case_studies_worksheet - Casestudy:DB

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Case study: DB DB’s right primary visual cortex was surgically removed (at the age of  33) for treatment of a non-malignant tumor situated in the right visual  cortex   (V1).   This   intervention   resulted   in   a   dense   hemianopia  (impairment   of   vision)   affecting   the   left   visual   field.     Although   DB  reported no visual awareness in his left field of vision, tests revealed he  was still able to discriminate and identify images on the basis of their  form within his blind field.  During the original testing, he demonstrated  successful   manual   localization,   saccadic   localization,   orientation  discrimination and motion detection. DB was diagnosed as having “blindsight”.  Although he was not consciously aware of  having visual information from his left field, his responses on forced choice guessing  experiments demonstrated that he was somehow receiving visual information. 1.
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This note was uploaded on 09/13/2010 for the course PSC 78627 taught by Professor Karenbales during the Fall '10 term at UC Davis.

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case_studies_worksheet - Casestudy:DB

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