Laterality in Persons with Intellectual Disability. I—Do Patients with Trisomy 21 and Williams–Beuren Syndrome Differ from Typically Developing Persons?

Carlier, Michèle; Stefanini, Silvia; Deruelle, Christine; Volterra, Virginia; Doyen, Anne Lise; Lamard, C; Portzamparc, Véronique de; Vicari, Stefano; Fisch, Gene S.

doi:10.1007/s10519-006-9048-9

Cited by 30 publications

(40 citation statements)

References 63 publications

(63 reference statements)

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“…As in earlier studies (e.g., Cornish et al, 1997;Carlier et al, 2006), the percentage of mixed-handers was higher among children with DS. Furthermore, card-reaching behavior in children with DS was characterized by weaker hand preference, fewer reaches across the midline into contralateral space to the most extreme positions, and children with DS were less consistent in the hand used to pick up cards from any particular position.…”

Section: Discussionsupporting

confidence: 82%

Weak hand preference in children with down syndrome is associated with language deficits

Groen

Yasin

Laws³

et al. 2008

Developmental Psychobiology

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This study explores associations between language ability and hand preference in children with Down syndrome. Compared to typically developing children of the same age, children with Down syndrome showed weaker hand preference, were less consistent in the hand they used and also less willing to reach to extreme positions in contralateral space. Within the group of children with Down syndrome, those who showed a stronger or more consistent hand preference had better language and memory skills. This association could not be explained by differences in non-verbal cognitive ability or hearing loss. These findings are discussed within the theory of neurolinguistic development proposed by Locke [Locke (1997). Brain & Language, 58, 265-326].

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Section: Discussionsupporting

confidence: 82%

Weak hand preference in children with down syndrome is associated with language deficits

Groen

Yasin

Laws³

et al. 2008

Developmental Psychobiology

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“…Batheja and McManus (1985), and Pipe (1988) reported higher incidence of left-or mixed-handedness in persons with T21. While this has not always been confirmed by more recent studies (see Carlier et al, 2006b for a review), it does tally with our findings. WBS is a rare genetic syndrome (incidence ranging from 1 in 7,500 to 1 in 25,000 live births) resulting from a hemizygous deletion of genes on the long arm of chromosome 7 at 7q11.23.…”

Section: Introductioncontrasting

confidence: 54%

“…Previous observations had been collected by three teams based in France, Italy, and the USA (Carlier et al, 2006b The comparison group of typically developing persons was comprised of French children and adults assessed using the same procedures (see below). The comparison group had 184 individuals (101 males and 83 females) in the same age range as the two groups with genetic disorders (range 7-33 years, mean age: 11.57 AE .44).…”

Section: Methods Participantsmentioning

confidence: 99%

“…The comparison group had 184 individuals (101 males and 83 females) in the same age range as the two groups with genetic disorders (range 7-33 years, mean age: 11.57 AE .44). In the previous study, only 24 typically developing children aged 8 and 9 were assessed with the full protocol used for the groups with genetic disorders, thus making certain comparisons impossible (see Carlier et al, 2006b). These 24 children were included in the new group of typically developing individuals.…”

Section: Methods Participantsmentioning

confidence: 99%

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Laterality in persons with intellectual disability II. Hand, foot, ear, and eye laterality in persons with Trisomy 21 and Williams‐Beuren syndrome

Gérard-Desplanches¹,

Deruelle²,

Stefanini³

et al. 2006

Developmental Psychobiology

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Laterality (hand, foot, ear, and eye) was assessed in participants with Trisomy 21 (62) and Williams-Beuren syndrome (WBS) (39). Handedness was also assessed in a card reaching task. The comparison group included 184 typically developing persons. Two independent age sub-groups were formed: 7 to 10 years old and 11 to 34 years old. We confirmed previous data: individuals with T21 were more frequently left- or mixed-handed than typically developing persons; individuals with WBS had intermediate scores. The two groups with genetic disorders had less right foot preference. Manual and foot inconsistencies characterized both groups with genetic disorders. Cross hand-foot preference was lower in the typically developing group. Differences in IQ levels did not correlate with differences in laterality scores. Overall laterality profiles were not the same in the two groups with genetic disorders: the greatest differences were observed between typically developing persons and persons with Trisomy 21.

