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Assessment of Ultrasonic Vocalizations During Drug Self-administration in Rats

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Published on: July 22, 2010

A software program to assist coding of prelinguistic vocalizations in real time.

Elisabeth Willadsen¹, Christina Persson², Duncan Appelbe³

¹a Department of Nordic Studies and Linguistics , University of Copenhagen , Denmark.

Clinical Linguistics & Phonetics

|June 19, 2018

Summary

A new software, TimeStamper, offers a faster way to analyze infant speech development by assessing canonical babbling ratio and syllable size. This tool aids researchers in real-time coding of prelinguistic vocalizations, improving consistency in speech and language studies.

Keywords:

Prelinguistic vocalizations TimeStamper canonical babbling real time listening syllable inventory size

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Area of Science:

Speech-Language Pathology
Developmental Psychology
Bioacoustics

Background:

Prelinguistic utterances are crucial precursors to speech development.
Traditional phonetic transcription of infant vocalizations is time-consuming and labor-intensive.
Accurate assessment of early vocalizations is vital for predicting later speech and language outcomes.

Purpose of the Study:

To introduce and present the TimeStamper software for efficient, real-time coding of prelinguistic vocalizations.
To ensure consistency in coding procedures within a large-scale research trial.
To provide a more time-efficient methodology for assessing canonical babbling ratio and syllable inventory size.

Main Methods:

Development of the TimeStamper software for real-time analysis of audio/video recordings.
Coders assess speech-like syllables as canonical or non-canonical without pausing.
Automatic calculation of the canonical babbling ratio and assessment of syllable inventory size.

Main Results:

TimeStamper facilitates real-time coding of prelinguistic vocalizations, enhancing efficiency.
The software ensures consistency in coding procedures across multiple researchers.
Automated analysis provides objective measures of canonical babbling and syllable diversity.

Conclusions:

TimeStamper offers a significant advancement in the real-time assessment of infant speech precursors.
The software improves the efficiency and reliability of analyzing prelinguistic vocalizations.
Free access to TimeStamper is provided to aid further research in speech and language development.