Trends in Intellectual Development in Down Syndrome

Trends in Intellectual Development, and Diverging Verbal and Non-verbal Abilities in the Down Syndrome Phenotype

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00954382

Enrollment

Registered

2009-08-07

Start date

2009-05-31

Completion date

2010-12-31

Last updated

2010-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Down Syndrome

Keywords

Down syndrome, IQ, mental age, neuropsychological function

Brief summary

Previous foreign studies revealed that the IQ in Down syndrome (DS) declines with age, but not any investigation of domestic data in Taiwan was available. Individuals with DS are characterized by limited verbal development, and in this article, authors look into the diverging verbal-nonverbal abilities in the DS phenotype.

Detailed description

The present study investigated this by analysis the test results of development /intelligence scales. To compare initial cross-sectional data with longitudinal follow-up, about 12 people with DS were included.

Interventions

None listed

Study design

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

3 Months to 40 Years

Healthy volunteers

Inclusion criteria

* Down syndrome with psychological test results

Exclusion criteria

* Comorbidity of severe Autism or visual/auditory impairment

Design outcomes

Primary

Measure	Time frame
IQ	2001-2010

Secondary

Measure	Time frame
mental age	2001-2010

Countries

Taiwan

Contacts

Primary ContactLih-Maan Chang, master

lmchang@ntu.edu.tw+886-2-23123456

Outcome results