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“…No entanto, em lactentes com síndrome de Down há um atraso no processo de desenvolvimento do chute e, consequentemente, um atraso na aquisição de marcos motores importantes, tais como o engatinhar e a marcha 9 , devido às alterações neuromotoras, como hipotonia muscular, hiperextensibilidade articular, distúrbio no mecanismo de controle postural e equilíbrio 10,11 . Além das alterações neuromotoras, as crianças com Síndrome de Down também apresentam alterações na organização cerebral 12 , o que pode levar ao desenvolvimento de uma lateralidade à esquerda, inconsistente e/ou cruzada 13,14 . Contudo, tanto em lactentes típicos quanto com sín-drome de Down, todas essas mudanças que ocorrem no padrão de movimento do chute e no desenvolvimento da preferência podal sofrem influência de elementos do organismo e da especificidade da tarefa 15,8 , em virtude da interação de fatores intrínsecos (restrições orgânicas) e extrínsecos (restrições ambientais) 15,16 .…”

Section: Introductionunclassified

Preferência podal em lactentes com síndrome de Down: fatores extrínsecos e intrínsecos

Santos¹,

Bueno²,

Tudella

et al. 2012

Fisioter. Pesqui.

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RESUMO | Durante o processo de aquisição do chute em lactentes, a preferência podal pode ser influenciada de forma diferente pelos fatores extrínsecos e intrínsecos. O objetivo foi comparar a preferência podal e verificar a influência do peso adicional e do Reflexo Tônico Cervical Assimétrico (RTCA) na preferência podal entre lactentes com síndrome de Down e típicos. Participaram do estudo cinco lactentes com síndrome de Down e cinco típicos aos três e quatro meses de idade. O experimento foi subdividido em quatro condições experimentais: Treinamento, Linha de Base, Peso e Pós-Peso. Os lactentes com síndrome de Down apresentaram preferência à esquerda ou indefinida e os típicos, preferência à direita. O RTCA influenciou na preferência podal em ambos os grupos, indicando que o lado de rotação da cabeça orientou o chute do mesmo lado. Nos lactentes com síndrome de Down a correlação entre RTCA e chutes foi positiva, sendo forte aos três meses e moderada aos quatro meses. Para os lactentes típicos foi observada correlação positiva fraca aos três meses, e aos quatro meses a correlação não foi estatisticamente significativa. Lactentes com síndrome de Down apresentam preferência podal contrária aos lactentes típicos. O RTCA exerce influência na preferência podal por um período mais longo em lactentes com síndrome de Down em comparação aos lactentes típicos.Descritores | desenvolvimento infantil; reflexo; lateralidade funcional.ABSTRACT | During the acquisition process of the kick in infants, foot preference may be influenced differently by extrinsic and intrinsic factors. The aim was to compare the foot preference and find the influence of additional weight and Asymmetrical Neck Tonic Reflex (ANTR) on the foot preference of infants with Down syndrome and typical ones. Five infants with Down syndrome and five typical infants at three and four months of age participated of the sudy. The experiment was divided into four experimental conditions: Training, Baseline, Weight and After Weight. Infants with Down syndrome showed preference to the left or indefinite, the typical infants showed preference to the right. ANTR influenced the foot preference in both groups, indicanting that the rotation of head side oriented the kicking for the same side. For infants with Down syndrome the correlation between ANTR and kicking was positive, with a strong positive correlation at three months of age and a moderate positive correlation at four months of age observed. For typical infants it was observed weak positive correlation at three months of age and at four months of age, the correlation was not significant. Infants with Down syndrome have foot preference contrary to typical infants. ATNR influences the foot preference for a longer period in infants with Down syndrome compared to typical infants.

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Laterality in Persons with Intellectual Disability. I—Do Patients with Trisomy 21 and Williams–Beuren Syndrome Differ from Typically Developing Persons?

Cited by 30 publications

References 63 publications

Weak hand preference in children with down syndrome is associated with language deficits

Weak hand preference in children with down syndrome is associated with language deficits

Laterality in persons with intellectual disability II. Hand, foot, ear, and eye laterality in persons with Trisomy 21 and Williams‐Beuren syndrome

Preferência podal em lactentes com síndrome de Down: fatores extrínsecos e intrínsecos

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