We asked 12 right-brain-damaged patients (6 with left neglect signs and 6 without left neglect signs) to perform a straight ahead pointing task and a visual detection task with lateralized motor response, in order to investigate the relationship between the position of the egocentric reference and response time and accuracy in producing lateralized arm movements. Results showed that there was no correlation between the position of the egocentric reference and neglect signs, nor between the position of the egocentric reference and the latencies to direct a motor response toward either side of space. These findings were interpreted within the context of egocentric hypotheses of neglect. In particular, it was suggested that attentional or intentional neglect signs cannot be considered as a direct consequence of an ipsilesional deviation of the egocentric reference.

Chokron, S., Bartolomeo, P., Position of the egocentric reference and directional arm movements in right-brain-damaged patients, <<BRAIN AND COGNITION>>, 1998; 37 (3): 405-418. [doi:10.1006/brcg.1998.1005] [http://hdl.handle.net/10807/20148]

Position of the egocentric reference and directional arm movements in right-brain-damaged patients

Bartolomeo, Paolo
1998

Abstract

We asked 12 right-brain-damaged patients (6 with left neglect signs and 6 without left neglect signs) to perform a straight ahead pointing task and a visual detection task with lateralized motor response, in order to investigate the relationship between the position of the egocentric reference and response time and accuracy in producing lateralized arm movements. Results showed that there was no correlation between the position of the egocentric reference and neglect signs, nor between the position of the egocentric reference and the latencies to direct a motor response toward either side of space. These findings were interpreted within the context of egocentric hypotheses of neglect. In particular, it was suggested that attentional or intentional neglect signs cannot be considered as a direct consequence of an ipsilesional deviation of the egocentric reference.
1998
Inglese
Chokron, S., Bartolomeo, P., Position of the egocentric reference and directional arm movements in right-brain-damaged patients, <<BRAIN AND COGNITION>>, 1998; 37 (3): 405-418. [doi:10.1006/brcg.1998.1005] [http://hdl.handle.net/10807/20148]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/20148
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