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Cuspis: A MATLAB Suite for Tasks Investigating Heart-Brain Interactions during fMRI Cover

Cuspis: A MATLAB Suite for Tasks Investigating Heart-Brain Interactions during fMRI

Open Access
|Dec 2023

Abstract

Cuspis (Latin: [kuspis], meaning “sharp point”) is a MATLAB suite for presenting visual stimuli at different phases of the cardiac cycle and is designed to work with an MRI-compatible setup. Cuspis currently reads the electrocardiogram, detects the R-wave according to a user-defined threshold, and displays a visual stimulus with a specific stimulus onset asynchrony. To achieve this, Cuspis works in concert with the BIOPAC Hardware API [1] and Psychtoolbox [2, 3]. The software was developed for tasks investigating heart-brain interactions during functional Magnetic Resonance Imaging, but, in principle, it can be used with different imaging techniques (e.g., electroencephalography), in behavioural research, as well as to trigger stimuli contingent on other bodily rhythms (e.g., respiratory cycle).

DOI: https://doi.org/10.5334/jors.476 | Journal eISSN: 2049-9647
Language: English
Submitted on: Jun 7, 2023
Accepted on: Nov 17, 2023
Published on: Dec 15, 2023
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2023 Valerio Villani, Manos Tsakiris, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.