Response inhibition and error processing in children with Attention deficit and hyper-activity disorder using ERP during continuous performance test

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This study focused on the psychophysiological processes of response inhibition and error processing in children with attention deficit and hyper-activity disorder (AD/HD). The NOGO potential and the error-related negativity (ERN) were recorded during a continuous performance task in 17 AD/HD children, 8 normal children, and 13 adults. In both AD/HD and normal children, the NOGO potential had larger amplitudes and longer latencies than in adults, indicating that AD/HD may result from an immature regulation of behavior rather than from a deficiency in central inhibitory function. The NOGO potential also showed a linear shortening of latency with age, suggesting that the development of inhibitory function depends on maturation of the prefrontal lobe. The ERN in one AD/HD child with a high rate of false alarms showed a prolonged latency, suggesting a slower regulation of behavior. Another AD/HD child with a low target hit rate, exhibited a ERN delay after incorrect response. This last observation indicates that AD/HD of an inattention type may have problems with sustaining their attention during certain cognitive processes, such as error processing. (<I>Japanese Journal of Physiological Psychology and Psychophysiology</I>, 22 (1) : 43-55, 2004.)
Japanese Society for Physiological Psychology and Psychophysiologyの論文