SPATIALLY DETERMINED DEFICITS IN LETTER AND WORD-PROCESSING

被引:65
作者
RAPP, BC
CARAMAZZA, A
机构
[1] The Johns Hopkins University, Baltimore
关键词
D O I
10.1080/02643299108253375
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
We describe the performance of a brain-damaged subject, HR, whose reading performance can be described as letter-by-letter reading. On a number of experimental tasks she exhibited deficits in letter and bar detection. Her performance in these tasks indicated that her impairment in nonlexical letter detection tasks is spatially determined. We interpret the results within a multi-stage model of prelexical visual/perceptual processing. Within such a model, the impairments can be attributed to deficits at retino-centric and stimulus-centred levels of representation. We explain HR's letter-by-letter reading performance in terms of these deficits. In addition, we attempt to account for the differences in reading performance among patients with spatially determined deficits in terms of the proposed multi-stage model of word recognition.
引用
收藏
页码:275 / 311
页数:37
相关论文
共 25 条
[1]  
AVERBACH E, 1968, CONT THEORY RES VISU
[2]   ANALYSIS OF WORD-SUPERIORITY EFFECT [J].
BARON, J ;
THURSTON, I .
COGNITIVE PSYCHOLOGY, 1973, 4 (02) :207-228
[3]  
BEHRMANN M, IN PRESS BRAIN
[4]   WORD RECOGNITION AND ORTHOGRAPHIC CONTEXT EFFECTS IN A LETTER-BY-LETTER READER [J].
BUB, DN ;
BLACK, S ;
HOWELL, J .
BRAIN AND LANGUAGE, 1989, 36 (03) :357-376
[5]  
BUB DN, 1988, PURE ALEXIA FUNCTION
[6]   LEVELS OF REPRESENTATION, COORDINATE FRAMES, AND UNILATERAL NEGLECT [J].
CARAMAZZA, A ;
HILLIS, AE .
COGNITIVE NEUROPSYCHOLOGY, 1990, 7 (5-6) :391-445
[7]   VISUAL-SEARCH AND STIMULUS SIMILARITY [J].
DUNCAN, J ;
HUMPHREYS, GW .
PSYCHOLOGICAL REVIEW, 1989, 96 (03) :433-458
[8]  
EGETH H, 1972, COGNITIVE PSYCHOL, V3, P647
[9]   NEGLECT DYSLEXIA AND THE EARLY VISUAL PROCESSING OF LETTERS IN WORDS AND NONWORDS [J].
ELLIS, AW ;
FLUDE, BM ;
YOUNG, AW .
COGNITIVE NEUROPSYCHOLOGY, 1987, 4 (04) :439-464
[10]   PURE ALEXIA AS A VISUAL IMPAIRMENT - A RECONSIDERATION [J].
FARAH, MJ ;
WALLACE, MA .
COGNITIVE NEUROPSYCHOLOGY, 1991, 8 (3-4) :313-334