基于概念的知觉学习
其他题名Perceptual Learning at a Conceptual Level
Rui Wang; Jie Wang; Jun-Yun Zhang; Xin-Yu Xie; Yu-Xiang Yang; Shu-Han Luo; Cong Yu; Wu Li
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: Humans can learn to abstract and conceptualize the shared visual features defining an object category in object learning. Therefore, learning is generalizable to transformations of familiar objects and even to new objects that di?er in other physical properties. In contrast, visual perceptual learning (VPL), improvement in discriminating ?ne di?erences of a basic visual feature through training, is commonly regarded as speci?c and low-level learning due to its speci?city to the trained stimulus conditions. Such location and orientation speci?city is taken as evidence for neural plasticity in V1 or improved readout of V1 signals. However, new training methods have shown complete VPL transfer across stimulus locations and orientations, suggesting the involvement of high-level cognitive processes. Here we report that VPL bears similar properties of object learning.
Methods & Results:  Speci?cally, we trained human observers to discriminate the explicit orientation of luminance gratings encoded by V1 neurons; or the implicit orientation of bilaterally symmetric dot patterns encoded by higher cortical areas. We compared the mutual transfer of learning between these two distinct stimuli. Learning in orientation discrimination of the symmetric dot patterns transferred completely to the gratings. In contrast, learning in orientation discrimination of the gratings transferred only partially to the dot patterns; but subsequent exposure to the same-oriented dot patterns in an irrelevant task (a Training-Plus-Exposure technique) further markedly reduced orientation thresholds for the dot patterns, achieving a complete learning transfer from the gratings to the dot patterns. Similarly, motion direction discrimination learning is transferable between the ?rst- and second-order motion signals, replicating the same patterns of learning transfer.
Conclusion: These results suggest that perceptual learning can take place at a conceptual level and generalize to stimuli with different physical properties. Our findings thus reconcile perceptual and object learning into a uni?ed framework.
关键词perceptual learning transfer orientation motion direction
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/311026/20781
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.Department of Psychology, University of Cambridge, Cambridge, UK, CB2 3EB,
2.Department of Psychology, Peking University, Beijing, China, 100871,
3.Department of Psychology, Peking University, Beijing, China, 100871,
推荐引用方式
GB/T 7714
Rui Wang,Jie Wang,Jun-Yun Zhang,等. 基于概念的知觉学习[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
[Rui Wang]的文章
[Jie Wang]的文章
[Jun-Yun Zhang]的文章
百度学术
百度学术中相似的文章
[Rui Wang]的文章
[Jie Wang]的文章
[Jun-Yun Zhang]的文章
必应学术
必应学术中相似的文章
[Rui Wang]的文章
[Jie Wang]的文章
[Jun-Yun Zhang]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。