Prior exposure to racial discrimination and patterns of acute parasympathetic nervous system responses to a race-related stress task among Black adults.

Autor: Volpe VV; Department of Psychology, North Carolina State University, Raleigh, North Carolina, USA., Kendall EB; Department of Statistics, North Carolina State University, Raleigh, North Carolina, USA., Collins AN; Department of Psychology, North Carolina State University, Raleigh, North Carolina, USA., Graham MG; Department of Psychology, North Carolina State University, Raleigh, North Carolina, USA., Williams JP; Department of Statistics, North Carolina State University, Raleigh, North Carolina, USA., Holochwost SJ; Department of Psychology, Lehman College, City University of New York, New York, New York, USA.
Jazyk: angličtina
Zdroj: Psychophysiology [Psychophysiology] 2024 Oct 25, pp. e14713. Date of Electronic Publication: 2024 Oct 25.
DOI: 10.1111/psyp.14713
Abstrakt: Black adults' prior exposure to racial discrimination may be associated with their acute parasympathetic reactivity to and recovery from a new race-related stressor. Existing analytical approaches to investigating this link obscure nuances in the timing, magnitude, and patterns of these acute parasympathetic nervous system (PNS) responses. In a re-analysis of a prior study, we utilize an hidden Markov model (HMM) approach to examine how prior experiences of racial discrimination are associated with intraindividual patterns of (1) physiological states of PNS activity and (2) patterns of and variability in transitions between these physiological states. Participants (N = 118) were Black young adults (range 18-29 years; M age  = 19.67, SD age  = 2.04) who completed an online survey to index prior racial discrimination exposure, followed by an in-person lab visit during which their PNS activity in response to a race-related stress task was measured via electrocardiogram and converted into respiratory sinus arrhythmia. HMMs indicated evidence for two states: baseline and a second state representing a significant reduction in respiratory sinus arrhythmia. Most participants (93.22%) demonstrated a blunted response to the task, indicating that they did not transition from baseline during the procedure. Prior racial discrimination was not associated with HMM states or state transition parameters. Blunted physiological responses may be an important area of future investigation that could inform early life course mental and physical health screenings.
(© 2024 The Author(s). Psychophysiology published by Wiley Periodicals LLC on behalf of Society for Psychophysiological Research.)
Databáze: MEDLINE
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