Abstract
When required to set the endpoints of an imaginary horizontal line of a given length on the basis of its midpoint printed on a sheet of paper, left neglect patients most frequently misplaced endpoints leftwards. Though giving rise to the very same disproportion usually found with these patients on canonical line bisection tasks, this behaviour cannot be accommodated by current explanations of unilateral neglect. When the task was executed during leftward optokinetic stimulation (OKS), a manoeuvre known temporarily to improve neglect symptoms, the disproportion increased instead of vanishing. We therefore suggest that unilateral neglect is a manifestation of a disorder primarily implying a horizontal anisometry of space representation and that manipulations such as OKS may remove neglect without normalizing the representational medium itself.
| Original language | English |
|---|---|
| Pages (from-to) | 851-857 |
| Number of pages | 7 |
| Journal | Brain |
| Volume | 119 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jun 1996 |
Keywords
- Optokinetic stimulation
- Space representation
- Unilateral neglect
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Beyond unilateral neglect. / Bisiach, Edoardo; Pizzamiglio, Luigi; Nico, Daniele; Antonucci, Gabriella.
In: Brain, Vol. 119, No. 3, 06.1996, p. 851-857.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Beyond unilateral neglect
AU - Bisiach, Edoardo
AU - Pizzamiglio, Luigi
AU - Nico, Daniele
AU - Antonucci, Gabriella
PY - 1996/6
Y1 - 1996/6
N2 - When required to set the endpoints of an imaginary horizontal line of a given length on the basis of its midpoint printed on a sheet of paper, left neglect patients most frequently misplaced endpoints leftwards. Though giving rise to the very same disproportion usually found with these patients on canonical line bisection tasks, this behaviour cannot be accommodated by current explanations of unilateral neglect. When the task was executed during leftward optokinetic stimulation (OKS), a manoeuvre known temporarily to improve neglect symptoms, the disproportion increased instead of vanishing. We therefore suggest that unilateral neglect is a manifestation of a disorder primarily implying a horizontal anisometry of space representation and that manipulations such as OKS may remove neglect without normalizing the representational medium itself.
AB - When required to set the endpoints of an imaginary horizontal line of a given length on the basis of its midpoint printed on a sheet of paper, left neglect patients most frequently misplaced endpoints leftwards. Though giving rise to the very same disproportion usually found with these patients on canonical line bisection tasks, this behaviour cannot be accommodated by current explanations of unilateral neglect. When the task was executed during leftward optokinetic stimulation (OKS), a manoeuvre known temporarily to improve neglect symptoms, the disproportion increased instead of vanishing. We therefore suggest that unilateral neglect is a manifestation of a disorder primarily implying a horizontal anisometry of space representation and that manipulations such as OKS may remove neglect without normalizing the representational medium itself.
KW - Optokinetic stimulation
KW - Space representation
KW - Unilateral neglect
UR - http://www.scopus.com/inward/record.url?scp=0029930748&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029930748&partnerID=8YFLogxK
U2 - 10.1093/brain/119.3.851
DO - 10.1093/brain/119.3.851
M3 - Article
C2 - 8673497
AN - SCOPUS:0029930748
VL - 119
SP - 851
EP - 857
JO - Brain
JF - Brain
SN - 0006-8950
IS - 3
ER -