Welcome!
To use the personalized features of this site, please log in or register.
If you have forgotten your username or password, we can help.
My Menu
Saved Items

Theoretical Advances

Feature-based assessment of visuo-spatial neglect patients using hand-drawing tasks

Y. Liang1, R. M. GuestContact Information, M. C. Fairhurst1 and J. M. Potter2

(1)  Department of Electronics, University of Kent, Canterbury, UK
(2)  Kent and Canterbury Hospital, Canterbury, UK

Received: 27 October 2006  Accepted: 28 February 2007  Published online: 22 May 2007

Abstract  Visuo-spatial neglect (VSN) is a post-stroke condition in which a patient fails to respond to stimuli on one side of the visual field. Using an established pencil-and-paper-based method for the assessment of VSN (the Rivermead Behavioural Inattention Test) as a reference, a battery of computer-based hand-drawing tests is developed and shown to be effective in distinguishing between stroke subjects with and without neglect. The novel approach adopts measurements both of the outcome and the process by which the drawing tasks are executed. This approach provides a novel diagnostic capability which results in increased test sensitivity, a more objective assessment and a reduction in overall evaluation time. The paper describes the development of a binary assessment system using the computer-based acquisition and analysis of task data alongside feature selection techniques to maximise performance.

Keywords  Diagnostic feature analysis - Computer-based drawing assessment


Contact Information R. M. Guest
Email: r.m.guest@kent.ac.uk

Yiqing Liang   is currently a PhD student at the Department of Electronics at the University of Kent at Canterbury. She received her B.S degree in Image Communication from the Department of Information Engineering, Nanjing University of Post and Telecommunication, P.R China, in 2000. From 2000 to 2004, she worked in the Business Support System Division, China Telecom R&D Centre in GuangDong, P.R. China in the field of telecommunication business support system (BSS). Her primary research interests are in Statistical Pattern Recognition, Image Analysis, Medical Image Processing, and Biometrics.
MediaObjects/10044_2007_74_Figa_HTML.jpg
Richard Guest   obtained a BEng in Computer Science from the University of York in 1995 and a PhD in Electronic Engineering from the University of Kent in 2000. He has been a member of the academic staff at the University of Kent since 2000. Dr Guest’s research interests include hand-drawn data analysis for neuropsychological testing, biometric signature verification and forensic applications; statistical classification systems and biometric integration. He has published widely in the Academic Literature and served on a number of publication, conference, Standards development and research council review committees in this field.
MediaObjects/10044_2007_74_Figb_HTML.jpg
Michael Fairhurst   is Head of the Department of Electronics at the University of Kent in the UK. His research interests focus on computational architectures and algorithms for image analysis and classification, and applications including handwritten text reading and document processing, medical image analysis and, especially, security and biometrics. Professor Fairhurst sits on numerous Conference, Workshop, and Government-sponsored Committees, and on the Editorial Boards of several international Journals. He has published some 350 papers in the scientific literature, and is an elected Fellow of the International Association for Pattern Recognition (IAPR) in recognition of his contributions to the field.
MediaObjects/10044_2007_74_Figc_HTML.jpg
Jonathan Potter DM, FRCP   is a Consultant Geriatrician and Lead Stroke Physician at the Kent and Canterbury Hospital, Canterbury. His clinical responsibilities include the running of a 16-bedded Stroke Unit in Canterbury. The unit has a long running commitment to research, and has undertaken work evaluating of methods of rehabilitation, the comparison of outcomes between units and visual neglect in stroke. Dr Potter’s academic commitments include: Honorary Senior Lecturer at the University of Kent and Clinical Director of the Royal College of Physicians of London Clinical Effectiveness and Evaluation Unit, responsible for national audits of stroke, COPD, falls, continence and inflammatory bowel disease.
MediaObjects/10044_2007_74_Figd_HTML.jpg
Fulltext Preview (Small, Large)
Image of the first page of the fulltext

References secured to subscribers.



Export this article
Export this article as RIS | Text
 
Referenced by
3 newer articles

  1. Liang, Yiqing (2009) A computer-based quantitative assessment of visuo-spatial neglect using regression and data transformation. Pattern Analysis & Applications
    [CrossRef]
  2. Chen, Yixin (2009) Joint feature selection and classification for taxonomic problems within fish species complexes. Pattern Analysis and Applications
    [CrossRef]
  3. Manzar, A. (2008) New scale invariant template matching technique using hyper space image representation. Pattern Analysis and Applications
    [CrossRef]
Remote Address: 38.107.191.110 • Server: mpweb07
HTTP User Agent: CCBot/1.0 (+http://www.commoncrawl.org/bot.html)