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adolescent brain development

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5 papers 100 to 500 followers
By Grant D. Nelson, PhD Professor & Clinician of Health Psychology & Behavioral Medicine
https://www.readbyqxmd.com/read/24468408/functional-differences-in-emotion-processing-during-adolescence-and-early-adulthood
#1
Matthijs Vink, Jolanda M Derks, Janna Marie Hoogendam, Manon Hillegers, René S Kahn
Adolescence is a transitional period between childhood and adulthood and is characterized by emotional instability. Underlying this behavior may be an imbalance between the limbic subcortical areas and the prefrontal cortex. Here, we investigated differences in these regions during adolescence and young adulthood. Fifty subjects aged 10 to 24 viewed and rated neutral, negative, and positive pictures (IAPS: International Affective Picture System), while being scanned with functional MRI. Only those trials in which there was a match between the subject's response and the IAPS rating were included in the analyses...
May 1, 2014: NeuroImage
https://www.readbyqxmd.com/read/24342843/adolescent-brain-development-in-normality-and-psychopathology
#2
REVIEW
Monica Luciana
Since this journal's inception, the field of adolescent brain development has flourished, as researchers have investigated the underpinnings of adolescent risk-taking behaviors. Explanations based on translational models initially attributed such behaviors to executive control deficiencies and poor frontal lobe function. This conclusion was bolstered by evidence that the prefrontal cortex and its interconnections are among the last brain regions to structurally and functionally mature. As substantial heterogeneity of prefrontal function was revealed, applications of neuroeconomic theory to adolescent development led to dual systems models of behavior...
November 2013: Development and Psychopathology
https://www.readbyqxmd.com/read/24289263/brain-white-matter-microstructure-alterations-in-adolescent-rhesus-monkeys-exposed-to-early-life-stress-associations-with-high-cortisol-during-infancy
#3
Brittany R Howell, Kai M McCormack, Alison P Grand, Nikki T Sawyer, Xiaodong Zhang, Dario Maestripieri, Xiaoping Hu, Mar M Sanchez
BACKGROUND: Early adverse experiences, especially those involving disruption of the mother-infant relationship, are detrimental for proper socioemotional development in primates. Humans with histories of childhood maltreatment are at high risk for developing psychopathologies including depression, anxiety, substance abuse, and behavioral disorders. However, the underlying neurodevelopmental alterations are not well understood. Here we used a nonhuman primate animal model of infant maltreatment to study the long-term effects of this early life stress on brain white matter integrity during adolescence, its behavioral correlates, and the relationship with early levels of stress hormones...
December 2, 2013: Biology of Mood & Anxiety Disorders
https://www.readbyqxmd.com/read/24286520/annual-research-review-the-neurobehavioral-development-of-multiple-memory-systems-implications-for-childhood-and-adolescent-psychiatric-disorders
#4
REVIEW
Jarid Goodman, Rachel Marsh, Bradley S Peterson, Mark G Packard
Extensive evidence indicates that mammalian memory is organized into multiple brains systems, including a 'cognitive' memory system that depends on the hippocampus and a stimulus-response 'habit' memory system that depends on the dorsolateral striatum. Dorsal striatal-dependent habit memory may in part influence the development and expression of some human psychopathologies, particularly those characterized by strong habit-like behavioral features. The present review considers this hypothesis as it pertains to psychopathologies that typically emerge during childhood and adolescence...
June 2014: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/24128659/examining-the-link-between-adolescent-brain-development-and-risk-taking-from-a-social-developmental-perspective
#5
REVIEW
Teena Willoughby, Marie Good, Paul J C Adachi, Chloe Hamza, Royette Tavernier
The adolescent age period is often characterized as a health paradox because it is a time of extensive increases in physical and mental capabilities, yet overall mortality/morbidity rates increase significantly from childhood to adolescence, often due to preventable causes such as risk taking. Asynchrony in developmental time courses between the affective/approach and cognitive control brain systems, as well as the ongoing maturation of neural connectivity are thought to lead to increased vulnerability for risk taking in adolescence...
December 2013: Brain and Cognition
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