A vocal response time system for use with sentence verification tasks

James, Chris

doi:10.3758/bf03203638

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…However, this approach is time consuming, especially when running experiments with a large number of trials and participants. As a work-around, some authors have used software algorithms that are designed to mimic human visual analysis (e.g., James, 1996). However, this has never been popular in research practice, probably because of the technical problems that may follow from this approach.…”

Section: Discussionmentioning

confidence: 99%

“…A second elegant technical solution has been suggested by Tyler et al (2005). Following the software algorithm of James (1996) mentioned above, and similar to the integrator voice key, they recently proposed an improved analogue voice key that is basically a standard threshold voice key with minimum signal and silence duration settings. Because this voice key also uses a certain timeframe to decide whether sound is speech or not, they labeled this device as a delayed trigger voice key (DTVK).…”

Section: Discussionmentioning

confidence: 99%

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Improving accuracy in detecting acoustic onsets.

Duyck

Anseel

Szmalec³

et al. 2008

Journal of Experimental Psychology: Human Perception and Perfor

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In current cognitive psychology, naming latencies are commonly measured by electronic voice keys that detect when sound exceeds a certain amplitude threshold. However, recent research (e.g., K. Rastle & M. H. Davis, 2002) has shown that these devices are particularly inaccurate in precisely detecting acoustic onsets. In this article, the authors discuss the various problems and solutions that have been put forward with respect to this issue and show that classical voice keys may trigger several tens of milliseconds later than acoustic onset. The authors argue that a solution to this problem may come from voice keys that use a combination of analogue and digital noise (nonspeech sound) detection. It is shown that the acoustic onsets detected by such a device are only a few milliseconds delayed and correlate highly (up to .99) with reaction time values obtained by visual waveform inspection.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Improving accuracy in detecting acoustic onsets.

Duyck

Anseel

Szmalec³

et al. 2008

Journal of Experimental Psychology: Human Perception and Perfor

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Visuospatial priming of the mental number line

et al. 2008

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The delayed trigger voice key: An improved analogue voice key for psycholinguistic research

Tyler

Burnham

2005

Behavior Research Methods

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Many researchers rely on analogue voice keys for psycholinguistic research. However, the triggering of traditional simple threshold voice keys (STVKs) is delayed after response onset, and the delay duration may vary depending on initial phoneme type. The delayed trigger voice key (DTVK), a stand-alone electronic device that incorporates an additional minimum signal duration parameter, is described and validated in two experiments. In Experiment 1, recorded responses from a nonword naming task were presented to the DTVK and an STVK. As compared with hand-coded reaction times from visual inspection of the waveform, the DTVK was more accurate than the STVK, overall and across initial phoneme type. Rastle and Davis (2002) showed that an STVK more accurately detected an initial [s] when it was followed by a vowel than when followed by a consonant. Participants' responses from that study were presented to the DTVK in Experiment 2, and accuracy was equivalent for initial [s] in vowel and consonant contexts. Details for the construction of the DTVK are provided.

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A vocal response time system for use with sentence verification tasks

Cited by 3 publications

References 12 publications

Improving accuracy in detecting acoustic onsets.

Improving accuracy in detecting acoustic onsets.

Visuospatial priming of the mental number line

The delayed trigger voice key: An improved analogue voice key for psycholinguistic research

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