Projecten per jaar
Samenvatting
One curious aspect of human timing is the organization of rhythmic patterns in small integer ratios. Behavioral and neural research has shown that adjacent time intervals in rhythms tend to be perceived and reproduced as approximate fractions of small numbers (e.g., 3/2). Recent work on iterated learning and reproduction further supports this: given a randomly timed drum pattern to reproduce, participants subconsciously transform it toward small integer ratios. The mechanisms accounting for this “attractor” phenomenon are little understood, but might be explained by combining two theoretical frameworks from psychophysics. The scalar expectancy theory describes time interval perception and reproduction in terms of Weber's law: just detectable durational differences equal a constant fraction of the reference duration. The notion of categorical perception emphasizes the tendency to perceive time intervals in categories, i.e., “short” vs. “long.” In this piece, we put forward the hypothesis that the integerratio bias in rhythm perception and production might arise from the interaction of the scalar property of timing with the categorical perception of time intervals, and that neurally it can plausibly be related to oscillatory activity. We support our integrative approach with mathematical derivations to formalize assumptions and provide testable predictions. We present equations to calculate durational ratios by: (i) parameterizing the relationship between durational categories, (ii) assuming a scalar timing constant, and (iii) specifying one (of K) category of ratios. Our derivations provide the basis for future computational, behavioral, and neurophysiological work to test our model.
Originele taal2  English 

Artikelnummer  86 
Aantal pagina's  9 
Tijdschrift  Frontiers in Computational Neuroscience 
Volume  12 
DOI's  
Status  Published  28 nov 2018 
Vingerafdruk
Duik in de onderzoeksthema's van 'Why do durations in musical rhythms conform to small integer ratios?'. Samen vormen ze een unieke vingerafdruk.Projecten
 1 Afgelopen

FWOTM844: FWO Uitgaand [PEGASUS] ² Marie SklodowskaCurie Fellowship Partnerschapsovereenkomst Andrea Ravignani
Ravignani, A. & De Boer, B.
1/04/17 → 31/03/20
Project: Fundamenteel