斜视性弱视患者对运动显著性感知的受损及弱视眼同侧FEF脑区与视觉注意网络的失联
其他题名Impaired motion salience and disconnection of ipsilateral FEF from the attention network in strabismic amblyopia
Hao Wang; Sheila Crewther; Minglong Liang; Robin Laycock; Tao Yu; Bonnie Alexander; David Crewther; Jian Wang; Zhengqin Yin
2016
会议名称2016年第一届北京视觉科学会议
会议日期2016-07
会议地点北京
会议主办者中国科学院心理研究所
其他摘要

Purpose: To compare psychophysical performance and brain activation during a motion salience task and voluntary saccadesin adult strabismicamblyopes and controls.
Methods: The motion salience task involved discrimination and detection of a target of coherently moving dots. The second task required voluntary saccades to horizontal stimulus position changes. fMRI activation and functional connectivity between parieto-frontal attention network ROIs, and V1 and V5 were compared for the two tasks.
Results: Behavioural thresholds were higher for detection ofthe moving stimuli by the strabismic amblyopic eye compared to the fellow eye or control eyes. BOLD activation in IPS, FEF and V5 for both tasks, through the amblyopic eye was weaker than that to fellow eye or control subject eyes though no di?erence was seen in V1 activation to the motion task under any eye-viewing condition. Correlational connections between key nodes of the visual attention network activated by the amblyopic eye were abnormal in the motion task, with the FEF ipsilateral to the amblyopic eye the most isolated node.By contrast, the functional connections of this network were relatively normal for the voluntary saccade task.
Conclusions: Amblyopic eyes require slower speed and longer exposure for the detection of moving targets.Overall our results suggest that strabismic amblyopia is associated with reduced attention network activation during motion-driven attention tasks independent of V1.

关键词Strabismic amblyopia Visual attention fMRI Psychophysics
学科领域感知觉心理学
URL查看原文
收录类别其他
语种英语
文献类型会议论文
条目标识符http://ir.psych.ac.cn/handle/311026/20865
专题心理所主办学术会议_2016年第一届北京视觉科学会议_会议摘要
作者单位1.Southwest Eye Hospital/Southwest Hospital, Key Laboratory of Visual Damage and Regeneration and Restoration of Chongqing, Third Military Medical University, Chongqing 400038, China
2.School of Psychological Science, Faculty of Science, Technology and Engineering, La Trobe University, Melbourne, VIC 3086, Australia
3.Department of Radiology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China.
4.Centre for Human Psychophysiology, Swinburne University of Technology, VIC 3122, Australia.
推荐引用方式
GB/T 7714
Hao Wang,Sheila Crewther,Minglong Liang,等. 斜视性弱视患者对运动显著性感知的受损及弱视眼同侧FEF脑区与视觉注意网络的失联[C]. 见:2016年第一届北京视觉科学会议. 北京. 2016-07.http://vision.csp.escience.cn/dct/page/1.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hao Wang]的文章
[Sheila Crewther]的文章
[Minglong Liang]的文章
百度学术
百度学术中相似的文章
[Hao Wang]的文章
[Sheila Crewther]的文章
[Minglong Liang]的文章
必应学术
必应学术中相似的文章
[Hao Wang]的文章
[Sheila Crewther]的文章
[Minglong Liang]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。