Developmental trajectories to reduced activation of positive valence systems: A review of biological and environmental contributions.

ABSTRACT: Reduced activation of positive valence systems (PVS), including blunted neural and physiological responses to pleasant stimuli and rewards, has been shown to prospectively predict the development of psychopathology. Yet, little is known about how reduced PVS activation emerges across development or what implications it has for prevention. We review genetic, temperament, parenting, and naturalistic and laboratory stress research on neural measures of PVS and outline developmentally-informed models of trajectories of PVS activation. PVS function is partly heritable and appears to reflect individual differences in early-emerging temperament traits. Although lab-induced stressors blunt PVS activation, effects of parenting and naturalistic stress on PVS are mixed and depend on the type of stres

SUBMITTER: Kujawa A 

PROVIDER: S-EPMC7225621 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature