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Time Perception Deficits and Attention-Deficit/Hyperactivity Disorder

This study has been completed.
Information provided by (Responsible Party):
National Taiwan University Hospital Identifier:
First received: June 23, 2007
Last updated: November 12, 2012
Last verified: September 2008

Background: Literature has documented that children with attention-deficit/ hyperactivity disorder (ADHD) have difficulties in time management by manifesting with difficulties making plans, organizing tasks and activities, and awaiting their turns. However, the studies regarding time perception have been few as compared to those of neuropsychological measures and there is no information about this topic in Chinese population. In view of this, we will conduct a study to investigate the clinical and treatment aspects of time perception among children and adolescent with ADHD.

Specific Aims:

  1. to examine the developmental and gender effect on the performance in time perception;
  2. to explore the deficit in time estimation, time discrimination, and time reproduction in children and adolescents with ADHD as compared to normal controls;
  3. to identify the association between ADHD symptoms and performance in time perception tasks; and
  4. to investigate the efficacy of MPH on the time perception measures among children and adolescents with ADHD; Subjects and Methods: This protocol consists of two studies. First, we will recruit 100 patients with DSM-IV ADHD, aged 9 to 16 years, and 100 school controls. They and their parents will receive K-SADS-E interviews. All of them will have complete assessments of time estimation, time discrimination, and time reproduction. Their parents also report on SNAP-IV and CPRS-R:S. The 2nd assessments will be performed 3 months later after the subjects received treatment at outpatients.

Anticipated Results: We anticipated that the ADHD group will have poorer time perception, particularly in difficult tasks, and the impairment will be reduced after treatment with medication

Attention-deficit/Hyperactivity Disorder

Study Type: Observational
Study Design: Observational Model: Case Control
Official Title: Time Perception Deficits and Behaviors of Children and Adolescents With Attention-Deficit/Hyperactivity Disorder

Resource links provided by NLM:

Further study details as provided by National Taiwan University Hospital:

Enrollment: 258
Study Start Date: May 2006
Study Completion Date: June 2007
  Show Detailed Description


Ages Eligible for Study:   9 Years to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Children with and without ADHD

Inclusion Criteria:

  • Case group:

    • DSM-IV ADHD,
    • aged 9 to 16 years,
    • IQ > 80,
    • Subjects and Parents consent to the study.
  • Control:

    • No ADHD,
    • aged 9 to 16 years,
    • IQ > 80,
    • Subjects and Parents consent to the study.

Exclusion Criteria:

  • A history of brain injury or epilepsy,
  • visual/auditory deficit or were diagnosed as having motor disorder,
  • obsessive-compulsive disorder,
  • mental retardation, and depression.
  • In order to recruit a population of pure ADHD (without other psychiatric comorbidities), children who are comorbid with oppositional defiant disorder (ODD) or conduct disorder (CD) were excluded, though the concurrence of ODD/CD and ADHD
  Contacts and Locations
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Please refer to this study by its identifier: NCT00491647

National Taiwan Univeristy Hospital
Taipei, Taiwan, 10002
Sponsors and Collaborators
National Taiwan University Hospital
Principal Investigator: Susan Shur-Fen Gau, MD, PhD National Taiwan University Hospital & College of Medicine
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: National Taiwan University Hospital Identifier: NCT00491647     History of Changes
Other Study ID Numbers: 9561703011
Study First Received: June 23, 2007
Last Updated: November 12, 2012

Keywords provided by National Taiwan University Hospital:
ADHD, time perception, treatments

Additional relevant MeSH terms:
Attention Deficit Disorder with Hyperactivity
Pathologic Processes
Attention Deficit and Disruptive Behavior Disorders
Neurodevelopmental Disorders
Mental Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on August 18, 2017