title: Decreased sensitivity to phonemic mismatch in spoken word processing in adult developmental dyslexia.
abstract: Initial lexical activation in typical populations is a direct reflection of the goodness of fit between the presented stimulus and the intended target. In this study, lexical activation was investigated upon presentation of polysyllabic pseudowords (such as procodile for crocodile) for the atypical population of dyslexic adults to see to what extent mismatching phonemic information affects lexical activation in the face of overwhelming support for one specific lexical candidate. Results of an auditory lexical decision task showed that sensitivity to phonemic mismatch was less in the dyslexic population, compared to the respective control group. However, the dyslexic participants were outperformed by their controls only for word-initial mismatches. It is argued that a subtle speech decoding deficit affects lexical activation levels and makes spoken word processing less robust against distortion.
authors.affiliation: Utrecht Institute of Linguistics OTS (Utrecht University), Janskerkhof 13, 3512 BL Utrecht, The Netherlands. esther.janse@mpi.nl
authors.forename: Esther
authors.initials: E
authors.lastname: Janse
authors.forename: Elise
authors.initials: E
authors.lastname: de Bree
authors.forename: Susanne
authors.initials: S
authors.lastname: Brouwer
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000368:Aged; D003657:Decision Making; D004410:Dyslexia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007802:Language; D007807:Language Tests; D008297:Male; D008875:Middle Aged; D021641:Recognition, Psychology; D013067:Speech Perception
references.citation: Dyslexia. 2004 Nov;10(4):265-88
references.pmid: 15573960
references.citation: J Exp Child Psychol. 1997 Aug;66(2):211-35
references.pmid: 9245476
references.citation: Brain Lang. 1990 Nov;39(4):485-97
references.pmid: 2076492
references.citation: Science. 2001 Mar 16;291(5511):2165-7
references.pmid: 11251124
references.citation: Brain Lang. 1980 Mar;9(2):182-98
references.pmid: 7363063
references.citation: Brain. 1996 Feb;119 ( Pt 1):143-57
references.pmid: 8624677
references.citation: J Speech Hear Res. 1993 Aug;36(4):850-63
references.pmid: 8377497
references.citation: Curr Opin Neurobiol. 2003 Apr;13(2):212-8
references.pmid: 12744976
references.citation: Dyslexia. 2002 Oct-Dec;8(4):204-25
references.pmid: 12455851
references.citation: Clin Linguist Phon. 2007 Nov-Dec;21(11-12):935-44
references.pmid: 17882690
references.citation: J Exp Child Psychol. 2006 Sep;95(1):1-17
references.pmid: 16546204
references.citation: Science. 1970 Jan 23;167(3917):392-3
references.pmid: 5409744
references.citation: Q J Exp Psychol (Hove). 2008 Jan;61(1):129-41
references.pmid: 18038344
references.citation: Cognition. 1994 Sep;52(3):163-87
references.pmid: 7956004
references.citation: Cogn Neuropsychol. 2004 Mar 1;21(2):213-28
references.pmid: 21038201
references.citation: Science. 1995 Jun 16;268(5217):1632-4
references.pmid: 7777863
references.citation: J Speech Lang Hear Res. 2001 Apr;44(2):384-99
references.pmid: 11324660
references.citation: J Speech Lang Hear Res. 2009 Dec;52(6):1510-29
references.pmid: 19635940
references.citation: Dyslexia. 2005 Nov;11(4):253-68
references.pmid: 16355747
references.citation: J Speech Lang Hear Res. 2004 Oct;47(5):1030-47
references.pmid: 15603461
references.citation: J Exp Child Psychol. 1997 Feb;64(2):199-231
references.pmid: 9120381
references.citation: J Exp Child Psychol. 1998 Aug;70(2):75-96
references.pmid: 9729450
references.citation: Child Dev. 1990 Dec;61(6):1753-78
references.pmid: 2083497
references.citation: J Exp Child Psychol. 1986 Jun;41(3):489-507
references.pmid: 3734692
references.citation: J Exp Child Psychol. 2001 Nov;80(3):245-70
references.pmid: 11583525
references.citation: Ear Hear. 1998 Feb;19(1):1-36
references.pmid: 9504270
references.citation: Percept Psychophys. 2006 Jan;68(1):1-16
references.pmid: 16617825
references.citation: Cognition. 2008 Jun;107(3):946-77
references.pmid: 18262177
references.citation: Int J Psychophysiol. 2001 Feb;40(1):77-87
references.pmid: 11166109
references.citation: J Child Psychol Psychiatry. 2004 Mar;45(3):631-40
references.pmid: 15055381
references.citation: J Child Psychol Psychiatry. 2004 Jan;45(1):2-40
references.pmid: 14959801
references.citation: Ann Dyslexia. 1995 Jan;45(1):1-27
references.pmid: 24234186
references.citation: Dyslexia. 2001 Jan-Mar;7(1):37-46
references.pmid: 11305230
references.citation: J Speech Lang Hear Res. 1999 Aug;42(4):925-42
references.pmid: 10450912
references.citation: J Speech Lang Hear Res. 2006 Oct;49(5):1072-84
references.pmid: 17077215
references.citation: Cognition. 2003 Nov;90(1):51-89
references.pmid: 14597270
references.citation: Brain. 2003 Apr;126(Pt 4):841-65
references.pmid: 12615643