Terrie E. Moffitt on Language Development - Dictionary of Arguments
Slater I 193
Language Development/phonetics/Moffitt: Moffitt (1971)(1) conducted a study of speech discrimination in 5—6 month olds that appeared in print before Eimas et al. (1971)(2), but only a between-category /ba/ — /ga/ contrast was tested. Using a heart-rate measure, Moffitt showed that infants can discriminate this contrast before six months of age. Cf. >Phonetics/Eimas, >Language development/Eimas, >Language Development/psychological theories.
Slater I 192
Categorical Perception (CP): This special mode of perception was characterized by two crucial properties:
(a) tokens presented from a physical continuum were identified (labeled) as a member of one category or the other, with a sharp transition in identification (ID) at the category boundary, and
(b) failure of within-category discrimination and a peak in between-category discrimination for tokens that straddled the category boundary.
(…) [T]he goal of the Eimas et al. (1971)(2) study was to determine whether very young infants, who had no experience producing speech or speech-like sounds, and only limited exposure to the sounds of their native language, perceived these sounds in a categorical manner.
>Categorical perception/psychological theories.
1. Moffitt, A. R. (1971). Consonant cue perception by twenty- to twenty-four-week-old infants. Child
Development, 42, 717—731.
2. Eimas, P. D., Siqueland, E. R.,Jusczyk, P., & Vigorito, J. (1971). Speech perception in infants. Science, 171, 303-306.
Richard N. Aslin, “Language Development. Revisiting Eimas et al.‘s /ba/ and /pa/ Study”, in: Alan M. Slater and Paul C. Quinn (eds.) 2012. Developmental Psychology. Revisiting the Classic Studies. London: Sage Publications_____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Author1]Vs[Author2] or [Author]Vs[term] is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.
|Moffitt, Terrie E.
Alan M. Slater
Paul C. Quinn
Developmental Psychology. Revisiting the Classic Studies London 2012