The visual attention span deficit in dyslexia is visual and not verbal

Autor: Rachel Zoubrinetzky, Sylviane Valdois, Muriel Lobier
Přispěvatelé: Laboratoire de Psychologie et NeuroCognition (LPNC), Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Male
genetic structures
[SHS.PSY]Humanities and Social Sciences/Psychology
Neuropsychological Tests
Task (project management)
Dyslexia
Visual processing
0302 clinical medicine
Reading (process)
MESH: Child
Attention
Child
10. No inequality
media_common
Intelligence Tests
Intelligence quotient
05 social sciences
MESH: Neuropsychological Tests
MESH: International Classification of Diseases
Neuropsychology and Physiological Psychology
Categorization
Visual Perception
Female
[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]
Psychology
Cognitive psychology
MESH: Dyslexia
Adolescent
Span (category theory)
Cognitive Neuroscience
media_common.quotation_subject
Experimental and Cognitive Psychology
MESH: Psychomotor Performance
MESH: Reading
behavioral disciplines and activities
050105 experimental psychology
03 medical and health sciences
International Classification of Diseases
medicine
Humans
Visual attention
0501 psychology and cognitive sciences
MESH: Adolescent
MESH: Attention
MESH: Verbal Behavior
MESH: Humans
MESH: Visual Perception
Verbal Behavior
medicine.disease
MESH: Male
Reading
MESH: Intelligence Tests
MESH: Female
Psychomotor Performance
030217 neurology & neurosurgery
Zdroj: Cortex
Cortex, Elsevier, 2012, 48 (6), pp.768-73. ⟨10.1016/j.cortex.2011.09.003⟩
ISSN: 0010-9452
DOI: 10.1016/j.cortex.2011.09.003⟩
Popis: International audience; The visual attention (VA) span deficit hypothesis of dyslexia posits that letter string deficits are a consequence of impaired visual processing. Alternatively, some have interpreted this deficit as resulting from a visual-to-phonology code mapping impairment. This study aims to disambiguate between the two interpretations by investigating performance in a non-verbal character string visual categorization task with verbal and non-verbal stimuli. Results show that VA span ability predicts performance for the non-verbal visual processing task in normal reading children. Furthermore, VA span impaired dyslexic children are also impaired for the categorization task independently of stimuli type. This supports the hypothesis that the underlying impairment responsible for the VA span deficit is visual, not verbal.
Databáze: OpenAIRE