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Developmental Cognitive Neuroscience

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https://www.readbyqxmd.com/read/27919003/altered-patterns-of-directed-connectivity-within-the-reading-network-of-dyslexic-children-and-their-relation-to-reading-dysfluency
#1
Gojko Žarić, João M Correia, Gorka Fraga González, Jurgen Tijms, Maurtis W van der Molen, Leo Blomert, Milene Bonte
Reading is a complex cognitive skill subserved by a distributed network of visual and language-related regions. Disruptions of connectivity within this network have been associated with developmental dyslexia but their relation to individual differences in the severity of reading problems remains unclear. Here we investigate whether dysfunctional connectivity scales with the level of reading dysfluency by examining EEG recordings during visual word and false font processing in 9-year-old typically reading children (TR) and two groups of dyslexic children: severely dysfluent (SDD) and moderately dysfluent (MDD) dyslexics...
November 19, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27908562/ontogeny-of-sensorimotor-gating-and-short-term-memory-processing-throughout-the-adolescent-period-in-rats
#2
Anja A Goepfrich, Chris M Friemel, Sabina Pauen, Miriam Schneider
Adolescence and puberty are highly susceptible developmental periods during which the neuronal organization and maturation of the brain is completed. The endocannabinoid (eCB) system, which is well known to modulate cognitive processing, undergoes profound and transient developmental changes during adolescence. With the present study we were aiming to examine the ontogeny of cognitive skills throughout adolescence in male rats and clarify the potential modulatory role of CB1 receptor signalling. Cognitive skills were assessed repeatedly every 10th day in rats throughout adolescence...
November 19, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27908561/beyond-eye-gaze-what-else-can-eyetracking-reveal-about-cognition-and-cognitive-development
#3
REVIEW
Maria K Eckstein, Belén Guerra-Carrillo, Alison T Miller Singley, Silvia A Bunge
This review provides an introduction to two eyetracking measures that can be used to study cognitive development and plasticity: pupil dilation and spontaneous blink rate. We begin by outlining the rich history of gaze analysis, which can reveal the current focus of attention as well as cognitive strategies. We then turn to the two lesser-utilized ocular measures. Pupil dilation is modulated by the brain's locus coeruleus-norepinephrine system, which controls physiological arousal and attention, and has been used as a measure of subjective task difficulty, mental effort, and neural gain...
November 11, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27852514/adult-like-processing-of-time-compressed-speech-by-newborns-a-nirs-study
#4
Cécile Issard, Judit Gervain
Humans can adapt to a wide range of variations in the speech signal, maintaining an invariant representation of the linguistic information it contains. Among them, adaptation to rapid or time-compressed speech has been well studied in adults, but the developmental origin of this capacity remains unknown. Does this ability depend on experience with speech (if yes, as heard in utero or as heard postnatally), with sounds in general or is it experience-independent? Using near-infrared spectroscopy, we show that the newborn brain can discriminate between three different compression rates: normal, i...
October 29, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27840157/sensitive-periods-of-substance-abuse-early-risk-for-the-transition-to-dependence
#5
REVIEW
Chloe J Jordan, Susan L Andersen
Early adolescent substance use dramatically increases the risk of lifelong substance use disorder (SUD). An adolescent sensitive period evolved to allow the development of risk-taking traits that aid in survival; today these may manifest as a vulnerability to drugs of abuse. Early substance use interferes with ongoing neurodevelopment to induce neurobiological changes that further augment SUD risk. Although many individuals use drugs recreationally, only a small percentage transition to SUD. Current theories on the etiology of addiction can lend insights into the risk factors that increase vulnerability from early recreational use to addiction...
October 29, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27825732/cognitive-components-underpinning-the-development-of-model-based-learning
#6
Tracey C S Potter, Nessa V Bryce, Catherine A Hartley
Reinforcement learning theory distinguishes "model-free" learning, which fosters reflexive repetition of previously rewarded actions, from "model-based" learning, which recruits a mental model of the environment to flexibly select goal-directed actions. Whereas model-free learning is evident across development, recruitment of model-based learning appears to increase with age. However, the cognitive processes underlying the development of model-based learning remain poorly characterized. Here, we examined whether age-related differences in cognitive processes underlying the construction and flexible recruitment of mental models predict developmental increases in model-based choice...
October 29, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27769716/visual-search-performance-in-infants-associates-with-later-asd-diagnosis
#7
C H M Cheung, R Bedford, M H Johnson, T Charman, T Gliga
An enhanced ability to detect visual targets amongst distractors, known as visual search (VS), has often been documented in Autism Spectrum Disorders (ASD). Yet, it is unclear when this behaviour emerges in development and if it is specific to ASD. We followed up infants at high and low familial risk for ASD to investigate how early VS abilities links to later ASD diagnosis, the potential underlying mechanisms of this association and the specificity of superior VS to ASD. Clinical diagnosis of ASD as well as dimensional measures of ASD, attention-deficit/hyperactivity disorder (ADHD) and anxiety symptoms were ascertained at 3 years...
