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Repetitive exploration towards locations that no longer carry a target in patients with neglect
Author(s) -
Nys Gudrun M. S.,
Stuart Marije,
Dijkerman H. Chris
Publication year - 2010
Publication title -
journal of neuropsychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 37
eISSN - 1748-6653
pISSN - 1748-6645
DOI - 10.1348/174866408x402424
Subject(s) - neglect , disengagement theory , psychology , carry (investment) , cognitive psychology , developmental psychology , audiology , psychiatry , medicine , gerontology , finance , economics
About 50% of neglect patients show ipsilesional target re‐exploration on neglect tasks and in daily life. The present study examines whether omissions and revisitings are due to disengagement failure from visible stimuli on the ipsilesional side. Thirteen patients with neglect and nine healthy controls were tested with three versions of the Bells test on touch screen, i.e. a standard cancellation in which targets have to be marked, an erase cancellation in which targets have to be erased, and a condition in which all items (including distracters) have to be erased. Whereas omissions decreased in the full‐erase condition, revisitings were the most prominent in this condition. Our study shows that neglect patients also return to previously visited locations which no longer carry a target.