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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/225676
Electrodermal activity in bipolar disorder: Differences between mood episodes and clinical remission using a wearable device in a real-world clinical setting
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Background: Bipolar disorder (BD) lacks objective measures for illness activity and treatment response. Electrodermal activity (EDA) is a quantitative measure of autonomic function, which is altered in manic and depressive episodes. We aimed to explore differences in EDA (1) inter-individually: between patients with BD on acute mood episodes, euthymic states and healthy controls (HC), and (2) intra-individually: longitudinally within patients during acute mood episodes of BD and after clinical remission.
Methods: A longitudinal observational study. EDA was recorded using a research-grade wearable in patients with BD during acute manic and depressive episodes and at clinical remission. Euthymic BD patients and HC were recorded during a single session. We compared EDA parameters derived from the tonic (mean EDA, mEDA) and phasic components (EDA peaks per minute, pmEDA, and EDA peaks mean amplitude, pmaEDA). Inter- and intra-individual comparisons were computed respectively with ANOVA and paired t-tests.
Results: 49 patients with BD (15 manic, 9 depressed, and 25 euthymic), and 19 HC were included. Patients with bipolar depression showed significantly reduced mEDA (p = 0.003) and pmEDA (p = 0.001), which increased to levels similar to euthymia or HC after clinical remission (mEDA, p = 0.011; pmEDA, p < 0.001; pmaEDA, p < 0.001). Manic patients showed no differences compared to euthymic patients and HCs, but a significant reduction of tonic and phasic EDA parameters after clinical remission (mEDA, p = 0.035; pmEDA, p = 0.004).
Limitations: Limited sample size, high inter-individual variability of EDA parameters, limited comparability to previous studies and non-adjustment for medication.
Conclusion: EDA ecological monitoring might provide several opportunities for early detection of depressive symptoms, and might aid at assessing early response to treatments in mania and bipolar depression.
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ANMELLA, Gerard, MAS, Ariadna, SANABRA GONZÁLEZ, Miriam, VALENZUELA-PASCUAL, Clàudia, VALENTÍ RIBAS, Marc, PACCHIAROTTI, Isabella, BENABARRE, Antonio, GRANDE I FULLANA, Iria, DE PRISCO, Michele, OLIVA, Vincenzo, FICO, Giovanna, GIMÉNEZ PALOMO, Anna, BASTIDAS, Anna, AGASI, Isabel, YOUNG, Allan h., GARRIGA, Marina, CORPONI, Filippo, LI, Bryan m., DE LOOFF, Peter, VIETA I PASCUAL, Eduard, HIDALGO MAZZEI, Diego. Electrodermal activity in bipolar disorder: Differences between mood episodes and clinical remission using a wearable device in a real-world clinical setting. _Journal of Affective Disorders_. 2023. Vol. 345, núm. 43-50. [consulta: 24 de gener de 2026]. ISSN: 0165-0327. [Disponible a: https://hdl.handle.net/2445/225676]