Netley C, Taylor M J, Molan M
Department of Psychology, Lakehead University, Thunder Bay, Ontario, Canada.
Clin Genet. 1995 Mar;47(3):150-4. doi: 10.1111/j.1399-0004.1995.tb03948.x.
The event-related potentials (ERPs) of 18 extra X males (mean age 18.1 years) were recorded during the course of phonemic and orthographic discrimination tasks. The N2 and P3 latencies and amplitudes of subjects were examined in relation to their verbal and nonverbal intelligence test scores based on assessments at three ages: prior to puberty, during puberty and at sexual maturity. The results indicated that verbal abilities at most test occasions were significantly related to P3 latencies. Nonverbal abilities were largely uncorrelated with ERPs. The findings suggest that the verbal deficits of extra X males are the result of unlateralized individual differences in neural cognitive processing.
在音素和正字法辨别任务过程中，记录了18名X染色体额外的男性（平均年龄18.1岁）的事件相关电位（ERP）。根据三个年龄段（青春期前、青春期和性成熟时）的评估，检查了受试者的N2和P3潜伏期及波幅与其言语和非言语智力测试分数的关系。结果表明，在大多数测试场合，言语能力与P3潜伏期显著相关。非言语能力与ERP基本不相关。研究结果表明，X染色体额外的男性的言语缺陷是神经认知加工中单侧个体差异的结果。
