slow but accurate in WAIS-R Block Design. Her nonlanguage visual memory
was impaired, and D.N. showed problems in mental rotation (see Emmorey
et al., 1995, for some discussion).

D.N. did show problems in using some spatial devices in ASL. She showed
impairments in coreference and discourse cohesion. This was manifested as
a lack of maintenance of spatial indexing for person agreement, pronominal
reference, and locative indexing. Corina reported a hierarchy of impairment
in D.N.'s mapping of spatial relations using linguistic devices, which was
worse in ASL than in English. D.N. showed great problems with ASL de-
scriptions of room layouts, which was not evident in her analogous spoken
descriptions. D.N. revealed specific deficits in her use of ASL classifiers.
Poizner and Kegl ( 1992) reported that D.N.'s use of signing space was
asymmetrical, favoring right-sided locations.

This work was supported in part from a grant from the University of Wash-
ington, RRF-13401, awarded to David Corina. I thank Drs. Coppens, Lebrun,
and Basso, and Connie Schachtel for their editorial assistance.

Baker C., & Padden C. ( 1978). "Focusing on the nonmanual components of American Sign
Language". In P. Siple (Ed.), Understanding language through sign language research (pp.
27-57). New York: Academic Press.

Baker-Shenk C. ( 1983). A micro analysis of the nonmanual components of questions in Ameri-
can Sign Language. Unpublished doctoral dissertation, University of California, Berkeley.

Bates E., & Wulfeck B. ( 1989). "Crosslinguistics studies of aphasia". In B. MacWhinney & E. Bates
(Eds.), The crosslinguistic study of sentence processing (pp. 328 -371). New York:
Cambridge University Press.

Bates E., Wulfeck B., & MacWhinney B. ( 1991). "Cross-linguistic studies in aphasia: An overview".
Brain and Language, 41( 2), 123 - 148.

Battison R. ( 1978). Lexical borrowing in American Sign Language. Silver Spring, MD: Linstok
Press.

Bellugi U., Bihrle A., & Corina D. ( 1991). "Linguistic and spatial development: Dissociations
between cognitive domains". In N. A. Krasnegor, D. M. Rumaugh, R. L. Schiefelbusch, & M. Studdert-Kennedy
(Eds.), Biological determinants of language development (pp. 363-393).
Hillsdale, NJ: Lawrence Erlbaum Associates.

Blumstein S. E. ( 1973). A phonological investigation of aphasic speech. The Hague: Mouton.

Boyes P. ( 1973). Developmental phonology for ASL. Unpublished manuscript, Salk Institute for
Biological Studies at La Jolla, CA.

Brentari D. ( 1990). Theoretical foundations of American Sign Language phonology. Unpub-
lished doctoral dissertation, University of Chicago, Chicago.

Brentari D., Poizner H., & Kegl J. ( 1995). "Aphasic and Parkinsonian signing: Differences in
phonological disruption". Brain and Language, 48( 1), 69 - 105.

Brody J. ( 1992, June 10). "When brain damage disrupts speech". New York Times, p. C13.

-305-