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2017 ; 27
(ä): 1-9
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gab.com Text
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English Wikipedia
Heightened activity in social reward networks is associated with adolescents
risky sexual behaviors
#MMPMID28755632
Eckstrand KL
; Choukas-Bradley S
; Mohanty A
; Cross M
; Allen NB
; Silk JS
; Jones NP
; Forbes EE
Dev Cogn Neurosci
2017[Oct]; 27
(ä): 1-9
PMID28755632
show ga
Adolescent sexual risk behavior can lead to serious health consequences, yet few
investigations have addressed its neurodevelopmental mechanisms. Social
neurocircuitry is postulated to underlie the development of risky sexual
behavior, and response to social reward may be especially relevant. Typically
developing adolescents (N=47; 18M, 29F; 16.3±1.4years; 42.5% sexual intercourse
experience) completed a social reward fMRI task and reported their sexual risk
behaviors (e.g., lifetime sexual partners) on the Youth Risk Behavior Survey
(YRBS). Neural response and functional connectivity to social reward were
compared for adolescents with higher- and lower-risk sexual behavior. Adolescents
with higher-risk sexual behaviors demonstrated increased activation in the right
precuneus and the right temporoparietal junction during receipt of social reward.
Adolescents with higher-risk sexual behaviors also demonstrated greater
functional connectivity between the precuneus and the temporoparietal junction
bilaterally, dorsal medial prefrontal cortex, and left anterior
insula/ventrolateral prefrontal cortex. The greater activation and functional
connectivity in self-referential, social reward, and affective processing regions
among higher sexual risk adolescents underscores the importance of social
influence underlying sexual risk behaviors. Furthermore, results suggest an
orientation towards and sensitivity to social rewards among youth engaging in
higher-risk sexual behavior, perhaps as a consequence of or vulnerability to such
behavior.