The aim of this study was to find an efficient method to determine features that characterize octave illusion data. Specifically, this study compared the efficiency of several automatic feature selection methods for automatic feature extraction of the auditory steady-state responses (ASSR) data in brain activities to distinguish auditory octave illusion and nonillusion groups by the difference in ASSR amplitudes using machine learning. We compared univariate selection, recursive feature elimination, principal component analysis, and feature importance by testifying the results of feature selection methods by using several machine learning algorithms: linear regression, random forest, and support vector machine. The univariate selection with the SVM as the classification method showed the highest accuracy result, 75%, compared to 66.6% without using feature selection. The received results will be used for future work on the explanation of the mechanism behind the octave illusion phenomenon and creating an algorithm for automatic octave illusion classification.
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http://dx.doi.org/10.3390/s21196407 | DOI Listing |
Atten Percept Psychophys
December 2024
Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada.
Past research suggests that pitch height can influence the perceived tempo of speech and music, such that higher-pitched signals seem faster than lower-pitched ones. However, previous studies have analyzed perceived tempo across a relatively limited range of fundamental frequencies. To investigate whether this higher-equals-faster illusion generalizes across the wider range of human hearing, we conducted a series of five experiments.
View Article and Find Full Text PDFPLoS Comput Biol
June 2023
School of Life Sciences, University of Sussex, Brighton, United Kingdom.
An object's colour, brightness and pattern are all influenced by its surroundings, and a number of visual phenomena and "illusions" have been discovered that highlight these often dramatic effects. Explanations for these phenomena range from low-level neural mechanisms to high-level processes that incorporate contextual information or prior knowledge. Importantly, few of these phenomena can currently be accounted for in quantitative models of colour appearance.
View Article and Find Full Text PDFPsychol Res
October 2023
Faculty of Medicine, Université Laval, Quebec City, Canada.
The octave illusion (Deutsch, 1974) is a well-known auditory illusion elicited by presenting a dichotic sequence of two tones separated by an octave during which the high and low tones alternate between both ears. This illusion engages an important mechanism of auditory perception, which is pitch perception. Previous studies used central frequencies of the useful musical spectrum to elicit the illusion.
View Article and Find Full Text PDFMem Cognit
November 2022
Department of Psychology and Child Development, California Polytechnic State University, 1 Grand Ave, San Luis Obispo, CA, 93407, USA.
The tritone paradox is a musical illusion consisting of pairs of octave-ambiguous tones that could be heard as ascending or descending in pitch. This study investigated whether perception of the tritone paradox can be unconsciously influenced by a masked visual prime - specifically, a musical notation. In Experiment 1, participants were first given a "neutral" masked prime (an image of an empty music staff) to assess baseline perception.
View Article and Find Full Text PDFSensors (Basel)
September 2021
Graduate School of Science and Engineering, Tokyo Denki University, Hiki-gun, Saitama 350-0394, Japan.
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