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Spatial-Simultaneous and Spatial-Sequential Working Memory in Individuals with Down Syndrome: The Effect of Configuration
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Carretti, Barbara; Lanfranchi, Silvia; Mammarella, Irene C. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2013
Earlier research showed that visuospatial working memory (VSWM) is better preserved in Down syndrome (DS) than verbal WM. Some differences emerged, however, when VSWM performance was broken down into its various components, and more recent studies revealed that the spatial-simultaneous component of VSWM is more impaired than the spatial-sequential…
Descriptors: Down Syndrome, Short Term Memory, Spatial Ability, Cognitive Ability
Motor Imagery Ability in Children with Congenital Hemiplegia: Effect of Lesion Side and Functional Level
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Williams, Jacqueline; Reid, Susan M.; Reddihough, Dinah S.; Anderson, Vicki – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
In addition to motor execution problems, children with hemiplegia have motor planning deficits, which may stem from poor motor imagery ability. This study aimed to provide a greater understanding of motor imagery ability in children with hemiplegia using the hand rotation task. Three groups of children, aged 8-12 years, participated: right…
Descriptors: Children, Psychomotor Skills, Neurological Impairments, Congenital Impairments
Relationship between Reaction Time, Fine Motor Control, and Visual-Spatial Perception on Vigilance and Visual-Motor Tasks in 22q11.2 Deletion Syndrome
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Howley, Sarah A.; Prasad, Sarah E.; Pender, Niall P.; Murphy, Kieran C. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2012
22q11.2 Deletion Syndrome (22q11DS) is a common microdeletion disorder associated with mild to moderate intellectual disability and specific neurocognitive deficits, particularly in visual-motor and attentional abilities. Currently there is evidence that the visual-motor profile of 22q11DS is not entirely mediated by intellectual disability and…
Descriptors: Comparative Analysis, Control Groups, Reaction Time, Mental Retardation
Explorative Function in Williams Syndrome Analyzed through a Large-Scale Task with Multiple Rewards
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Foti, F.; Petrosini, L.; Cutuli, D.; Menghini, D.; Chiarotti, F.; Vicari, S.; Mandolesi, L. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
This study aimed to evaluate spatial function in subjects with Williams syndrome (WS) by using a large-scale task with multiple rewards and comparing the spatial abilities of WS subjects with those of mental age-matched control children. In the present spatial task, WS participants had to explore an open space to search nine rewards placed in…
Descriptors: Measures (Individuals), Spatial Ability, Rewards, Genetic Disorders
Cerebral Visual Impairment: Which Perceptive Visual Dysfunctions Can Be Expected in Children with Brain Damage? A Systematic Review
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Boot, F. H.; Pel, J. J. M.; van der Steen, J.; Evenhuis, H. M. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
The current definition of Cerebral Visual Impairment (CVI) includes all visual dysfunctions caused by damage to, or malfunctioning of, the retrochiasmatic visual pathways in the absence of damage to the anterior visual pathways or any major ocular disease. CVI is diagnosed by exclusion and the existence of many different causes and symptoms make…
Descriptors: Partial Vision, Neurological Impairments, Objective Tests, Pathology
Electrophysiological Correlates of Semantic Processing in Williams Syndrome
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Pinheiro, Ana P.; Galdo-Alvarez, Santaigo; Sampaio, Adriana; Niznikiewicz, Margaret; Goncalves, Oscar F. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2010
Williams syndrome (WS), a genetic neurodevelopmental disorder due to microdeletion in chromosome 7, has been described as a syndrome with an intriguing socio-cognitive phenotype. Cognitively, the relative preservation of language and face processing abilities coexists with severe deficits in visual-spatial tasks, as well as in tasks involving…
Descriptors: Sentences, Semantics, Language Processing, Spatial Ability
Do Children with Williams Syndrome Fail to Process Visual Configural Information?
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Deruelle, Christine; Rondan, Cecilie; Mancini, Josette; Livet, Marie-Odile – Research in Developmental Disabilities: A Multidisciplinary Journal, 2006
Configural visual abilities in thirteen children with Williams syndrome (WS) compared to 13 children matched on mental age and 13 children matched on chronological age. Configural abilities were tested through four tasks (1) Silhouette (2) Fragmented (3) Mooney and (4) overlapping figures. In the first three tasks, it was necessary to take into…
Descriptors: Children, Age Differences, Task Analysis, Visual Perception