Laterality Preference and Cognition: Cross-Syndrome Comparison of Patients with Trisomy 21 (Down), del7q11.23 (Williams-Beuren) and del22q11.2 (DiGeorge or Velo-Cardio-Facial) Syndromes - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Behavior Genetics Année : 2011

Laterality Preference and Cognition: Cross-Syndrome Comparison of Patients with Trisomy 21 (Down), del7q11.23 (Williams-Beuren) and del22q11.2 (DiGeorge or Velo-Cardio-Facial) Syndromes

Michèle Carlier
Aude Gerard Desplanches
  • Fonction : Auteur
Silvia Stefanini
  • Fonction : Auteur
Stefano Vicari
Virginia Volterra
  • Fonction : Auteur
Gene Fisch
  • Fonction : Auteur
Anne-Lise Doyen
Anne Swillen
  • Fonction : Auteur

Résumé

We report on a cross-syndrome comparison of hand, foot, eye and ear laterality in three groups of individuals with different genetic disorders (trisomy 21, del7q11.23, and del22q11.2) to test the relationship between atypical laterality and intellectual disability. These groups were compared to a group of typically developing persons. Hand, foot, eye and ear laterality was assessed using item tasks, conducted twice, and Bishop's card-reaching test. Ordering of the mean IQ score for each of the three groups was as follows: trisomy 21 < del7q11.23 < del22q11.2. We observed the same ordering as for IQ, particularly in mixed handedness, degree of laterality, hand and foot consistency. The existence of a cognitive threshold, below which lateral preference is atypical, advocates for a causal link between cognition and laterality in those with low IQ although unknown other factors underlying both could determine this association.

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Psychologie

Dates et versions

hal-01440419 , version 1 (19-01-2017)

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Citer

Michèle Carlier, Aude Gerard Desplanches, Nicole Philip, Silvia Stefanini, Stefano Vicari, et al.. Laterality Preference and Cognition: Cross-Syndrome Comparison of Patients with Trisomy 21 (Down), del7q11.23 (Williams-Beuren) and del22q11.2 (DiGeorge or Velo-Cardio-Facial) Syndromes. Behavior Genetics, 2011, 41 (3, SI), pp.413-422. ⟨10.1007/s10519-011-9465-2⟩. ⟨hal-01440419⟩

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