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Hemispheric dissociation and dyslexia in a computational model of reading

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Hemispheric dissociation and dyslexia in a computational model of reading. / Monaghan, Padraic; Shillcock, Richard C.

In: Brain and Language, Vol. 107, No. 3, 2008, p. 185-193.

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Monaghan, Padraic ; Shillcock, Richard C. / Hemispheric dissociation and dyslexia in a computational model of reading. In: Brain and Language. 2008 ; Vol. 107, No. 3. pp. 185-193.

Bibtex

@article{4f5497c565784d678165f7fe4e3b7384,
title = "Hemispheric dissociation and dyslexia in a computational model of reading",
abstract = "There are several causal explanations for dyslexia, drawing on distinctions between dyslexics and control groups at genetic, biological, or cognitive levels of description. However, few theories explicitly bridge these different levels of description. In this paper we review a long-standing theory that some dyslexics{\textquoteright} reading impairments are due to impairments in hemispheric transfer. We test this theory in a computational model of reading, implementing anatomical features of the visual system. We demonstrate that, when callosal transfer is impaired, the model reads nonwords as well as an unimpaired model, but reads exception words poorly: a pattern of behaviour similar to surface dyslexia. This computational modelling provides a causal link between brain-based theories of dyslexia to cognitive-level theories that refer specifically to phonological impairments within the reading system.",
keywords = "Hemispheric processing, Dyslexia, Computational modelling, Levels of description, VISUAL WORD RECOGNITION, PLANUM TEMPORALE ASYMMETRY, DEVELOPMENTAL DYSLEXIA, CEREBRAL ASYMMETRY, CALLOSAL AGENESIS, CORPUS-CALLOSUM, SIMPLE TASKS, DISABILITY, LANGUAGE, CHILDREN",
author = "Padraic Monaghan and Shillcock, {Richard C.}",
year = "2008",
doi = "10.1016/j.bandl.2007.12.005",
language = "English",
volume = "107",
pages = "185--193",
journal = "Brain and Language",
issn = "0093-934X",
publisher = "Academic Press Inc.",
number = "3",

}

RIS

TY - JOUR

T1 - Hemispheric dissociation and dyslexia in a computational model of reading

AU - Monaghan, Padraic

AU - Shillcock, Richard C.

PY - 2008

Y1 - 2008

N2 - There are several causal explanations for dyslexia, drawing on distinctions between dyslexics and control groups at genetic, biological, or cognitive levels of description. However, few theories explicitly bridge these different levels of description. In this paper we review a long-standing theory that some dyslexics’ reading impairments are due to impairments in hemispheric transfer. We test this theory in a computational model of reading, implementing anatomical features of the visual system. We demonstrate that, when callosal transfer is impaired, the model reads nonwords as well as an unimpaired model, but reads exception words poorly: a pattern of behaviour similar to surface dyslexia. This computational modelling provides a causal link between brain-based theories of dyslexia to cognitive-level theories that refer specifically to phonological impairments within the reading system.

AB - There are several causal explanations for dyslexia, drawing on distinctions between dyslexics and control groups at genetic, biological, or cognitive levels of description. However, few theories explicitly bridge these different levels of description. In this paper we review a long-standing theory that some dyslexics’ reading impairments are due to impairments in hemispheric transfer. We test this theory in a computational model of reading, implementing anatomical features of the visual system. We demonstrate that, when callosal transfer is impaired, the model reads nonwords as well as an unimpaired model, but reads exception words poorly: a pattern of behaviour similar to surface dyslexia. This computational modelling provides a causal link between brain-based theories of dyslexia to cognitive-level theories that refer specifically to phonological impairments within the reading system.

KW - Hemispheric processing

KW - Dyslexia

KW - Computational modelling

KW - Levels of description

KW - VISUAL WORD RECOGNITION

KW - PLANUM TEMPORALE ASYMMETRY

KW - DEVELOPMENTAL DYSLEXIA

KW - CEREBRAL ASYMMETRY

KW - CALLOSAL AGENESIS

KW - CORPUS-CALLOSUM

KW - SIMPLE TASKS

KW - DISABILITY

KW - LANGUAGE

KW - CHILDREN

U2 - 10.1016/j.bandl.2007.12.005

DO - 10.1016/j.bandl.2007.12.005

M3 - Journal article

VL - 107

SP - 185

EP - 193

JO - Brain and Language

JF - Brain and Language

SN - 0093-934X

IS - 3

ER -