Fast and slow reaction time changes reflected in ERP brain function

被引：18
作者：
Bahramali, H [1 ]
Gordon, E
Li, WM
Rennie, C
Wright, J
机构：
[1] Westmead Hosp, Dept Psychol Med, Cognit Neurosci Unit, Westmead, NSW 2145, Australia
[2] Univ Sydney, Sydney, NSW 2006, Australia
[3] Westmead Hosp, Dept Phys Med, Westmead, NSW 2145, Australia
[4] Mental Hlth Res Inst Victoria, Brain Dynam Lab, Melbourne, Vic, Australia
来源：
INTERNATIONAL JOURNAL OF NEUROSCIENCE | 1998年 / 93卷 / 1-2期
关键词：
auditory ERP; automatic and controlled processing; fast and slow reaction time; N200; P300;
D O I：
10.3109/00207459808986414
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
A number of studies have examined the average late component Event Related Potential (ERP) and Reaction Time (RT) in response to multiple target stimuli (across-trial averages). This study demonstrates within-trial differences in ERP brain function associated with relatively fast and slow RTs in 50 normal subjects. A conventional auditory oddball paradigm (with a 1 ISI) a as employed. Increased ERP N100 and N200 amplitude (and decreased P200 amplitude), as well as earlier P200, N200 and P300 latency were found in the fast compared with the slow ERP subaverages. These results show the potential to elucidate temporal and spatial dynamics of brain function associated with changes in performance, in conventional "cognitive" paradigms applicable to both health and disease states.
引用
收藏
页码：75 / 85
页数：11
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