September 30, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27720399/becoming-a-sexual-being-the-elephant-in-the-room-of-adolescent-brain-development
#8
Ahna Ballonoff Suleiman, Adriana Galván, K Paige Harden, Ronald E Dahl
The onset of adolescence is a time of profound changes in motivation, cognition, behavior, and social relationships. Existing neurodevelopmental models have integrated our current understanding of adolescent brain development; however, there has been surprisingly little focus on the importance of adolescence as a sensitive period for romantic and sexual development. As young people enter adolescence, one of their primary tasks is to gain knowledge and experience that will allow them to take on the social roles of adults, including engaging in romantic and sexual relationships...
September 29, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27692617/impact-of-associative-word-learning-on-phonotactic-processing-in-6-month-old-infants-a-combined-eeg-and-fnirs-study
#9
Hellmuth Obrig, Julia Mock, Franziska Stephan, Maria Richter, Micol Vignotto, Sonja Rossi
During early language development native phonotactics are acquired in a 'bottom-up' fashion, relying on exquisite auditory differentiation skills operational from birth. Since basic lexico-semantic abilities have been demonstrated from 6 months onwards, 'top-down' influences on phonotactic learning may complement the extraction of transitional probabilities in phonotactic learning. Such a bidirectional acquisition strategy predicts, that familiarization with (proto)words should affect processing of untrained word-forms of similar phonological structure...
September 20, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27838595/lower-neighborhood-quality-in-adolescence-predicts-higher-mesolimbic-sensitivity-to-reward-anticipation-in-adulthood
#10
Marlen Z Gonzalez, Joseph P Allen, James A Coan
Life history theory suggests that adult reward sensitivity should be best explained by childhood, but not current, socioeconomic conditions. In this functional magnetic resonance imaging (fMRI) study, 83 participants from a larger longitudinal sample completed the monetary incentive delay (MID) task in adulthood (∼25 years old). Parent-reports of neighborhood quality and parental SES were collected when participants were 13 years of age. Current income level was collected concurrently with scanning. Lower adolescent neighborhood quality, but neither lower current income nor parental SES, was associated with heightened sensitivity to the anticipation of monetary gain in putative mesolimbic reward areas...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27837677/5-httlpr-polymorphism-is-linked-to-neural-mechanisms-of-selective-attention-in-preschoolers-from-lower-socioeconomic-status-backgrounds
#11
Elif Isbell, Courtney Stevens, Amanda Hampton Wray, Theodore Bell, Helen J Neville
While a growing body of research has identified experiential factors associated with differences in selective attention, relatively little is known about the contribution of genetic factors to the skill of sustained selective attention, especially in early childhood. Here, we assessed the association between the serotonin transporter linked polymorphic region (5-HTTLPR) genotypes and the neural mechanisms of selective attention in young children from lower socioeconomic status (SES) backgrounds. Event-related potentials (ERPs) were recorded during a dichotic listening task from 121 children (76 females, aged 40-67 months), who were also genotyped for the short and long allele of 5-HTTLPR...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27833046/development-of-relational-memory-processes-in-monkeys
#12
Maria C Alvarado, Ludise Malkova, Jocelyne Bachevalier
The present study tested whether relational memory processes, as measured by the transverse patterning problem, are late-developing in nonhuman primates as they are in humans. Eighteen macaques ranging from 3 to 36 months of age, were trained to solve a set of visual discriminations that formed the transverse patterning problem. Subjects were trained at 3, 4-6, 12, 15-24 or 36 months of age to solve three discriminations as follows: 1) A+ vs. B-; 2) B+ vs. C-; 3) C+ vs. A. When trained concurrently, subjects must adopt a relational strategy to perform accurately on all three problems...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27744099/hemispheric-speech-lateralisation-in-the-developing-brain-is-related-to-motor-praxis-ability
#13
Jessica C Hodgson, Rebecca J Hirst, John M Hudson
Commonly displayed functional asymmetries such as hand dominance and hemispheric speech lateralisation are well researched in adults. However there is debate about when such functions become lateralised in the typically developing brain. This study examined whether patterns of speech laterality and hand dominance were related and whether they varied with age in typically developing children. 148 children aged 3-10 years performed an electronic pegboard task to determine hand dominance; a subset of 38 of these children also underwent functional Transcranial Doppler (fTCD) imaging to derive a lateralisation index (LI) for hemispheric activation during speech production using an animation description paradigm...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27744098/early-math-and-reading-achievement-are-associated-with-the-error-positivity
#14
Matthew H Kim, Jennie K Grammer, Loren M Marulis, Melisa Carrasco, Frederick J Morrison, William J Gehring
