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Testing Infants' Discrimination With the Orientation Latency Procedure
Author(s) -
Gout Ariel,
Christophe Anne,
Dupoux Emmanuel
Publication year - 2002
Publication title -
infancy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 69
eISSN - 1532-7078
pISSN - 1525-0008
DOI - 10.1207/s15327078in0302_8
Subject(s) - psychology , latency (audio) , orientation (vector space) , audiology , test (biology) , cognitive psychology , computer science , mathematics , medicine , telecommunications , paleontology , geometry , biology
A new discrimination procedure based on the measurement of visual orientation latency to speech stimuli is introduced. Each participant listens to a series of short familiarization test trials. In each trial, 5 to 7 centrally‐presented familiarization stimuli are followed by laterally‐presented test stimuli. Infants were found to orient faster to different‐category than to same‐category test stimuli. This result was found despite a high degree of prosodic variability in the familiarization and test stimuli introduced by changes in talker and speaking rate. The combination of a multitrial design with use of acoustic and prosodic variability seems suitable for studying the representation of phonological categories.