The effects of linguistic experience on cerebral lateralization for speech production in normal hearing and deaf adolescents

Marcotte, Ann C.; LaBarba, Richard C.

doi:10.1016/0093-934x(87)90075-7

Cited by 14 publications

(4 citation statements)

References 33 publications

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“…Previous work suggests that deafness results in a change to the normal pattern of cortical hemispheric specialization for language and visual-spatial processing (Marcotte & LaBarba, 1987; Neville et al, 1998;Wolff & Thatcher, 1990). For instance, deaf native signers of American Sign Language show an anomalous pattern of right-hemisphere brain activity when reading English (Neville et al, 1998), presumably because of a reliance on the right hemisphere for visual-form processing.…”

Section: Discussionmentioning

confidence: 99%

Nonverbal Cognition in Deaf Children Following Cochlear Implantation: Motor Sequencing Disturbances Mediate Language Delays

Conway

Karpicke

Anaya

et al. 2011

Developmental Neuropsychology

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We assessed profoundly deaf children with cochlear implants (CIs) (N = 24) and age-matched normal-hearing children (N = 31) on several nonverbal cognition measures: motor sequencing, tactile discrimination, response inhibition, visual-motor integration, and visual-spatial processing. The results revealed that the children with CIs showed disturbances solely on motor sequencing and that performance on this task was significantly correlated with scores on the Clinical Evaluation of Language Fundamentals, 4th Edition (CELF–4). These findings suggest that a period of auditory deprivation before cochlear implantation affects motor sequencing skills, which in turn may mediate the language delays displayed by some deaf children with CIs.

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Section: Discussionmentioning

confidence: 99%

Nonverbal Cognition in Deaf Children Following Cochlear Implantation: Motor Sequencing Disturbances Mediate Language Delays

Conway

Karpicke

Anaya

et al. 2011

Developmental Neuropsychology

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“…However, there are some subtle differences. Hemispheric specialization is atypical for language (Marcotte and LaBarba 1987) and visuospatial processing, in both childhood (Rapin 1979) and adulthood (Neville and Lawson 1987). Some studies have found visuospatial processing to be enhanced, which has been interpreted as a consequence of training in American Sign Language (Parasnis et al 1996).…”

Section: Discussionmentioning

confidence: 99%

Non‐verbal development of children with deafness with and without cochlear implants

Schlumberger

Narbona

Manrique

2004

Develop Med Child Neuro

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Deprivation of sensory input affects neurological development. Our objective was to explore clinically the role of hearing in development of sensorimotor integration and non-verbal cognition. The study involved 54 children (15 males, 39 females; 5 to 9 years old) with severe or profound bilateral prelocutive deafness but without neurological or cognitive impairment. Of these, 25 had received an early cochlear implant (CIm). Patients were compared with 40 children with normal hearing. All were given a battery of non-verbal neuropsychological tests and a balance test, and were timed for simple and complex movement of limbs. Deafness, whether treated by CIm or not, resulted in a delay in development of complex motor sequences and balance. Lack of auditory input was also associated with lower, but non-pathological, scores in visual gnoso-praxic tasks and sustained attention. Such differences were not observed in children with CIm. Hearing contributes to clinical development of spatial integration, motor control, and attention. An early CIm enables good verbal development and might also improve non-verbal capacities.

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“…Studies of acquired deafness (in families that do not sign) suggest that the left hemisphere needs about 3 years of initial access to speech if it is to acquire disproportionate responsibility for language (Marcotte & LaBarba, 1987;Marcotte & Morere, 1990). It is interesting in this connection that Genie, the linguistically and socially deprived teenager who heard little speech beyond 20 months, developed a clear right-hemisphere dominance for language, although her manual activity fell predominantly under the control of the opposite (left) hemisphere (Fromkin, Krashen, Curtiss, Rigler, & Rigler, 1974).…”

Section: Role Of Experiencementioning

confidence: 99%

A Theory of Neurolinguistic Development

1997

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The effects of linguistic experience on cerebral lateralization for speech production in normal hearing and deaf adolescents

Cited by 14 publications

References 33 publications

Nonverbal Cognition in Deaf Children Following Cochlear Implantation: Motor Sequencing Disturbances Mediate Language Delays

Nonverbal Cognition in Deaf Children Following Cochlear Implantation: Motor Sequencing Disturbances Mediate Language Delays

Non‐verbal development of children with deafness with and without cochlear implants

A Theory of Neurolinguistic Development

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