What question did this study set out to answer?

To investigate the neural mechanisms that govern subjective valuation of rewards and punishments in combat veterans with varying degrees of posttraumatic stress disorder symptoms.

March 28, 2023Translational PsychiatryOpen Access

Neural valuation of rewards and punishments in posttraumatic stress disorder: a computational approach

View Full Paper

Ask AI

Bookmark

Authors

RJRuonan JiaYale University LRLital RudermanYale University RPRobert H. PietrzakUniversity of North Carolina at Chapel Hill

Discussion

Member takes

Implication

Functional MRI study reveals altered reward and punishment valuation in combat veterans, suggesting a core valuation system impairment in posttraumatic stress disorder.

Key Points

To investigate the neural mechanisms that govern subjective valuation of rewards and punishments in combat veterans with varying degrees of posttraumatic stress disorder symptoms.
Evaluated 48 male combat veterans with a range of posttrauma symptom severities using the Clinician Administered PTSD Scale (CAPS-IV).
Acquired functional MRI data while participants performed a decision-making task involving choices between certain and uncertain monetary gains and losses.
Applied computational modeling to choice behavior to estimate option-specific subjective values and examine their neural encoding.
Activity in the ventromedial prefrontal cortex (vmPFC) during valuation of uncertain options was significantly linked to PTSD symptom severity across both gains and losses, an effect driven primarily by emotional numbing symptoms.
Computational analysis demonstrated that veterans with PTSD exhibited enhanced neural representations of the saliency of gains and losses, especially within the ventral striatum.

Cite This Study

Jia et al. (2023) studied this question.

synapsesocial.com/papers/6a11c8b4ed9c06332dfd3549 https://doi.org/10.1038/s41398-023-02388-4

View Full Paper

Ask AI

Bookmark

Implication

Functional MRI study reveals altered reward and punishment valuation in combat veterans, suggesting a core valuation system impairment in posttraumatic stress disorder.

Neural valuation of rewards and punishments in posttraumatic stress disorder: a computational approach

Discussion

Member takes

Implication

Key Points

Cite This Study

Neural valuation of rewards and punishments in posttraumatic stress disorder: a computational approach

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider