FluencyBank English IISRP Corpus

	Nicoline Ambrose Hearing and Speech Sciences University of Illinois nambrose@illinois.edu website
	Ehud Yairi Hearing and Speech Sciences University of Illinois - website

Participants:	88 CWS, 40 controls
Type of Study:	clinical
Location:	USA
Media type:	audio
DOI:	doi:10.21415/T5KX2D

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Citation information

Users of this corpus should the following publication:

Yairi, E. & Ambrose, N. (2005). Early childhood stuttering. Austin: Pro Ed.

For a full bibliography, please click here.

Project Description

This corpus includes:

440 samples from 88 CWS, 5 samples each, 6 months apart
67 additional samples from the same children, an additional year later
37 of the same children, samples taken 3 months after the initial visit (between visits 1 & 2) from children seen close to onset
160 samples (approx..) from CWNS, 4 samples each, one year apart

The general objective of the Illinois International Stuttering Research Project is to study the onset and subsequent developmental course of stuttering in children under age six. The specific objectives are to:

determine variations in onset and their possible effect on the future course of the disorder,
describe and quantify changes that occur in stuttering over time,
obtain data on the timing and magnitude of natural recovery,
identify factors that can influence the recovery and those that lead to chronic stuttering, and
identify means for making early prediction of the likelihood of chronic vs. transient stuttering.

The general investigation involves a wide range of testing of young children as close as possible to the onset of stuttering. This includes tests of speech, language, hearing, motor skills, intellectual functioning, and emotional reactions, as well as audio and video recordings, thorough case histories, and familial pedigrees. After initial testing we proceed with follow-ups every six months for a period of several years. Through this close monitoring, we document what happens to children who begin stuttering and generate criteria for risks. The National Institutes of Health, National Institute on Deafness and Other Communication Disorders funded this project for more than 12 years.

For a full list of researchers involved in this project, click here

Codes

Stuttering-like disfluencies are coded as:

PW part-word repetition of a sound or syllable, the number refers to how many extra times
WW single syllable whole word repetition
DP disrhythmic phonation, blocks or prolongations (reliably identified by two experienced listeners, as are all disfluencies but these are the hardest to be reliable on)

"Normal"-like disfluencies are coded as:

M multiple syllable word repetition
P phrase repetition
I interjection, um, er, uh etc., NOT "real" words such as "well" or "like"
R revision

Here are two examples:

(block)I wa-wa-waaaaant w-want some um um cookies cookies

[DP]I [DP][PW3][WW1]want some [I2] [M1]cookies.

Ca-ca-can I play play play so-so-some some of those toys?

[PW2]CAN I [WW2]PLAY [PW2][WW1]SOME OF THOSE TOY/S?

Acknowledgements

Andrew Yankes reformatted this corpus into accord with current versions of CHAT.