PINPOINT SOURCE LOCALIZATION FOR OCULAR NONSELECTIVE ATTENTION WITH COMBINATION OF ERP AND fNIRI MEASUREMENTS  

作　　者：TING LI LI LI PENG DU QINGMING LUO HUI GONG 

机构地区：[1]Britton Chance Center for Biomedical Photonics National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074,China

出　　处：《Journal of Innovative Optical Health Sciences》2008年第2期195-206,共12页创新光学健康科学杂志（英文）

基　　金：supported by the National Nature Science Foundation of China(grant No.30070261,60025514).

摘　　要：Compared with event-related potential(ERP)which is widely used in psychology research,functional near-infrared imaging(fNIRI)is a new technique providing hemodynamic information related to brain activity,except for electrophysiological signals.Here,we use both these techniques to study ocular attention.We conducted a series of experiments with a classic paradigm of ocular nonselective attention,and monitored responses with fNIRI and ERP respectively.The results showed that fNIRI measured brain activations in the left prefrontal lobe,while ERPs showed activation in frontal lobe.More importantly,only with the combination measurements of fNIRI and ERP,we were then able to find the pinpoint source of ocular nonselective attention,which is in the left and upper corner in Brodmann area 10.These results demonstrated that fNIRI is a reliable technique in psychology,and the combination of fNIRI and ERP can be promising to reveal more information in the research of brain mechanism.

关 键 词：Functional near-infrared imaging(fNIRI) event-related potential(ERP) ocular nonselective attention HEMOGLOBIN 

分 类 号：F27[经济管理—企业管理]