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142. Perceived Controllability of an Emotional Event Impacts Emotion Regulation in Individuals at Clinical High-Risk for Psychosis
Perceived stress is linked to increased risk for developing psychosis. Research suggests that individuals at clinical high-risk for psychosis (CHR) demonstrate emotion regulation (ER) abnormalities that may impact their abilities to manage stress, elevating individual risk indices. Investigating factors underlying ER abnormalities may be critical for establishing treatment targets to improve adaptive stress management. This study uses ecological momentary assessment (EMA) to examine whether the perceived controllability of an emotional event, which is known to increase the stress response, contributes to ER abnormalities during everyday life in CHR. Participants, including CHR and healthy controls (CN), completed eight in-the-moment surveys over six days of EMA. Surveys assessed emotional experience, ER strategy use, and symptoms. Linear mixed modeling with an AR(1) covariance structure was employed to calculate whether perceived controllability of an emotional event impacts ER components in CHR compared to CN. Results indicate that CHR are less likely to initiate ER, report reduced ER effort, and select fewer ER strategies than CN when emotional events are perceived as uncontrollable. Overall, these data suggest that the perceived controllability of an event may influence multiple components of ER in CHR, potentially contributing to the maintenance of elevated perceived stress and related psychosis risk.