The influence of methylphenidate on auditory brainstem response patients with attention deficit hyperactivity
Emma Claesdotter-Knutsson1, Johan Källstrand2, Katalin Niklasson3
1Psychiatry, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Lund, Sweden.
Insights
Methylphenidate (MPH) treatment improved auditory brainstem response (ABR) activity in children with attention-deficit hyperactivity disorder (ADHD), particularly in the right thalamic region. This suggests ABR may reflect treatment effects in ADHD.
Area of Science:
- Neuroscience
- Pediatric Neurology
- Psychopharmacology
Background:
- Attention-deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in children.
- Auditory Brainstem Response (ABR) measures neural activity in the auditory pathway and is often affected in ADHD.
- Methylphenidate (MPH) is a common first-line medication for ADHD.
Purpose of the Study:
- To investigate the impact of Methylphenidate (MPH) on Auditory Brainstem Response (ABR) amplitude alterations in children with ADHD.
- To explore how MPH treatment influences specific ABR wave activities in ADHD patients.
Main Methods:
- Recruited 32 drug-naïve children and adolescents with ADHD and 35 healthy controls.
- Recorded ABR in ADHD patients before and during steady-state Methylphenidate (MPH) treatment.
- Compared ABR findings between medicated and non-medicated ADHD groups and with controls.
Main Results:
- Medicated ADHD patients showed increased ABR activity in Wave VI on the right side.
- A significant increase in ABR activity was observed in the thalamic region of medicated ADHD patients compared to non-medicated ones.
Conclusions:
- Methylphenidate (MPH) treatment alters Auditory Brainstem Response (ABR) patterns in ADHD patients.
- Specific ABR peaks correlate with psychiatric symptoms and may reflect treatment effects in ADHD.
- Findings support the use of ABR in understanding the neurophysiological impact of ADHD treatment.
Background:
Attention-deficit hyperactivity disorder (ADHD), characterized by periods of inattention, overactivity, and impulsiveness, is the most prevalent neurodevelopmental disorder among children. Auditory Brainstem Response (ABR) is a technique in which clickshaped sounds elicit potentials that are recorded from electrodes placed on a patient's skull. Extant research indicates that ABR is frequently affected in neurodevelopmental disorders such as ADHD. Methylphenidate (MPH), a psychostimulant, is often prescribed to children with ADHD as a first-line pharmacological treatment. The aim of this study was to explore the effects of Methylphenidate treatment on previously observed amplitude alterations in the ABR of patients with ADHD.
Methods:
We recruited 32 drug-naïve children and adolescents (19 males and 13 females; mean age 11 years) diagnosed with ADHD and 35 health controls (15 males and 20 females; mean age 12 years). The ADHD group was treated with Methylphenidate, and ABR was recorded before treatment and at a steady state of medical treatment.
Results:
Medicated ADHD patients exhibited increased activity in the right side ABR in Wave VI.
Conclusions:
A significant increase in activity was found in a part of the ABR thought to correspond to the thalamic area in medicated ADHD patients compared to the same area of non-medicated ADHD patients. The results add to the growing body of research suggesting that specific ABR peaks correlate to certain psychiatric symptoms.
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