[명상과학연구소](2024)Protocol for a Pilot Study on the Neurocardiac Mechanism of an Interoceptive Compassion-Based Heart-Smile Training for Depression

2025-02-24

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*연구과제명: Protocol for a Pilot Study on the Neurocardiac Mechanism of an Interoceptive Compassion-Based Heart-Smile Training for Depression

-연구 기관: 한국과학기술원(KAIST) 명상과학연구소, 하버드 의대 캠브리지 건강 연합 정신과, 하버드 의대 스폴딩 재활 병원, 남캘리포니아대학교 정신과 및 행동과학과 (연구팀)
-저자: Eunmi Kim, PhD, Diane Joss, PhD, Frannie Marin, BS, Alessandra Anzolin, PhD, Richa Gawande, PhD, Alexandra Comeau, MA, Seneca Ellis, BA, Clare Bumpus, BA, B. Rael Cahn, MD, PhD, Misan W. D. Kim, PhD, Vitaly Napadow, PhD, Zev Schuman-Olivier, MD 


Abstract

Background: Heart-Smile Training (HST) is an interoceptive compassion-based behavioral intervention that in case reports has been beneficial for depression. Interoception refers to the awareness and regulation of physiological signals from inside the body. Depressed patients often have diminished interoceptive awareness and often experience disconnection from bodily needs and sensations. In addition to interoceptive dysfunction, depression often involves negative self-evaluation and self-critical rumination. HST is a compassion-based meditation training program that explicitly cultivates interoceptive awareness of the heart area. This study aims to investigate the possible neurocardiac mechanisms engaged through HST for depression patients. Methods: We plan to enroll 50 subjects to be randomized into a 4-week HST intervention group and a waitlist group. A battery of psychological questionnaires will be administered at baseline and post-intervention timepoints, and electroencephalography (EEG) will be collected during compassion meditation guided by pre-recorded audio. The primary clinical outcome measures are on thefeasibilityofthe intervention and research procedures, the primary mechanistic outcome measure is the post-intervention change in Heartbeat Evoked Potential (HEP) amplitude. Secondary outcome measures include changes in depression severity and EEG gamma spectral activity. Exploratory outcome measures include effects of HST on skin conductance response, heart rate variability, EEG spectral properties in other frequency bands, as well as a list of psychological questionnaires that measure depression and anxiety symptoms, emotion regulation, mindfulness, interoceptive awareness, self-compassion, gratitude, sleep quality, quality of life and social connectedness.

Results: Results not yet available.

Conclusion: This is the first study on the feasibility and interoceptive neurocardiac mechanism of HST. Our findings will provide frontier knowledge on the physiological working mechanism of behavioral interventions with an interoception-based meditative approach. https://clinicaltrials.gov/study/NCT05564533.

Keywords

interoception, compassion, depression, loving-kindness, neural, heart smile training