Uma análise da ausculta dos batimentos cardíacos usada como neurobiofeedback no controle da ansiedade

Abstract

This study examines the hypothesis that, given the existence of a connection between the brain and the heart, listening to one's own heartbeat may play a relevant role in controlling anxiety. Controlled breathing exercises and meditation and mindfulness practices that focus on interoception (internal perception of physiological sensations such as heartbeat) have been shown to be effective in reducing anxiety levels. The present study measured and showed evidence that listening to one's own heartbeat can significantly contribute to reducing anxiety, promoting a better connection between the individual and his/her body and more efficient physiological control of stress. The research was conducted between 2022 and 2024, including pre-processing, acquisition and statistical analysis of heart sound and electroencephalography (EEG) data in the final phase of the study. In addition to the laboratory measurement, a volunteer (BD) used a digital stethoscope for daily heart auscultation practice at home, providing a detailed report of his experience. In addition, testimonies were collected from 15 volunteers, including professionals from related fields, practitioners and non-practitioners of meditation, who had the experience of meditating while listening to their own heart. Anxiety is caused by a complex interaction of biological, psychological and social factors. However, the use of interoception techniques, such as heartbeat perception, has been shown to be an effective approach to modifying emotional and physiological responses. In addition to reducing anxiety, the study revealed that the technique favors the activation of important areas of the brain, such as regions associated with active attention and learning.