Related Experiment Video
Updated: Jul 25, 2026

Using Brain Activation (nir-HEG/Q-EEG) and Execution Measures (CPTs) in a ADHD Assessment Protocol
Published on: April 1, 2018
Stimulant medication effects in a summer treatment program among young children with attention-deficit/hyperactivity
Anil Chacko1, William E Pelham, Elizabeth M Gnagy
1Department of Psychology, SUNY at Buffalo, NY 14214, USA.
Insights
Stimulant medication effectively treats attention-deficit/hyperactivity disorder (ADHD) in young children. Assessing multiple functioning domains is crucial for determining the optimal methylphenidate dose for ADHD symptom management.
Area of Science:
- Pediatric Psychology
- Child Psychiatry
- Neurodevelopmental Disorders
Background:
- Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in children.
- Early intervention is critical for managing ADHD symptoms and improving long-term outcomes.
- Stimulant medications are frequently prescribed for ADHD, but their effectiveness in very young children requires careful evaluation.
Purpose of the Study:
- To evaluate the efficacy of stimulant medication, specifically methylphenidate, in young children (5-6 years old) diagnosed with ADHD.
- To assess the impact of methylphenidate on various domains of functioning, including social behavior and academic performance.
- To determine if there is a dose-dependent effect of methylphenidate in this age group.
Main Methods:
- A randomized clinical trial involving 36 children aged 5-6 years with ADHD.
- Administration of two doses of methylphenidate (0.3 mg/kg and 0.6 mg/kg) and placebo.
- Assessment of social behaviors and academic performance as primary outcomes.
Main Results:
- Methylphenidate significantly improved all four social behaviors assessed.
- Academic functioning was enhanced in two out of three measured areas.
- Dose-dependent effects were observed for three of the seven outcome measures, with a substantial percentage of children showing minimal additional benefit from the higher dose.
Conclusions:
- Stimulant medication, particularly methylphenidate, is an effective treatment for young children with ADHD.
- Comprehensive assessment across multiple functional domains is necessary to optimize methylphenidate dosage for individual children.
- Further research may be warranted to explore nuanced dose-response relationships in early childhood ADHD treatment.
Objective:
This study examined the effectiveness of stimulant medication on multiple domains of functioning in 36 young (5 to 6 years old) children diagnosed with attention-deficit/hyperactivity disorder (ADHD).
Method:
Five- and 6-year-old children attending a summer treatment program between 1987 and 1997 underwent a randomized clinical assessment of the effect of two doses of methylphenidate (0.3 mg/kg versus 0.6 mg/kg) and placebo on social behavior and academic performance.
Results:
Methylphenidate had an effect on all four social behaviors and improved two of the three areas of academic functioning. Dose effects were present for three of the seven dependent measures. Individual analyses indicated a therapeutic response rate between 39% and 100% across dependent measures. Furthermore, individual analyses of response indicated that across several important dependent measures, 39% to 98% of children showed little incremental improvement with the higher dose compared with the lower dose of stimulant medication.
Conclusions:
Stimulant medication is an effective treatment for young children diagnosed with ADHD; however, multiple domains of functioning must be assessed to determine the most effective dose for young children with ADHD.
More Related Videos
05:48The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
Published on: June 12, 2020
10:02Event Related Potentials (ERPs) and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder (ADHD)
Published on: March 12, 2020
Related Concept Videos
Drugs Acting on Autonomic Ganglia: Stimulants
Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
Stimulants
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.