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Abstract #3448

Autonomic Regression in fMRI during Alertness: Insights from Respiration, Pupil Size, and PPG Amplitude

Kübra Eren1, Belal Tavashi1, Kadir Berat Yıldırım1, Elif Can1, Cem Karakuzu1, Lina Alqam1, Alp Dinçer2, and Pinar S Ozbay3
1Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey, 2Department of Radiology, Acibadem University, Istanbul, Turkey, 3Boğaziçi University, Istanbul, Turkey

Synopsis

Keywords: fMRI Analysis, fMRI, physiology, regression, task

Motivation: Understanding autonomic regulation during a cognitive task is vital for unraveling its neural mechanisms. This study delves into autonomic regression in fMRI, examining the roles of respiration, pupil size, and PPG amplitude during alertness.

Goal(s): Our goal is to enhance our understanding of the autonomic nervous system's response to alert conditions by analyzing fMRI data and modeling with various physiological signals.

Approach: Through the examination of respiration, pupil size, and PPG amplitude and fMRI, we aim to reveal patterns of autonomic regression.

Results: The results uncover significant associations between autonomic parameters and fMRI, shedding light on the neuro-physiological correlates of cognitive stress.

Impact: Our findings advance strategies for managing systemic variations during alert conditions, providing valuable insights for fMRI researchers.

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Keywords