Integration of heard and seen speech: a factor in learning disabilities in children
Normal-learning children (NL) and children with learning disabilities (LD) reported their perceptions of unisensory (auditory or visual), concordant audiovisual (e.g. visual /apa/ and auditory /apa/) and conflicting (e.g. visual /aka/ and auditory /apa/) speech stimuli in quiet and noise (0 dB and −...
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| Veröffentlicht in: | Neuroscience letters 2003-11, Vol.351 (1), p.46-50 |
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| creator | Hayes, Erin A. Tiippana, Kaisa Nicol, Trent G. Sams, Mikko Kraus, Nina |
| description | Normal-learning children (NL) and children with learning disabilities (LD) reported their perceptions of unisensory (auditory or visual), concordant audiovisual (e.g. visual /apa/ and auditory /apa/) and conflicting (e.g. visual /aka/ and auditory /apa/) speech stimuli in quiet and noise (0 dB and −12 dB signal-to-noise ratio, SNR). In normal populations, watching such conflicting combinations typically changes auditory percepts (‘McGurk effect’). NL and LD children identified unisensory auditory and congruent audiovisual stimuli similarly in all conditions. Despite being less accurate identifying unisensory visual stimuli, LD children were more likely than NL children to report hearing only the visual component of incongruent audiovisual stimuli at −12 dB SNR. Furthermore, LD children with brainstem timing deficits demonstrated a distinctive pattern of audiovisual perception. The results suggest that the perception of simultaneous auditory and visual speech differs between NL and LD children, perhaps reflecting variations in neural processing underlying multisensory integration. |
| doi_str_mv | 10.1016/S0304-3940(03)00971-6 |
| format | Article |
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In normal populations, watching such conflicting combinations typically changes auditory percepts (‘McGurk effect’). NL and LD children identified unisensory auditory and congruent audiovisual stimuli similarly in all conditions. Despite being less accurate identifying unisensory visual stimuli, LD children were more likely than NL children to report hearing only the visual component of incongruent audiovisual stimuli at −12 dB SNR. Furthermore, LD children with brainstem timing deficits demonstrated a distinctive pattern of audiovisual perception. 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In normal populations, watching such conflicting combinations typically changes auditory percepts (‘McGurk effect’). NL and LD children identified unisensory auditory and congruent audiovisual stimuli similarly in all conditions. Despite being less accurate identifying unisensory visual stimuli, LD children were more likely than NL children to report hearing only the visual component of incongruent audiovisual stimuli at −12 dB SNR. Furthermore, LD children with brainstem timing deficits demonstrated a distinctive pattern of audiovisual perception. The results suggest that the perception of simultaneous auditory and visual speech differs between NL and LD children, perhaps reflecting variations in neural processing underlying multisensory integration.</description><subject>Adolescent</subject><subject>Audiovisual integration</subject><subject>Auditory brainstem response</subject><subject>Auditory perception</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child clinical studies</subject><subject>Developmental disorders</subject><subject>Dyslexia</subject><subject>Female</subject><subject>Humans</subject><subject>Learning disabilities</subject><subject>Learning disorders</subject><subject>Learning Disorders - psychology</subject><subject>Male</subject><subject>McGurk effect</subject><subject>Medical sciences</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychopathology. 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Psychoanalysis. Psychiatry</topic><topic>Psychopathology. Psychiatry</topic><topic>Speech Perception</topic><topic>Visual Perception</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hayes, Erin A.</creatorcontrib><creatorcontrib>Tiippana, Kaisa</creatorcontrib><creatorcontrib>Nicol, Trent G.</creatorcontrib><creatorcontrib>Sams, Mikko</creatorcontrib><creatorcontrib>Kraus, Nina</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Neuroscience letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hayes, Erin A.</au><au>Tiippana, Kaisa</au><au>Nicol, Trent G.</au><au>Sams, Mikko</au><au>Kraus, Nina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Integration of heard and seen speech: a factor in learning disabilities in children</atitle><jtitle>Neuroscience letters</jtitle><addtitle>Neurosci Lett</addtitle><date>2003-11-06</date><risdate>2003</risdate><volume>351</volume><issue>1</issue><spage>46</spage><epage>50</epage><pages>46-50</pages><issn>0304-3940</issn><eissn>1872-7972</eissn><coden>NELED5</coden><abstract>Normal-learning children (NL) and children with learning disabilities (LD) reported their perceptions of unisensory (auditory or visual), concordant audiovisual (e.g. visual /apa/ and auditory /apa/) and conflicting (e.g. visual /aka/ and auditory /apa/) speech stimuli in quiet and noise (0 dB and −12 dB signal-to-noise ratio, SNR). In normal populations, watching such conflicting combinations typically changes auditory percepts (‘McGurk effect’). NL and LD children identified unisensory auditory and congruent audiovisual stimuli similarly in all conditions. Despite being less accurate identifying unisensory visual stimuli, LD children were more likely than NL children to report hearing only the visual component of incongruent audiovisual stimuli at −12 dB SNR. Furthermore, LD children with brainstem timing deficits demonstrated a distinctive pattern of audiovisual perception. The results suggest that the perception of simultaneous auditory and visual speech differs between NL and LD children, perhaps reflecting variations in neural processing underlying multisensory integration.</abstract><cop>Shannon</cop><pub>Elsevier Ireland Ltd</pub><pmid>14550910</pmid><doi>10.1016/S0304-3940(03)00971-6</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 0304-3940 |
| ispartof | Neuroscience letters, 2003-11, Vol.351 (1), p.46-50 |
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| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Adolescent Audiovisual integration Auditory brainstem response Auditory perception Biological and medical sciences Child Child clinical studies Developmental disorders Dyslexia Female Humans Learning disabilities Learning disorders Learning Disorders - psychology Male McGurk effect Medical sciences Psychology. Psychoanalysis. Psychiatry Psychopathology. Psychiatry Speech Perception Visual Perception |
| title | Integration of heard and seen speech: a factor in learning disabilities in children |
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