Facing Change: Using Automated Facial Expression Analysis to Examine Emotional Flexibility in the Treatment of Depression.

OBJECTIVE: Depression involves deficits in emotional flexibility. To date, the varied and dynamic nature of emotional processes during therapy has mostly been measured at discrete time intervals using clients' subjective reports. Because emotions tend to fluctuate and change from moment to moment, the understanding of emotional processes in the treatment of depression depends to a great extent on the existence of sensitive, continuous, and objectively codified measures of emotional expression. In this observational study, we used computerized measures to analyze high-resolution time-series facial expression data as well as self-reports to examine the association between emotional flexibility and depressive symptoms at the client as well as at the session levels. METHOD: Video recordings from 283 therapy sessions of 58 clients who underwent 16 sessions of manualized psychodynamic psychotherapy for depression were analyzed. Data was collected as part of routine practice in a university clinic that provides treatments to the community. Emotional flexibility was measured in each session using an automated facial expression emotion recognition system. The clients' depression level was assessed at the beginning of each session using the Beck Depression Inventory-II (Beck et al., 1996). RESULTS: Higher emotional flexibility was associated with lower depressive symptoms at the treatment as well as at the session levels. CONCLUSION: These findings highlight the centrality of emotional flexibility both as a trait-like as well as a state-like characteristic of depression. The results also demonstrate the usefulness of computerized measures to capture key emotional processes in the treatment of depression at a high scale and specificity.

Clients' emotional experience as a dynamic context for client-therapist physiological synchrony.

OBJECTIVE: Client-therapist physiological synchrony has recently attracted significant empirical attention. Recent theoretical accounts propose that physiological linkages should not be considered a stable dyadic virtue but rather a dynamic process that depends on the situational context in which they transpire. The present study adopted a "momentary" (vs. "global") approach that focuses on therapist-client physiological synchrony over relatively short periods of time. These temporal data served to examine the interplay between patterns of synchrony (in-phase vs. antiphase) and clients' momentary emotional experiences (inhibited/unproductive, productive, and positive). Synchrony was assessed by measuring respiratory sinus arrhythmia (RSA), an autonomic index that is known to be associated with interpersonal emotion regulation. METHOD: Data were drawn from 28 clients undergoing a 16-session supportive-expressive dynamic therapy for depression. Clients' and therapists' electrocardiography were recorded in five sessions; clients' emotional experiences were coded at the speech-turn level. After each session, the clients also completed the session evaluation scale. RESULTS: Client-therapist dyads had greater momentary RSA synchrony than would be predicted by chance. Compared to moments of unproductive emotional experience, greater antiphase synchrony was observed during moments of productive emotional experiences. In addition, compared to moments of unproductive emotional experience, greater in-phase and antiphase synchrony were observed during moments of positive emotional experiences. These patterns of synchrony were associated with clients' favorable evaluations of the session. CONCLUSION: By considering the dynamic nature of synchrony, these findings provide a fine-grained picture of physiological synchrony and its potential effects on therapy. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Oxytocin reactivity to the therapeutic encounter as a biomarker of change in the treatment of depression.

Depression affects millions worldwide, thus underscoring the urgent need to optimize health care practices. To better understand the processes involved in psychotherapy gains, studies have emphasized the need to complement subjective reports with objective measures, in particular biological markers. Oxytocin (OT) has been proposed as a potential biomarker in the treatment of depression given its involvement in depression-related psychological and physiological functions and the formation of close relationships. Here, we assessed whether OT reactivity to therapeutic encounters (absolute and/or directional reactivity) is linked to improvements in depressive symptoms from session to session during psychotherapy. A total of 284 saliva samples were collected from 30 adult clients who underwent 16 sessions of manualized psychodynamic psychotherapy for depression in a university setting. Salivary OT was measured before and after five preselected sessions distributed evenly throughout the therapy. The Beck Depression Inventory-II (BDI-II) was administered at the beginning of each session. Multilevel growth models indicated that clients exhibiting greater absolute OT reactivity showed greater improvement in depressive symptoms throughout treatment. Directional reactivity was not associated with depressive symptom change. In addition, clients with higher baseline OT levels displayed less change in depressive symptoms. These findings highlight reactivity of the OT system, in either direction, as an important feature of the treatment response. Consistent with recent models of the neurobiology of resilience, OT reactivity appears to serve as an important biomarker of psychotherapy gain in the treatment of depression. (PsycInfo Database Record (c) 2022 APA, all rights reserved).