The Role of Cognitive Flexibility in Mindfulness Intervention: a Functional Near-infrared Spectroscopy Study

The MIED program integrates the rationales and practices from the Unified Protocol for Treatment of Emotional Disorders (UP) and Mindfulness based Interventions. Formal mindfulness exercises (e.g., body scan, mindful breathing, and mindful stretching) and informal mindfulness practices (e.g., mindful tooth brushing) were adapted from Mindfulness based intervention (MBIs). The offline received the 8-week (2.5-h per week) sessions.The online MIED program was delivered by a Chat Mini Program and lasted for 49 days. Each day, participants received different materials including (a) an audio recording of mindfulness meditation guidance; (b) learning materials in text or audio; and (c) assignments (for example, informal mindfulness practice, emotion journal, and challenging tasks). In total, it took about 30 min per day to finish all the tasks.