Age-related grey matter volume correlates of response inhibition and shifting in attention-deficit hyperactivity disorder.

Background: Children with attention-deficit hyperactivity disorder (ADHD) have difficulties with executive function and impulse control which may improve with age.

Aims: To map the brain correlates of executive function in ADHD and determine age-related changes in reaction times and brain volumes.

Method: Attention-deficit hyperactivity disorder and control groups were compared on the change task measures of response inhibition (stop signal reaction time, SSRT) and shifting (change response reaction time, CRRT).

Prevalence of DSM-IV disorders in Chinese adolescents and the effects of an impairment criterion: a pilot community study in Hong Kong.

Purpose: To provide preliminary prevalence estimates of common DSM-IV (Diagnostic and Statistical Manual of Mental Disorders-4th Edition) disorders in a sample of Hong Kong Chinese adolescents.

Methods: 541 Chinese adolescents were recruited from Grades 7, 8 and 9 of 28 mainstream high schools in Hong Kong (mean age=13.8 years; SD=1.

The test-retest reliability and screening efficiency of DISC Predictive Scales-version 4.32 (DPS-4.32) with Chinese children/youths.

Introduction: The DISC Predictive Scales-4.32 (DPS-4.32) were short-forms of the Diagnostic Interview Schedule for Children-IV (DISC-IV).

Test-retest reliability of the Chinese version of the Diagnostic Interview Schedule for Children-Version 4 (DISC-IV).

Background: Despite the huge youth population, there is a lack of psychiatric diagnostic instruments with reported psychometric properties in Chinese. This study reports the development of the Chinese version of DISC-IV and examines its test-retest reliability.

Method: Seventy-eight parents and 79 youths (mean age 13.