Johnstone S J, Barry R J, Anderson J W, Coyle S F
Department of Psychology, University of Wollongong, Australia.
Int J Psychophysiol. 1996 Dec;24(3):223-38. doi: 10.1016/s0167-8760(96)00065-7.
Previous studies of auditory event-related potentials (ERPs) to an oddball task in children and adolescents focus on responses to target stimuli and provide little detail of age-related changes to standard stimuli. In this study, age-related changes in behavioural responding and ERP component morphology, amplitude and latency to standard and target stimuli were examined. Auditory ERPs to an oddball task were recorded from the midline sites (Fz, Cz and Pz) of 50 subjects aged 8 to 17 years 11 months. Behavioural results indicate a decrease in reaction time and errors of commission with age. To standard tones, N2 amplitude and N1 latency showed a linear decrease with age while an increase with age was found for P2 amplitude. For target tones, N1 and N2 amplitude and N1, N2 and P3 latency showed a linear decrease with age and P2 and P3 amplitude showed a linear increase with age. Age-related changes in the morphology of the ERP elicited by standard tones (especially the N2 and P2 components), as well as concurrent morphological changes in standard and target tones, are discussed.
以往关于儿童和青少年对Oddball任务的听觉事件相关电位（ERP）的研究主要关注对目标刺激的反应，而对标准刺激的年龄相关变化细节描述较少。在本研究中，我们考察了行为反应以及ERP成分的形态、幅度和潜伏期在对标准刺激和目标刺激时的年龄相关变化。对50名年龄在8岁至17岁11个月的受试者，从头皮中线部位（Fz、Cz和Pz）记录了Oddball任务的听觉ERP。行为学结果表明，反应时间和错误率随年龄增长而降低。对于标准音调，N2波幅和N1潜伏期随年龄呈线性下降，而P2波幅随年龄增加。对于目标音调，N1和N2波幅以及N1、N2和P3潜伏期随年龄呈线性下降，P2和P3波幅随年龄呈线性增加。本文还讨论了标准音调诱发的ERP形态的年龄相关变化（特别是N2和P2成分），以及标准音调和目标音调同时出现的形态变化。
