%0 Journal Article
%T DEVELOPMENTAL DYSLEXIA AND PERCEPTUAL PROCESSING<br>发展性阅读障碍与知觉加工
%A Meng Xiangzhi
%A Zhou Xiaolin
%A Zeng Biao
%A Sai Xiaoguang
%A <br>孟祥芝
%A 周晓林
%A 曾飚
%A 赛晓光
%J 心理学报
%D 2002
%I 
%X Many behavioral and neurophysiological studies in recent years found that developmental dyslexia is related to deficits in basic perceptual processing. The magnocellular theory, proposed mostly by researchers working in the visual processing field, postulates that dyslexia is the result of a deficit in the magnocellular part of the visual system. This magnocellular system respondes to rapid changes in visual stimulation and a deficit here would lead the brain to confuse neural activities attributed to different fixations between saccades during text reading. A similar deficit also existes in the auditory domain, where dyslexics show difficulties in processing rapid, sequential, and transit sounds. It is believed that a general impairment in temporal processing underlies dyslexics poor performance in reading. Theories emphasizing the role of basic perceptual processing in reading impairment is in contrast with theories that focus on the deficits in the linguistic domain, reflecting the significant advancement in cognitive neuroscience and the decline of the modular approaches.
%K developmental dyslexia
%K perceptual processing
%K magnocellular deficit
%K temporal processing deficit<br>发展性阅读障碍
%K 知觉加工
%K 巨细胞障碍
%K 时间加工障碍
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=C94E3F05CFD5644C9DAA97BEB9148D4784B6B22E64D84F4E&jid=1EE72F392B87F45015B3CA6D9A7AFA6F&aid=031367E39520105A&yid=C3ACC247184A22C1&vid=339D79302DF62549&iid=E158A972A605785F&sid=D767283A3B658885&eid=4BB057F167CF3A60&journal_id=0439-755X&journal_name=心理学报&referenced_num=13&reference_num=29