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The Williams Syndrome Cognitive Profile
TLDR
A Williams Syndrome Cognitive Profile (WSCP) is outlined that operationalizes the cognitive characteristics of the syndrome using measures of absolute and relative performance on subtests of the Differential Abilities Scales (Elliot, 1990a). Expand
Prevalence of psychiatric disorders in 4 to 16‐year‐olds with Williams syndrome
TLDR
The prevalence of a range of DSM‐IV psychiatric disorders in a sample of 119 4–16‐year‐old children with Williams syndrome was assessed using a structured diagnostic interview with their parents, finding a significant shift in Predominant Type of ADHD as a function of CA. Expand
Methodological Issues in Group-Matching Designs: α Levels for Control Variable Comparisons and Measurement Characteristics of Control and Target Variables
TLDR
This paper considers the appropriateness of the commonly made prediction that groups that are matched for a control variable but are not matched for chronological age should perform at equivalent levels on the target variable and describes the benefits of a method that focuses on characterizing a disorder on a case-by-case basis and then aggregating the cases. Expand
Attentional Characteristics of Infants and Toddlers With Williams Syndrome During Triadic Interactions
TLDR
It is argued that the unusual looking patterns evidenced by infants and toddlers with WS presage the unusual temperament and personality of older individuals with WS, and the possibility of a genetic basis for these behaviors is addressed. Expand
Williams syndrome: cognition, personality, and adaptive behavior.
TLDR
The adaptive behavior profile for Williams syndrome involves clear strength in socialization skills (especially interpersonal skills related to initiating social interaction), strength in communication, and clear weakness in daily living skills and motor skills, relative to overall level of adaptive behavior functioning. Expand
Distinctive Personality Characteristics of 8-, 9-, and 10-Year-Olds With Williams Syndrome
TLDR
The personality profiles emerging from the CBQ and MPQ provide a crucial step toward investigations of genotype/phenotype relations. Expand
Socio-Communicative Deficits in Young Children with Williams Syndrome: Performance on the Autism Diagnostic Observation Schedule
TLDR
Difficulties with pointing, gestures, giving, showing, and eye contact were present for more than half of the participants, with many also showing difficulties with initiation and response to joint attention and with integration of gaze with other behaviors. Expand
7q11.23 Duplication syndrome: Physical characteristics and natural history
TLDR
The physical characteristics, medical complications, and natural history of classic 7q11.23 duplication syndrome, reciprocal duplication of the region deleted in Williams syndrome, are described and initial recommendations for medical evaluation and surveillance of individuals who have Dup7 are offered. Expand
Overlap With the Autism Spectrum in Young Children With Williams Syndrome
TLDR
The results of this investigation suggest that sociocommunicative difficulties are present for many children with Williams syndrome and overlap with the autism spectrum, and care should be taken to avoid diagnostic overshadowing in young children with WS. Expand
Honing in on the Social Phenotype in Williams Syndrome Using Multiple Measures and Multiple Raters
TLDR
The behavioral phenotype of Williams syndrome is characterized by difficulties with establishment and maintenance of friendships despite high levels of interest in social interaction, and two commonly-used measures assessing aspects of social functioning are used. Expand
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