Related Experiment Video
Updated: Jul 12, 2026
P50 Sensory Gating in Infants
Published on: December 26, 2013
Preliminary observations of binaural hearing in an attention-deficit pediatric population
1Audiology and Speech-Language Pathology, Brigham Young University.
Insights
Children with ADHD show differences in auditory processing, specifically in the thalmo-cortical pathways. This study used auditory evoked potentials to compare ADHD and control groups, finding significant variations in N40 wave responses.
Area of Science:
- Neuroscience
- Auditory Neuroscience
- Developmental Psychology
Background:
- Auditory evoked potentials (AEPs) assess the auditory pathway's function.
- Children with Attention-Deficit/Hyperactivity Disorder (ADHD) may exhibit atypical sensory processing.
- Understanding auditory processing in ADHD is crucial for targeted interventions.
Purpose of the Study:
- To investigate auditory processing differences between children with ADHD and neurotypical controls.
- To compare brainstem auditory evoked potentials (BAEPs) and middle latency auditory evoked potentials (MLAEPs) in both groups.
- To examine binaural interaction components in the auditory pathway of children with ADHD.
Main Methods:
- Recorded BAEPs and MLAEPs from 21 normal hearing children (8-13 years).
- Compared 8 children diagnosed with ADHD against 13 age-matched controls.
- Utilized monaural and binaural stimulus presentations, calculating the binaural interaction component and analyzing waves V, N20, P30, and N40.
Main Results:
- Significant differences observed between ADHD and control groups in N40 amplitudes (binaural and sum of monaural).
- The ADHD group showed altered percent binaural interaction at N40.
- These findings indicate potential dysfunction or immaturity in the auditory thalmo-cortical projections of children with ADHD.
Conclusions:
- Children with ADHD exhibit distinct patterns in auditory evoked potentials, particularly in later latency waves.
- The results suggest atypical development or function within the auditory thalmo-cortical pathways in ADHD.
- Further research into auditory processing deficits in ADHD may inform diagnostic and therapeutic strategies.
Abstract:
Brainstem auditory evoked potentials and middle latency auditory evoked potentials were recorded from 21 normal hearing children between 8 and 13 years of age. An age-matched control group of 13 children was used to compare the results of 8 children diagnosed with ADHD. One sample of 2000 averages was collected for right monaural, left monaural, and binaural stimulus presentation conditions. The binaural interaction component was then determined using the formula: [(right monaural+left monaural)--binaural]. Absolute latencies and amplitudes for waves V, N20, P30, and N40 were then compared using descriptive statistics, analysis of variance, and matched t-tests. Percent binaural interaction was also computed for both groups. Significant differences were noted between control and ADHD groups on measures of N40 amplitudes for binaural stimulation, N40 amplitude for the sum of the right and left monaural waveforms, and percent binaural interaction at N40. These results suggest a dysfunction or immaturity in the auditory activity of the thalmo-cortical projections.
