Impaired recognition of faces and objects in dyslexia: Evidence for ventral stream dysfunction?
Impaired recognition of faces and objects in dyslexia: Evidence for ventral stream dysfunction?
复制标题
阅读障碍患者对面部和物体的识别能力受损：腹侧流功能障碍的证据？
作者：
H. Sigurdardottir;Eysteinn Ívarsson;Kristjana Kristinsdóttir;Á. Kristjánsson
目的
本研究的目的是确定阅读障碍者在识别面孔和其他复杂的非文字视觉对象时是否受损。根据一项荟萃分析，这是可以预期的，该分析显示，儿童和成人阅读障碍患者在左侧梭状回（位于腹侧视觉流的大脑区域）内显示出功能异常，该区域被认为支持对单词，面孔和其他物体的识别。
方法
20名成人阅读障碍者（M = 29岁）和20名匹配的典型阅读者（M = 29岁）参加了这项研究。根据成人阅读历史问卷评分和IS-FORM阅读评分，排除了一对阅读障碍的典型读者。在3个高级视觉处理任务上测量表现：剑桥面部记忆测试、范德比尔特整体面部处理测试和范德比尔特专业技能测试。
结果
患有阅读障碍的人在识别面部和其他视觉复杂物体方面受到损害。他们对面孔的整体处理似乎是完整的，这表明阅读障碍者可能在对视觉对象的部分处理中受到特别的损害。
结论
诵读困难症患者在阅读时遇到的困难可能是更普遍的高级视觉缺陷的最显著表现。
OBJECTIVE
The objective of this study was to establish whether or not dyslexics are impaired at the recognition of faces and other complex nonword visual objects. This would be expected based on a meta-analysis revealing that children and adult dyslexics show functional abnormalities within the left fusiform gyrus, a brain region high up in the ventral visual stream, which is thought to support the recognition of words, faces, and other objects.
METHOD
20 adult dyslexics (M = 29 years) and 20 matched typical readers (M = 29 years) participated in the study. One dyslexic-typical reader pair was excluded based on Adult Reading History Questionnaire scores and IS-FORM reading scores. Performance was measured on 3 high-level visual processing tasks: the Cambridge Face Memory Test, the Vanderbilt Holistic Face Processing Test, and the Vanderbilt Expertise Test.
RESULTS
People with dyslexia are impaired in their recognition of faces and other visually complex objects. Their holistic processing of faces appears to be intact, suggesting that dyslexics may instead be specifically impaired at part-based processing of visual objects.
CONCLUSIONS
The difficulty that people with dyslexia experience with reading might be the most salient manifestation of a more general high-level visual deficit.
影响因子：
4.1
作者：
Dundas, Eva M.;Plaut, David C.;Behrmann, Marlene
通讯作者：
Behrmann, Marlene
DOI：
10.1037/0096-1523.21.3.628
发表时间：
1995-06-01
影响因子：
2.1
作者：
FARAH, MJ;TANAKA, JW;DRAIN, HM
通讯作者：
DRAIN, HM
影响因子：
5.4
作者：
Farah, MJ;Wilson, KD;Tanaka, JN
通讯作者：
Tanaka, JN