Cognitive functioning in adults with Williams syndrome

Area of Science:

• Neurodevelopmental disorders
• Cognitive psychology
• Linguistics

Background:

• Williams syndrome (WS) is a genetic disorder associated with cognitive and linguistic specificities.
• Previous research has primarily focused on children with WS, leaving adult profiles less understood.

Purpose of the Study:

• To assess cognitive, linguistic, and academic functioning in a sample of adults with Williams syndrome.
• To compare adult WS profiles with existing data from children with WS.
• To investigate the consistency of the Williams syndrome cognitive and linguistic phenotype across the lifespan.

Main Methods:

• Cognitive, linguistic, and academic assessments were administered to 62 adults with Williams syndrome (mean age 26 years, mean IQ 61).
• Subtest scores were analyzed to determine cognitive profiles.
• Functioning levels in reading, spelling, arithmetic, and social adaptation were evaluated.

Main Results:

• Smaller differences between Verbal and Performance IQ, and receptive and expressive language skills were observed compared to children with WS.
• Subtest analysis revealed a cognitive profile highly similar to that found in children with WS.
• Academic skills (reading, spelling, arithmetic) and social adaptation remained at a low level, approximating a 6-8-year age equivalent.

Conclusions:

• The findings support a syndrome-specific pattern of cognitive, linguistic, and adaptive functioning in Williams syndrome that is consistent from childhood into adulthood.
• The study highlights the need for tailored educational and support strategies for individuals with WS throughout their lives.