Dataset Information

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

ABSTRACT: Numerous studies have confirmed that prelinguistic utterances are precursors to speech, and there is ample evidence that, for example, frequency of canonical syllables and syllable inventory size correlate with speech and language measures at older ages. Traditionally, prelinguistic utterances have been assessed by phonetic transcription which is difficult and time-consuming in infants. Recently, a more time-efficient methodology to assess prelinguistic utterances in real time, called naturalistic listening, was developed (Ramsdell et al., 2012). In a large international NIDCR-funded randomized controlled trial, Timing of Primary Surgery for with Cleft Palate (TOPS), including many coders, a software program (TimeStamper) was developed to assist in coding of prelinguistic vocalizations in real time, to ensure consistency of the coding procedures. Coders upload a video (or audio) file and watch and listen to the recording in real time without any possibility of pausing or taking notes. In real time, the coder registers each speech-like syllable as canonical or non-canonical. TimeStamper automatically calculates the percentage of canonical syllables of all syllables registered (canonical babbling ratio). At the end of a recording, TimeStamper assists in assessing presence/absence of canonical babbling and syllable inventory size. The software is presented and instructions for free access are provided.

SUBMITTER: Willadsen E

PROVIDER: S-EPMC6329936 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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

Willadsen Elisabeth E Persson Christina C Appelbe Duncan D

Clinical linguistics & phonetics 20180618 10

Numerous studies have confirmed that prelinguistic utterances are precursors to speech, and there is ample evidence that, for example, frequency of canonical syllables and syllable inventory size correlate with speech and language measures at older ages. Traditionally, prelinguistic utterances have been assessed by phonetic transcription which is difficult and time-consuming in infants. Recently, a more time-efficient methodology to assess prelinguistic utterances in real time, called naturalist ...[more]

PMID: 29913085

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Project description:This work presents a comprehensive commissioning and workflow development process of a real-time, ultrasound (US) image-guided treatment planning system (TPS), a stepper and a US unit. To adequately benchmark the system, commissioning tasks were separated into (1) US imaging, (2) stepper mechanical, and (3) treatment planning aspects. Quality assurance US imaging measurements were performed following the AAPM TG-128 and GEC-ESTRO recommendations and consisted of benchmarking the spatial resolution, accuracy, and low-contrast detectability. Mechanical tests were first used to benchmark the electronic encoders within the stepper and were later expanded to evaluate the needle free length calculation accuracy. Needle reconstruction accuracy was rigorously evaluated at the treatment planning level. The calibration length of each probe was redundantly checked between the calculated and measured needle free length, which was found to be within 1 mm for a variety of scenarios. Needle placement relative to a reference fiducial and coincidence of imaging coordinate origins were verified to within 1 mm in both sagittal and transverse imaging planes. The source strength was also calibrated within the interstitial needle and was found to be 1.14% lower than when measured in a plastic needle. Dose calculations in the TPS and secondary dose calculation software were benchmarked against manual TG-43 calculations. Calculations among the three calculation methods agreed within 1% for all calculated points. Source positioning and dummy coincidence was tested following the recommendations of the TG-40 report. Finally, the development of the clinical workflow, checklists, and planning objectives are discussed and included within this report. The commissioning of real-time, US-guided HDR prostate systems requires careful consideration among several facets including the image quality, dosimetric, and mechanical accuracy. The TPS relies on each of these components to develop and administer a treatment plan, and as such, should be carefully examined.

Dataset Information

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

Publications

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

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