Just Noticeable Difference Thresholds of Asynchrony and Non-isochrony in a Multi-Instrumental Groove-based Context.

The article focuses on research examining how musicians convey timing nuances in groove-based performances through onset asynchrony and swing, and how listeners perceive these microrhythmic elements. The study involved 64 participants, including both musicians and non-musicians, who completed tasks measuring just-noticeable difference (JND) thresholds for asynchrony and swing in a funk pattern featuring various instruments. Results indicated that musicians generally had lower detection thresholds compared to non-musicians, and pupil dilation was found to correlate with the perception of asynchrony and swing, suggesting its potential as a physiological measure in music perception studies. The findings highlight the complexity of rhythmic perception in musical contexts. [Extracted from the article]