Visual signal detection measured by event-related potentials

被引：9

作者：

Hunter, M ^{[1
]}

Turner, A ^{[1
]}

Fulham, WR ^{[1
]}

机构：

[1] Univ Newcastle, Dept Psychol, Human Brain Res Lab, Callaghan, NSW 2308, Australia

来源：

BRAIN AND COGNITION | 2001年 / 46卷 / 03期

关键词：

signal detection; event-related potentials; ERP;

D O I：

10.1006/brcg.2001.1290

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Signal Detection tasks typically involve within-subject signal changes. Such a procedure does not lend itself to event-related potential (ERP) experiments where the need for averaging necessitates the maintenance of consistent stimulus parameters. In the present ERP study we adopt a novel approach to thresholding that allows within-subject signal manipulation. The Signal Detection task required the identification of letter targets, formed from dots. in a random dot field. ERP waveforms were segmented into three windows corresponding to NI, N2, and P300 components, Analysis shows that ERP variations are dependent on both task demands and response characteristics for N1, N2, and P300 components. (C) 2001 Academic Press.

引用

页码：342 / 356

页数：15

共 32 条

[1] PREDICTING SIMILARITY AND CATEGORIZATION FROM IDENTIFICATION [J].