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SeminarPast EventPsychology

The Jena Voice Learning and Memory Test (JVLMT)

Romi Zäske

University of Jena

Schedule
Thursday, May 27, 2021

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Schedule

Thursday, May 27, 2021

6:00 PM Europe/Berlin

Host: AFC Lab & CARLA Talk Series

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Event Information

Domain

Psychology

Original Event

View source

Host

AFC Lab & CARLA Talk Series

Duration

70 minutes

Abstract

The ability to recognize someone’s voice spans a broad spectrum with phonagnosia on the low end and super recognition at the high end. Yet there is no standardized test to measure the individual ability to learn and recognize newly-learnt voices with samples of speech-like phonetic variability. We have developed the Jena Voice Learning and Memory Test (JVLMT), a 20 min-test based on item response theory and applicable across different languages. The JVLMT consists of three phases in which participants are familiarized with eight speakers in two stages and then perform a three-alternative forced choice recognition task, using pseudo sentences devoid of semantic content. Acoustic (dis)similarity analyses were used to create items with different levels of difficulty. Test scores are based on 22 Rasch-conform items. Items were selected and validated in online studies based on 232 and 454 participants, respectively. Mean accuracy is 0.51 with an SD of .18. The JVLMT showed high and moderate correlations with convergent validation tests (Bangor Voice Matching Test; Glasgow Voice Memory Test) and a weak correlation with a discriminant validation test (Digit Span). Empirical (marginal) reliability is 0.66. Four participants with super recognition (at least 2 SDs above the mean) and 7 participants with phonagnosia (at least 2 SDs below the mean) were identified. The JVLMT is a promising screen too for voice recognition abilities in a scientific and neuropsychological context.

Topics

acoustic similarityconvergent validationforced choice recognitionitem response theorymemoryphonagnosiarasch-conform itemssuper recognitionvoice recognition

About the Speaker

Romi Zäske

University of Jena

Contact & Resources

Personal Website

www.personperception.uni-jena.de/team/romi-zaske/

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