Short report
The selective inability to draw horizontal lines: a peculiar
constructional disorder
a Department of Neurological Sciences,
"Federico II" University, Naples, Italy, b "S Maugeri Foundation", IRCCS,
Rehabilitation Center of Campoli, Campoli-Telese (BN), 82030 Italy
Correspondence to: Dr Dario Grossi, Clinica Neurologica, Ed 17, Nuovo Policlinico, Via S Pansini 5, 80131 Napoli, Italy.
Received 17 June 1997 and in revised form 29 September 1997;
Accepted 23 October 1997
A patient is described who was affected by degenerative
dementia and who developed severe constructional apraxia. She showed a
dissociation between the construction of horizontal lines (impaired) and oblique or vertical lines (spared) which has never been reported previously. A battery of tests disclosed that this phenomenon was
consistent across a range of experimental conditions and that a similar
dissociation was evident in perceptual and representational domains.
This peculiar clinical finding suggests that mental representations of
horizontal and vertical spatial relations in an egocentric coordinate
system are functionally dissociated.
© 1998 by Journal of Neurology, Neurosurgery, and Psychiatry
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
- Full Text
- Full Text (PDF)
- Submit a response
- Alert me when this article is cited
- Alert me when eLetters are posted
- Alert me if a correction is posted
Services
- Email this link to a friend
- Similar articles in this journal
- Similar articles in PubMed
- Add article to my folders
- Download to citation manager
- Request Permissions
Citing Articles
Google Scholar
PubMed
Topic Collections
Bookmark with
Register for free content
The full back archive is now available for all BMJ Journals. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006 right back to volume 1 issue 1. Register here to access the free archive of all BMJ Journals.
Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.