Executive functioning (EF) and motivation are associated with academic achievement and error-related ERPs. The present study explores whether early academic skills predict variability in the error-related negativity (ERN) and error positivity (Pe). Data from 113 three- to seven-year-old children in a Go/No-Go task revealed that stronger early reading and math skills predicted a larger Pe. Closer examination revealed that this relation was quadratic and significant for children performing at or near grade level, but not significant for above-average achievers...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27744097/the-application-of-neuroimaging-to-social-inequity-and-language-disparity-a-cautionary-examination
#15
REVIEW
Monica E Ellwood-Lowe, Matthew D Sacchet, Ian H Gotlib
In the nascent field of the cognitive neuroscience of socioeconomic status (SES), researchers are using neuroimaging to examine how growing up in poverty affects children's neurocognitive development, particularly their language abilities. In this review we highlight difficulties inherent in the frequent use of reverse inference to interpret SES-related abnormalities in brain regions that support language. While there is growing evidence suggesting that SES moderates children's developing brain structure and function, no studies to date have elucidated explicitly how these neural findings are related to variations in children's language abilities, or precisely what it is about SES that underlies or contributes to these differences...
December 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27606972/a-developmental-neuroscience-perspective-on-affect-biased-attention
#16
REVIEW
Santiago Morales, Xiaoxue Fu, Koraly E Pérez-Edgar
There is growing interest regarding the impact of affect-biased attention on psychopathology. However, most of the research to date lacks a developmental approach. In the present review, we examine the role affect-biased attention plays in shaping socioemotional trajectories within a developmental neuroscience framework. We propose that affect-biased attention, particularly if stable and entrenched, acts as a developmental tether that helps sustain early socioemotional and behavioral profiles over time, placing some individuals on maladaptive developmental trajectories...
October 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27591712/amygdala-habituation-to-emotional-faces-in-adolescents-with-internalizing-disorders-adolescents-with-childhood-sexual-abuse-related-ptsd-and-healthy-adolescents
#17
Bianca G van den Bulk, Leah H Somerville, Marie-José van Hoof, Natasja D J van Lang, Nic J A van der Wee, Eveline A Crone, Robert R J M Vermeiren
Adolescents with internalizing disorders and adolescents with childhood sexual abuse related post-traumatic stress disorder (CSA-related PTSD) show a large overlap in symptomatology. In addition, brain research indicated hyper-responsiveness and sustained activation instead of habituation of amygdala activation to emotional faces in both groups. Little is known, however, about whether the same patterns of amygdala habituation are present in these two groups. The current study examined habituation patterns of amygdala activity to emotional faces (fearful, happy and neutral) in adolescents with a DSM-IV depressive and/or anxiety disorder (N=25), adolescents with CSA-related PTSD (N=19) and healthy controls (N=26)...
October 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27490304/neural-correlates-of-accelerated-auditory-processing-in-children-engaged-in-music-training
#18
Assal Habibi, B Rael Cahn, Antonio Damasio, Hanna Damasio
Several studies comparing adult musicians and non-musicians have shown that music training is associated with brain differences. It is unknown, however, whether these differences result from lengthy musical training, from pre-existing biological traits, or from social factors favoring musicality. As part of an ongoing 5-year longitudinal study, we investigated the effects of a music training program on the auditory development of children, over the course of two years, beginning at age 6-7. The training was group-based and inspired by El-Sistema...
October 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27527736/the-neural-substrates-of-cognitive-flexibility-are-related-to-individual-differences-in-preschool-irritability-a-fnirs-investigation
#19
Yanwei Li, Adam S Grabell, Lauren S Wakschlag, Theodore J Huppert, Susan B Perlman
Preschool (age 3-5) is a phase of rapid development in both cognition and emotion, making this a period in which the neurodevelopment of each domain is particularly sensitive to that of the other. During this period, children rapidly learn how to flexibly shift their attention between competing demands and, at the same time, acquire critical emotion regulation skills to respond to negative affective challenges. The integration of cognitive flexibility and individual differences in irritability may be an important developmental process of early childhood maturation...
August 4, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/27495364/corrigendum-to-multiple-forms-of-metaplasticity-at-a-single-hippocampal-synapse-during-late-postnatal-development-dev-cogn-sci-12c-2015-145-154
#20
Daniel G McHail, Theodore C Dumas
No abstract text is available yet for this article.
August 2016: Developmental Cognitive Neuroscience
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