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Effect of Feedback on Pitch Discrimination

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Effects of psychophysical feedback on pitch discrimination in the 2-IFC and the adjustments procedures were investigated in 12 subjects. The difference limens obtained were always better with feedback than without it. This is contradictory to the earlier data in which improvement of scores from session to session was observed, and no effect of feedback on asymptotic performance.


Es werden die Auswirkungen einer psychophysikalischen Rückkopplung auf die Tonhöhenunterscheidung beim 2-IFC und bei Anpassungsprozeduren mit zwölf Versuchspersonen untersucht. Mit Rückkopplung waren die erhaltenen Unterschiedsschwellen stets besser als ohne sie. Dies ist in Widerspruch mit früheren Ergebnissen, bei welchen eine Verbesserung der abgegebenen Urteile von Sitzung zu Sitzung beobachtet wurden und wo keine Wirkung der Rückkopplung auf das asymptotische Ergebnis zutage trat.


L'effet du «feedback» (indication de la réponse correcte) sur la discrimination de hauteur, mesurée par choix forcé sur deux intervalles ou par ajustement, a été étudié sur douze sujets. Les seuils différentiels obtenus sont toujours meilleurs avec feedback que sans. Ceci est en contradiction avec des données antérieures, où l'on observait une amélioration des scores d'une session à l'autre, mais aucun effet du feedback sur la performance asymptotique.
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Document Type: Research Article

Publication date: April 1, 1992

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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