Dynamic visual speech perception in a patient with visual form agnosia

被引:12
|
作者
Munhall, KG [1 ]
Servos, P
Santi, A
Goodale, MA
机构
[1] Queens Univ, Dept Psychol, Kingston, ON K7L 3N6, Canada
[2] Queens Univ, Dept Otolaryngol, Kingston, ON, Canada
[3] ATR Human Informat Sci Labs, Kyoto, Japan
[4] Wilfrid Laurier Univ, Dept Psychol, Waterloo, ON N2L 3C5, Canada
[5] Univ Western Ontario, Dept Psychol, London, ON, Canada
[6] Univ Western Ontario, CIHR Grp Act Percept, London, ON, Canada
关键词
audiovisual speech perception; visual form agnosia; visual motion; face perception;
D O I
10.1097/00001756-200210070-00020
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
To examine the role of dynamic cues in visual speech perception, a patient with visual form agnosia (DF) was tested with a set of static and dynamic visual displays of three vowels. Five conditions were tested: (1) auditory only which provided only vocal pitch information, (2) dynamic visual only, (3) dynamic audiovisual with vocal pitch information, (4) dynamic audiovisual with full voice information and (5) static visual only images of postures during vowel production. DF showed normal performance in all conditions except the static visual only condition in which she scored at chance. Control subjects scored close to ceiling in this condition. The results suggest that spatiotemporal signatures for objects and events are processed separately from static form cues.
引用
收藏
页码:1793 / 1796
页数:4
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