(Con)text-specific effects of visual dysfunction on reading in posterior cortical atrophy

Reading deficits are a common early feature of the degenerative syndrome posterior cortical atrophy (PCA) but are poorly understood even at the single word level. The current study evaluated the reading accuracy and speed of 26 PCA patients, 17 typical Alzheimer's disease (tAD) patients and 14...

Full description

Saved in:
Bibliographic Details
Published in:Cortex 2014-08, Vol.57 (Aug), p.92-106
Main Authors: Yong, Keir X.X., Shakespeare, Timothy J., Cash, Dave, Henley, Susie M.D., Warren, Jason D., Crutch, Sebastian J.
Format: Article
Language:English
Subjects:
Acquired dyslexia
Adult
Adult and adolescent clinical studies
Aged
Aged, 80 and over
Alzheimer's disease (AD)
Atrophy
Biological and medical sciences
Cerebral Cortex - pathology
Crowding
Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases
Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes
Dyslexia - pathology
Female
Humans
Male
Medical sciences
Middle Aged
Nervous system (semeiology, syndromes)
Neurology
Neuropsychological Tests
Organic mental disorders. Neuropsychology
Parietal Lobe - pathology
Pattern Recognition, Visual
Posterior cortical atrophy (PCA)
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Reading
Research Report
Visual Perception - physiology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Reading deficits are a common early feature of the degenerative syndrome posterior cortical atrophy (PCA) but are poorly understood even at the single word level. The current study evaluated the reading accuracy and speed of 26 PCA patients, 17 typical Alzheimer's disease (tAD) patients and 14 healthy controls on a corpus of 192 single words in which the following perceptual properties were manipulated systematically: inter-letter spacing, font size, length, font type, case and confusability. PCA reading was significantly less accurate and slower than tAD patients and controls, with performance significantly adversely affected by increased letter spacing, size, length and font (cursive 
ISSN:0010-9452
1973-8102
DOI:10.1016/j.cortex.2014.03.010