University of Massachusetts Medical School Faculty Publications

Title

Areas of the brain modulated by single-dose methylphenidate treatment in youth with ADHD during task-based fMRI: a systematic review

UMMS Affiliation

Department of Psychiatry; Department of Quantitative Health Sciences; Intellectual and Developmental Disabilities Research Center

Date

5-11-2013

Document Type

Article

Disciplines

Mental Disorders | Neurology | Neuroscience and Neurobiology | Pediatrics | Psychiatry | Psychiatry and Psychology

Abstract

OBJECTIVE: Attention-deficit/hyperactivity disorder (ADHD) is a psychiatric disorder affecting 5% of children. Methylphenidate (MPH) is a common medication for ADHD. Studies examining MPH's effect on pediatric ADHD patients' brain function using functional magnetic resonance imaging (fMRI) have not been compiled. The goals of this systematic review were to determine (1) which areas of the brain in pediatric ADHD patients are modulated by a single dose of MPH, (2) whether areas modulated by MPH differ by task type performed during fMRI data acquisition, and (3) whether changes in brain activation due to MPH relate to clinical improvements in ADHD-related symptoms.

METHODS: We searched the electronic databases PubMed and PsycINFO (1967-2011) using the following terms: ADHD AND (methylphenidate OR MPH OR ritalin) AND (neuroimaging OR MRI OR fMRI OR BOLD OR event related), and identified 200 abstracts, 9 of which were reviewed based on predefined criteria.

RESULTS: In ADHD patients the middle and inferior frontal gyri, basal ganglia, and cerebellum were most often affected by MPH. The middle and inferior frontal gyri were frequently affected by MPH during inhibitory control tasks. Correlation between brain regions and clinical improvement was not possible due to the lack of symptom improvement measures within the included studies.

CONCLUSIONS: Throughout nine task-based fMRI studies investigating MPH's effect on the brains of pediatric patients with ADHD, MPH resulted in increased activation within frontal lobes, basal ganglia, and cerebellum. In most cases, this increase "normalized" activation of at least some brain areas to that seen in typically developing children.

Comments

Citation: Czerniak SM, Sikoglu EM, King JA, Kennedy DN, Mick E, Frazier J, Moore CM. Areas of the brain modulated by single-dose methylphenidate treatment in youth with ADHD during task-based fMRI: a systematic review. Harv Rev Psychiatry. 2013 May-Jun;21(3):151-62. doi: 10.1097/HRP.0b013e318293749e. Review. PubMed PMID: 23660970; PubMed Central PMCID: PMC4103657. Link to article on publisher's site

Related Resources

Link to Article in PubMed

Keywords

ADHD, fMRI, methylphenidate, neuroimaging, pediatric

PubMed ID

23660970