Language Imaging Lab Aphasia Battery

(~20 minutes)

Oral Reading

Reading aloud assesses orthographic input, phonologic output, and articulation systems, and connecting pathways between these systems. Patients try to read aloud nonwords with unambiguous (highly consistent) pronunciations, regular words, and irregular words. Reading nonwords depends mainly on a direct mapping from orthography to phonology, whereas reading irregular words may depend in some cases on the semantic system or on non-semantic whole word representations. A selective deficit of the direct reading pathway ('phonological dyslexia' (Beauvois & Derouesne, 1979)) is diagnosed if nonword accuracy is abnormally low relative to words and if the rate of lexicalization errors is abnormally high. Semantic errors constitute evidence of an additional deficit in the semantic pathway ('deep dyslexia' (Coltheart et al., 1980)). A selective deficit of the semantic reading pathway ('surface dyslexia' (Patterson et al., 1985)) is diagnosed if accuracy on irregular words is low relative to regular words, and if the rate of regularization errors is abnormally high (Binder et al., 2016).



Scoring and Data analysis:


Beauvois MF, & Derouesne J. (1979). Phonological alexia: Three dissociations. Journal of Neurology, Neurosurgery, and Psychiatry, 42, 1115-1124.

Binder JR, Pillay SB, Humphries CJ, Gross WL, Graves WW, & Book DS. (2016). Surface errors without semantic impairment in acquired dyslexia: A voxel-based lesion-symptom mapping study. Brain, 139, 1517-1526.

Coltheart M, Patterson K, & Marshall J. (1980). Deep dyslexia. London: Routledge & Kegan Paul.

Patterson KE, Marshall JC, & Coltheart M. (Eds.). (1985). Surface dyslexia: Neuropsychological and cognitive studies of phonological reading. Hillsdale, NJ: Lawrence Erlbaum Assoc.