Effect of Perceptual Load on Semantic Access by Speech in Children.
Purpose: To examine whether semantic access by speech requires attention in children. Method: Children (N = 200) named pictures and ignored distractors on a cross-modal (distractors: auditory-no face) or multimodal (distractors: auditory-static face and audiovisual- dynamic face) picture word task....
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 56; no. 2; pp. 388 - 404 |
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| Autores principales: | , , , , , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Apr2013
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=90492868&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 90492868 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Apr2013 vid: 56 iid: 2 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 90492868 10.1044/1092-4388(2012/11-0186) ppf: 388 ppct: 16 formats: fmt: @attributes: type: P size: 16.1MB tig: atl: Effect of Perceptual Load on Semantic Access by Speech in Children. aug: au: Jerger, Susan Damian, Markus F. Mills, Candice Bartlett, James Tye-Murray, Nancy Abdi, Hervé Bacon, Sid Goldinger, Steve affil: University of Texas, Dallas University of Bristol, United Kingdom Central Institute for the Deaf, Washington University School of Medicine, St. Louis, MO su: Analysis of variance Semantics Distraction Attention in children Audiovisual materials Audiometry Research funding Space perception Speech perception in children Statistics Vision testing Visual acuity Visual perception in children Data analysis Descriptive statistics sug: subj: Analysis of variance Semantics Distraction Attention in children Audiovisual materials Audiometry Research funding Space perception Speech perception in children Statistics Vision testing Visual acuity Visual perception in children Data analysis Descriptive statistics keyword: audiovisual speech children development perceptual load picture word task semantic access audiovisual speech children development perceptual load picture word task semantic access ab: Purpose: To examine whether semantic access by speech requires attention in children. Method: Children (N = 200) named pictures and ignored distractors on a cross-modal (distractors: auditory-no face) or multimodal (distractors: auditory-static face and audiovisual- dynamic face) picture word task. The cross-modal task had a low load, and the multimodal task had a high load (i.e., respectively naming pictures displayed on a blank screen vs. below the talker's face on his T-shirt). Semantic content of distractors was manipulated to be related vs. unrelated to the picture (e.g., picture "dog" with distractors "bear" vs. "cheese"). If irrelevant semantic content manipulation influences naming times on both tasks despite variations in loads, Lavie's (2005) perceptual load model proposes that semantic access is independent of capacity-limited attentional resources; if, however, irrelevant content influences naming only on the cross-modal task (low load), the perceptual load model proposes that semantic access is dependent on attentional resources exhausted by the higher load task. Results: Irrelevant semantic content affected performance for both tasks in 6- to 9-year-olds but only on the cross-modal task in 4- to 5-year-olds. The addition of visual speech did not influence results on the multimodal task. Conclusion: Younger and older children differ in dependence on attentional resources for semantic access by speech. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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