CAJ | 학술논문

目的探讨额顶网络损害患者视空间注意网络的解剖和功能定位及其相互影响.方法采用注意网络测试任务,对13例局灶性额叶损害和12例顶叶损害患者进行网络效率测试,并与30例正常对照组的注意网络测试结果相比较.结果额顶网络损害患者不同提示和刺激类型的平均反应时间均明显比正常对照组慢(P＜0.05);警觉和定向网络效率及其比率也均明显受损(P＜0.01).额叶损害患者执行网络效率及其比率与正常对照组比较明显受损(P＜0.01),而顶叶损害患者没有受损,反而网络效率比率还增强(P＜0.01).结论额顶网络与警觉和定向网络功能有关,而执行控制网络主要与额叶活动有关,并且注意网络测试是研究视觉注意认知过程的有效任务和工具.
목적 탐토액정망락손해환자시공간주의망락적해부화공능정위급기상호영향.방법 채용주의망락측시임무,대13례국조성액협손해화12례정협손해환자진행망락효솔측시,병여30례정상대조조적주의망락측시결과상비교.결과 액정망락손해환자불동제시화자격류형적평균반응시간균명현비정상대조조만(P＜0.05);경각화정향망락효솔급기비솔야균명현수손(P＜0.01).액협손해환자집행망락효솔급기비솔여정상대조조비교명현수손(P＜0.01),이정협손해환자몰유수손,반이망락효솔비솔환증강(P＜0.01).결론 액정망락여경각화정향망락공능유관,이집행공제망락주요여액협활동유관,병차주의망락측시시연구시각주의인지과정적유효임무화공구.
Objective To probe deficits in visuospatial attention using an attention network test (ANT) in patients with frontoparietal network lesions. Methods The ANT was used to measure the alertness, orienting and executive control abilities of 25 patients with local brain lesions, including 13 with frontal and 12 with parietal damage. Their results were compared with those of health adults. Results During ANT tasks, the patients' responses were significantly slower on each cue and target condition than controls', and showed deficits in their alerting and orienting networks. The efficiency of executive control was impaired in patients with frontal lesions, but increased with parietal lesions. Conclusions These findings suggest that the frontoparietal network is involved in alerting and orienting, but the executive control function may be selectively associated with the frontal lobe. ANT is an efficienttool for studying visual attention and cognition.