Tailored Ecological Momentary Music Intervention to Reduce Stress in the Daily Life of Turkish Immigrant Women

Ethnic discrimination (ED) represents a complex stressor that triggers psychobiological stress reactions (Pascoe & Smart Richman, 2009). Experienced chronically, ED can adversely affect mental and physical health (e.g., Lewis et al., 2015; Schmitt et al., 2014), most likely due to dysregulations of psychobiological stress systems (Chrousos, 2009; Schlotz, 2019). In this regard, women may be particularly affected as they face discrimination based on both ethnicity and gender more often compared to men (e.g., Harnois, 2014; Seaton & Tyson, 2019). Considering the resulting health impairments, it is of great importance to investigate strategies that can mitigate the occurring stress reactions and thereby contribute to health promotion. Therefore, we conducted a pilot study to test the feasibility of an ecological momentary music intervention aiming to reduce stress levels of affected individuals (clinicaltrials.gov identifier: NCT04957966). Based on the findings of the pilot study and power calculations, we will now conduct a larger main study. The primary aim of our study is to examine the effectiveness of an ecological momentary music intervention to reduce psychological and biological (cortisol, alpha-amylase) stress levels after stressful and/or discriminatory events in the daily life of chronically discriminated Turkish immigrant women.

We hypothesize that listening to self-selected, relaxing music after an event of acute stress and/or ethnic discrimination in daily life will result in stronger decreases of psychological (perceived stress, perceived ethnic discrimination) and biological (cortisol, alpha-amylase) stress levels compared to no music listening (immediate effect). Further, we expect a decrease in diurnal psychological and biological stress levels throughout the study period (intermediate effect).

The study consists of three phases: Baseline phase (week 1), intervention phase (week 2 to 4), post intervention phase (week 5).

During the baseline and post intervention phase, we will assess participants' psychological and biological stress fluctuations and perceived ethnic discrimination in daily life. Therefore, participants will be prompted three times a day (11:00 am, 3:00 pm, 7:00 pm) through a study app to answer questions on their momentary levels of stress, perceived discrimination, positive and negative affect, and their music-listening activities (time-contingent data entries). Additionally, whenever a stressful and/or discriminatory event occurs, participants will be instructed to initiate a data entry by themselves in order to report their momentary levels of stress, perceived discrimination, positive and negative affect, and to answer questions on the current situation. To investigate activities after such self-initiated, event-contingent data entries, the app will prompt the participants 20 minutes later for an additional data entry (post). As part of every time-contingent and event-contingent report, participants will provide a saliva sample for the analysis of biological stress markers: salivary cortisol levels as index of hypothalamic-pituitary-adrenal axis (HPA axis) activity, salivary alpha-amylase as index of autonomic nervous system (ANS) activity.

Every evening before going to bed, participants will complete a daily diary assessment via the study app. In this diary, participants will be asked about their current perceived stress, perceived discrimination, positive and negative affect, fatigue, and coping strategies. Additionally, they will be asked whether discriminatory or stressful events had happened over the course of the day and if so, to describe the event(s). This data entry will not require the collection of a saliva sample.