TY - JOUR
T1 - Stimulus modulation of pseudoneglect
T2 - Influence of line geometry
AU - McCourt, Mark E.
AU - Garlinghouse, Matt
N1 - Funding Information:
This research was supported by a grant (to MEM) from the National Eye Institute (EY12267-01). The authors also thank George Jewell, Jessica Slater and Kari Ronningen for help with stimulus preparation, data collection and analysis.
PY - 2000/4
Y1 - 2000/4
N2 - A variety of stimulus factors have recently been shown to influence the performance of normal subjects on line bisection tasks (i.e., pseudoneglect), independent of motoric factors such as scanning or hand use [McCourt and Jewell (1999) Neuropsychologia 35, 843-55]. An experiment is described which further examined the modulating influence of line geometry in determining the magnitude of pseudoneglect. Subjects bisected horizontally oriented trapezoidal lines presented in central vision whose narrow end pointed either left or right. A highly significant influence of line geometry was found which modulated a tonic leftward error (i.e., pseudoneglect). The results are interpreted in the context of a 'center-of-mass' effect [Shuren, Jacobs and Heilman (1997) Brain and Cognition, 34, 293-300]. Further studies designed to tease apart the potentially independent effects of perceptual and attentional asymmetry on bisection performance are suggested. Copyright (C) 2000 Elsevier Science Ltd.
AB - A variety of stimulus factors have recently been shown to influence the performance of normal subjects on line bisection tasks (i.e., pseudoneglect), independent of motoric factors such as scanning or hand use [McCourt and Jewell (1999) Neuropsychologia 35, 843-55]. An experiment is described which further examined the modulating influence of line geometry in determining the magnitude of pseudoneglect. Subjects bisected horizontally oriented trapezoidal lines presented in central vision whose narrow end pointed either left or right. A highly significant influence of line geometry was found which modulated a tonic leftward error (i.e., pseudoneglect). The results are interpreted in the context of a 'center-of-mass' effect [Shuren, Jacobs and Heilman (1997) Brain and Cognition, 34, 293-300]. Further studies designed to tease apart the potentially independent effects of perceptual and attentional asymmetry on bisection performance are suggested. Copyright (C) 2000 Elsevier Science Ltd.
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U2 - 10.1016/S0028-3932(99)00085-8
DO - 10.1016/S0028-3932(99)00085-8
M3 - Article
C2 - 10683402
AN - SCOPUS:0033969455
SN - 0028-3932
VL - 38
SP - 520
EP - 524
JO - Neuropsychologia
JF - Neuropsychologia
IS - 4
ER -