- Title
- ChoiceKey: a real-time speech recognition program for psychology experiments with a small response set
- Creator
- Donkin, Christopher; Brown, Scott D.; Heathcote, Andrew
- Relation
- Behavior Research Methods Vol. 41, Issue 1, p. 154-162
- Publisher Link
- http://dx.doi.org/10.3758/BRM.41.1.154
- Publisher
- Psychonomic Society
- Resource Type
- journal article
- Date
- 2009
- Description
- Psychological experiments often collect choice responses using buttonpresses. However, spoken responses are useful in many cases—for example, when working with special clinical populations, or when a paradigm demands vocalization, or when accurate response time measurements are desired. In these cases, spoken responses are typically collected using a voice key, which usually involves manual coding by experimenters in a tedious and error-prone manner. We describe ChoiceKey, an open-source speech recognition package for MATLAB. It can be optimized by training for small response sets and different speakers. We show ChoiceKey to be reliable with minimal training for most participants in experiments with two different responses. Problems presented by individual differences, and occasional atypical responses, are examined, and extensions to larger response sets are explored.
- Subject
- ChoiceKey; speech recognition; MATLAB; response times
- Identifier
- uon:7158
- Identifier
- http://hdl.handle.net/1959.13/806574
- Identifier
- ISSN:1554-351X
- Rights
- The final publication is available at www.springerlink.com
- Full Text
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