Chapter

Case History and Initial Findings

Michael McCloskey

in Visual Reflections

Published in print May 2009 | ISBN: 9780195168693
Published online May 2009 | e-ISBN: 9780199871513 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195168693.003.0002

Series: Oxford Psychology Series

 							Case History and Initial Findings

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This chapter provides a brief case history for AH and describes the preliminary results that led to a focus on her processing of visual location and orientation information. AH was an 18-year-old freshman at Johns Hopkins University when the study began in December 1991. When testing ended in May 1995, she was 21 years old and had just graduated from Johns Hopkins. Her neurological status, educational history, and impaired location and orientation processing are described. AH was strikingly impaired across a variety of direct-copy tasks with diverse stimulus materials. Despite the fact that the stimuli remained in view while she produced her copies, she made frequent and blatant errors even for very simple stimuli. AH's direct-copy errors systematically involved mislocation or misorientation of stimulus objects or their parts. Moreover, the location and orientation errors were not random but instead took the form of left-right or up-down reflections. These results clearly demonstrated that AH suffered from some form of impairment that affected her processing of location and orientation information.

Keywords: visual perception; visual processing; visual location; orientation; location processing

Chapter.  2562 words.  Illustrated.

Subjects: Cognitive Psychology

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