his discovery of several neurological disorders and his research into aphasia, Charcot's ideas about how the brain processes music are less well known. Charcot discussed the music abilities of several patients in the context of his "Friday Lessons" on aphasia, which took place at the Salpetriere Hospital in Paris in 1883-84. In his most comprehensive discussion about music, Charcot described a professional trombone player who developed difficulty copying music notation and playing his instrument, thereby identifying a new isolated syndrome of music agraphia without aphasia. Because the description of this case was published only in Italian by one of his students, Domenico Miliotti, there has been considerable confusion and under-acknowledgement of Charcot's ideas about music and the brain. In this paper, we describe Charcot's ideas regarding music and place them within the historical context of the growing interest in the neurological underpinnings of music abilities that took place in the 1880s. Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Research; Neurological Organization; Cognitive Ability; Memory; Recognition (Achievement); Psychology; Patients; Awards; Biographies; Neurology; Brain; Diagnostic Tests

Abstract:
Presents Daniel L. Schacter as one of the winners of the American Psychological Association's Award for Distinguished Scientific Contributions (2012). Daniel L. Schacter's major theoretical and empirical contributions include groundbreaking research on the psychological and neural foundations of implicit and explicit memory, memory distortions and errors, and prospective episodic thought. He has propelled the field of cognitive neuroscience, first through studies of patients suffering anterograde amnesia and subsequently through functional brain imaging studies. A citation, biography, and selected bibliography are presented here. Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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Descriptors:
Structural Elements (Construction); Evidence; Neurology; Geometric Concepts; Cognitive Processes; Brain Hemisphere Functions; Diagnostic Tests; Responses; Task Analysis; Control Groups; Verbal Communication; Young Children

Abstract:
The geometry formed by the walls of a room is known to be a potent cue in reorientation, yet little is known about the use of geometric information gleaned from other contexts. We used functional magnetic resonance imaging to examine neural activity in adults while reorienting in 3 different environments: the typical rectangular walled room, a rectangular configuration of pillars in an open field, and a rectangular floor in an open field. Behavioral response patterns for the 3 environments were similar, but pairwise contrasts of brain activation revealed differences at the neural level. We observed greater medial temporal lobe (MTL) involvement when reorienting with the pillars versus the walls and floor. In addition, the walled room selectively engaged areas of posterior parahippocampal cortex corresponding to the parahippocampal place area, when compared with the floor. Finally, a conjunction analysis of the 3 geometry conditions, compared with a control task, revealed activation in the primary auditory cortex that was common to all geometry conditions. These findings add to growing evidence that adults use verbal processes to encode environment geometry and that the reorientation tasks that young children find difficult are particularly hippocampus-dependent. (Contains 3 tables and 5 figures.) Note:The following two links are not-applicable for text-based browsers or screen-reading software. Show Hide Full Abstract

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