Assessing Emotion-Induced Variations of Event-Related Potentials and Heart Rate During Affective Picture Processing

Stefania Coelli, Pierluigi Reali, Anna Maria Bianchi

2024

Abstract

Emotions are psychological responses to stimuli that can induce measurable variations in physiological parameters. While actual emotions span a continuum spectrum, they can be grouped into a finite number of classes or modeled in terms of independent dimensions, the most common of which are arousal (low to high) and valence (positive, neutral, and negative). In this work, we investigated the modulation of physiological parameters related to both the central (CNS) and the autonomic (ANS) nervous systems induced by passive and sustained affective stimulation. Specifically, an Event-Related Potential (ERP) analysis was conducted to explore the effect of the arousal and valence dimensions on cortical activation. Meanwhile, their influence on the ANS activity was evaluated through time-domain heart rate (HR) parameters. When high arousal stimuli are delivered, the experiment revealed that specific ERP components (i.e., P300 and the late positive potential, LPP) are modulated by the valence dimension, with positive and negative images inducing a stronger response than neutral stimuli. Instead, the early posterior negativity (EPN) was found to be influenced by the stimulus arousal but not by the valence of the processed pictures. Finally, HR parameters were principally modulated by the valence of the stimulation, in line with the observed ERP changes and expectations from the literature.

Paper Citation

in EndNote Style

TY - CONF

JO - Proceedings of the 17th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS
TI - Assessing Emotion-Induced Variations of Event-Related Potentials and Heart Rate During Affective Picture Processing
SN - 978-989-758-688-0
AU - Coelli S.
AU - Reali P.
AU - Maria Bianchi A.
PY - 2024
SP - 667
EP - 674
DO - 10.5220/0012430400003657
PB - SciTePress

in Harvard Style

Coelli S., Reali P. and Maria Bianchi A. (2024). Assessing Emotion-Induced Variations of Event-Related Potentials and Heart Rate During Affective Picture Processing. In Proceedings of the 17th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS; ISBN 978-989-758-688-0, SciTePress, pages 667-674. DOI: 10.5220/0012430400003657

in Bibtex Style

@conference{biosignals24,
author={Stefania Coelli and Pierluigi Reali and Anna Maria Bianchi},
title={Assessing Emotion-Induced Variations of Event-Related Potentials and Heart Rate During Affective Picture Processing},
booktitle={Proceedings of the 17th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIOSIGNALS},
year={2024},
pages={667-674},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012430400003657},
isbn={978-989-758-688-0},
}