TY - JOUR
T1 - Time Perception in Spatial Neglect
T2 - A Distorted Representation?
AU - Calabria, Marco
AU - Jacquin-Courtois, Sophie
AU - Miozzo, Antonio
AU - Rossetti, Yves
AU - Padovani, Alessandro
AU - Cotelli, Maria
AU - Miniussi, Carlo
PY - 2011/3
Y1 - 2011/3
N2 - It has been proposed that time, space, and numbers share the same metrics and cortical network, the right parietal cortex. Several recent investigations have demonstrated that the mental number line representation is distorted in neglect patients. The aim of this study is to investigate the relationship between time and spatial configuration in neglect patients. Method: Fourteen right-brain damaged patients (six with neglect and eight without neglect), as well as eight age-matched healthy controls, performed a time discrimination task. A standard tone (short: 700 ms and long: 1,700 ms) had to be confronted in duration to a test tone. Test tone differed of 100, 200, and 300 ms respect to the standard tone duration. Results: Neglect patients performed significantly worse than patients without neglect and healthy controls, irrespective of the duration of the standard tone. Conclusion: These results support the hypothesis that mental representations of space and time both share, to some extent, a common cortical network. Besides, spatial neglect seems to distort the time representation, inducing an overestimation of time durations.
AB - It has been proposed that time, space, and numbers share the same metrics and cortical network, the right parietal cortex. Several recent investigations have demonstrated that the mental number line representation is distorted in neglect patients. The aim of this study is to investigate the relationship between time and spatial configuration in neglect patients. Method: Fourteen right-brain damaged patients (six with neglect and eight without neglect), as well as eight age-matched healthy controls, performed a time discrimination task. A standard tone (short: 700 ms and long: 1,700 ms) had to be confronted in duration to a test tone. Test tone differed of 100, 200, and 300 ms respect to the standard tone duration. Results: Neglect patients performed significantly worse than patients without neglect and healthy controls, irrespective of the duration of the standard tone. Conclusion: These results support the hypothesis that mental representations of space and time both share, to some extent, a common cortical network. Besides, spatial neglect seems to distort the time representation, inducing an overestimation of time durations.
KW - Brain damaged patients
KW - Parietal cortex
KW - Spatial neglect
KW - Theory of magnitude
KW - Time perception
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U2 - 10.1037/a0021304
DO - 10.1037/a0021304
M3 - Article
C2 - 21381826
AN - SCOPUS:79952602023
VL - 25
SP - 193
EP - 200
JO - Neuropsychology
JF - Neuropsychology
SN - 0894-4105
IS - 2
ER -