Emotion regulation flexibility: EEG/EMG predictors and consequences of switching between reappraisal and distraction strategies.

Flexible use of emotion regulation (ER) strategies is central to mental health. To advance our understanding of what drives adaptive strategy-switching decisions, in this preregistered study, we used event-related potentials (late positive potential, LPP and stimulus preceding negativity, SPN) and facial electromyography (EMG corrugator activity) to test the antecedents and consequences of switching to an alternative ER strategy. Participants (N = 63, Mage = 24.8 years, all female) passively watched and then implemented an instructed ER strategy (reappraisal or distraction) in response to high-intensity negative pictures that were either easy or difficult to reinterpret (high or low reappraisal affordance, respectively). Next, they decided to "switch from" or "maintain" the instructed strategy and subsequently implemented the chosen strategy. Reappraisal affordance manipulations successfully induced switching. Regarding antecedents, switching was predicted by the reduced ER efficacy of the current strategy (corrugator, but not LPP). Switching to distraction was additionally predicted by increased responses to the stimulus during passive viewing (corrugator and LPP) and increased anticipatory effort in implementing reappraisal (SPN). Concerning consequences, switching to distraction improved, whereas switching to reappraisal impaired post-choice ER effects (LPP). However, starting with reappraisal was overall more effective than starting with distraction, irrespective of the subsequent decision (corrugator). Our results suggest that switching between ER strategies occurs in accordance with situational demands (stimulus affordances) and is predicted by reduced peripheral physiological ER efficacy. However, only switching to distraction leads to improved regulatory effects. These insights provide neurocognitively grounded starting points for developing interventions targeting ER flexibility.

Successful implementation of cognitive reappraisal: effects of habit and situational factors.

Reappraisal is an adaptive emotion regulation strategy associated with favourable mental health outcomes. It is unclear whether the adaptive outcomes of habitual reappraisal are associated with better implementation of reappraisal when faced with negative affective situations. The current study aimed to examine whether habitual reappraisal predicts the implementation of instructed reappraisal and to evaluate the potential moderating effects of situational factors, namely - emotional intensity and reappraisal affordance. To address this question, 100 participants reported their habitual reappraisal tendency and were asked to imagine themselves in different hypothetical interpersonal situations. Participants rated emotional intensity levels and reappraisal affordance for each situation, followed by instructions to implement reappraisal. Implementation success was measured by self-reported affect pre-and-post-implementation. Results indicated that habitual reappraisal was associated with greater reappraisal implementation success. While higher intensity scores predicted greater reappraisal implementation success, intensity did not moderate the association between habitual reappraisal and reappraisal implementation success. Reappraisal affordance did not predict reappraisal implementation success, nor did it moderate the association between habitual reappraisal and reappraisal implementation success. Our findings suggest that individual-centred factors play a significant role in reappraisal implementation success, while the effects of situation-centred factors demand further investigation.