Visual Evoked Potential in Attention Deficit/ Hyperactivity Disorder.

ABSTRACT

Objectives: Attention Deficit/Hyperactivity Disorder (AD/HD) is one of the childhood disorder characterized by lack of sustained attention, hyperactivity and impulsivity. Children with AD/HD have functional impairment occurring at multiple levels. Sensory neural processing of visual information can be one of the contributory factors. The present study was undertaken to examine the integrity and function of visual pathway by means of Visual Evoked Potential (VEP). Method: Twenty AD/HD children and twenty controls were taken for the study and Pattern reversal Visual Evoked Potential was recorded on computerized evoked potential recorder using 10-20 system of electrode placement. The statistical analysis for the comparison between controls and AD/HD children was done using unpaired Student’s t test. Results: The latencies of N75, P100 and N145 were increased but could not reach the level of significance. Conclusion: Our finding indicates that the sensory processing is not involved in children with AD/HD alone without any other disorders like Reading Disability, Learning disability etc.