childhood adversity
what specific biological changes did each cause in children that increased the odds of specific adult behaviors?
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Basically, childhood adversity increases the odds of an adult having (a) Depression, anxiety, and/ or substance abuse; (b) impaired cognitive capabilities, particularly related to frontocortical function; (c) impaired impulse control and emotion regulation; (d) antisocial behavior, including violence; and (e) relationships that replicate the adversities of childhood
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abused children who develop PTSD have decreased volume of the Hippocampus in adulthood.
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As a likely cause, Glucocorticoids decrease hippocampal production of the growth factor BDNF (brain-derived neurotrophic factor).
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childhood adversity impairs learning and memory. Crucially, it also impairs maturation and function of the Frontal Cortex; again, glucocorticoids, via inhibiting BDNF, are likely culprits.
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achieve equivalent frontal regulation, lower-SES socioeconomic status kids must activate more frontal cortex than do higher-SES kids. ^ses-frontal-more
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Heritability und der Einfluss des SES auf den IQ von Kindern
Childhood adversity accelerates amygdaloid maturation in a particular way.
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Childhood adversity also damages the Dopamine system (with its role in Reward, anticipation, and goal-directed behavior) in two ways.
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Exposing children to a violent TV or film clip increases their odds of Aggression soon after.
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in one study, watching violent music videos increased adolescent girls’ acceptance of dating violence.
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⇒ Partnerwahl
The link between exposure to childhood media violence and increased adult aggression is stronger than the link between lead exposure and IQ, calcium intake and bone mass, or asbestos and laryngeal cancer.
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see also
Tags: neuroscience science
Superlink: 050 🧠Neuroscience
Quellen
Chapter 7 Back to the Crib Back to the Womb
Erstellt: 15-05-22 17:09