机构：[1]Department of Rehabilitation，Xuanwu Hospital，Capital University of Medica1 Science，Beijing 100053，China康复医学科首都医科大学宣武医院[2]State Key Laboratory of Cognitive Neuroscience and Learning，Beijing Normal University，Beijing 100875，China[3]School of Psychology，Southwest University, Chong qing 400715．China[4]Key Laboratory of Menta1 Health，Institute of Psycholngy, Chinese Academy of Sciences，Beijing 100101，China[5]Department of Neurology，Affiliated Hospital of Qingdao University，Medical College，Qingdao 266003，China[6]Department of Neurology，Xuanwu Hospital，Capital University of Medical Science，Beijing 100053，China神经内科首都医科大学宣武医院[7]Institute of Linguistics, Xuzhou Norma1 University，Xuzhou 221116，China
The visual spatial attention mechanism in the brain was studied in 16 young subjects through the visual search paradigm of precue-target by the event-related potential (ERP) technique, with the attentive ranges cued by different scales of Chinese character and region cues. The results showed that the response time for Chinese character cues was much longer than that for region cues especially for small region cues. With the exterior interferences, the target stimuli recognition under region cues was much quicker than that under Chinese character cues. Compared with that under region cues, targets under Chinese character cues could lead to increase of the posterior P1, decrease of the N1 and increase of the P2. It should also be noted that the differences between region cues and Chinese character cues were affected by the interference types. Under exterior interferences, no significant difference was found between region cues and Chinese character cues; however, it was not the case under the interior interferences. Considering the difference between the exterior interferences and the interior interferences, we could conclude that with the increase of difficulty in target recognition there was obvious difference in the consumption of anterior frontal resources by target stimuli under the two kinds of cues.
基金：
National Natural Science Foundation of China (Grant Nos. 30540058, 30325026, 30500166), the Natural Science Found of Beijing(Grant No. 7052030), the Ministry of Education (Grant No. 106025)
and Chinese Academy of Sciences ( Grant No. KSCX2- SW-221)
第一作者机构：[1]Department of Rehabilitation，Xuanwu Hospital，Capital University of Medica1 Science，Beijing 100053，China
通讯作者：
通讯机构：[2]State Key Laboratory of Cognitive Neuroscience and Learning，Beijing Normal University，Beijing 100875，China[3]School of Psychology，Southwest University, Chong qing 400715．China[4]Key Laboratory of Menta1 Health，Institute of Psycholngy, Chinese Academy of Sciences，Beijing 100101，China
推荐引用方式(GB/T 7714)：
SONG Weiqun,LUO Yuejia,CHI Song,et al.The role of different cues in the brain mechanism on visual spatial attention[J].PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL.2006,16(10):1045-1050.doi:10.1080/10020070612330108.
APA：
SONG Weiqun,LUO Yuejia,CHI Song,JI Xunming,LING Feng...&SHI Jiannong.(2006).The role of different cues in the brain mechanism on visual spatial attention.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,16,(10)
MLA：
SONG Weiqun,et al."The role of different cues in the brain mechanism on visual spatial attention".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 16..10(2006):1045-1050
