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ERIC Number: ED617632
Record Type: Non-Journal
Publication Date: 2018-Dec
Pages: 17
Abstractor: As Provided
ISBN: N/A
ISSN: EISSN-
EISSN: N/A
An Eye-Tracking Study of Receptive Verb Knowledge in Toddlers
Valleau, Matthew James; Konishi, Haruka; Golinkoff, Roberta Michnick; Hirsh-Pasek, Kathy; Arunachalam, Sudha
Grantee Submission, Journal of Speech, Language, and Hearing Research v61 p2917-2933 Dec 2018
Purpose: We examined receptive verb knowledge in 22- to 24-month-old toddlers with a dynamic video eye-tracking test. The primary goal of the study was to examine the utility of eye-gaze measures that are commonly used to study noun knowledge for studying verb knowledge. Method: Forty typically developing toddlers participated. They viewed 2 videos side by side (e.g., girl clapping, same girl stretching) and were asked to find one of them (e.g., "Where is she clapping?"). Their eye-gaze, recorded by a Tobii T60XL eye-tracking system, was analyzed as a measure of their knowledge of the verb meanings. Noun trials were included as controls. We examined correlations between eye-gaze measures and score on the MacArthur-Bates Communicative Development Inventories (CDI; Fenson et al., 1994), a standard parent report measure of expressive vocabulary to see how well various eye-gaze measures predicted CDI score. Results: A common measure of knowledge--a 15% increase in looking time to the target video from a baseline phase to the test phase--did correlate with CDI score but operationalized differently for verbs than for nouns. A 2nd common measure, latency of 1st look to the target, correlated with CDI score for nouns, as in previous work, but did not for verbs. A 3rd measure, fixation density, correlated for both nouns and verbs, although the correlation went in different directions. Conclusions: The dynamic nature of videos depicting verb knowledge results in differences in eye-gaze as compared to static images depicting nouns. An eye-tracking assessment of verb knowledge is worthwhile to develop. However, the particular dependent measures used may be different than those used for static images and nouns. [This article was published in "Journal of Speech, Language, and Hearing Research" (EJ1199778).]
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institutes of Health (NIH) (DHHS); Institute of Education Sciences (ED)
Authoring Institution: N/A
Identifiers - Assessments and Surveys: MacArthur Communicative Development Inventory
IES Funded: Yes
Grant or Contract Numbers: K01DC013306; R305A110284; R324A160241