Prismatic adaptation effects on spatial representation of time in neglect patients

Processing of temporal information may require the use of spatial attention to represent time along a mental time line. We used prismatic adaptation (PA) to explore the contribution of spatial attention to the spatial representation of time in right brain damaged patients with and without neglect of...

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Bibliographic Details
Published in:Cortex 2013-01, Vol.49 (1), p.120-130
Main Authors: Oliveri, Massimiliano, Magnani, Barbara, Filipelli, Alessandra, Avanzi, Stefano, Frassinetti, Francesca
Format: Article
Language:English
Subjects:
Adaptation, Physiological - physiology
Adaptations
Adult and adolescent clinical studies
Aged
Aged, 80 and over
Attention
Attention - physiology
Biological and medical sciences
Brain
Cortex (temporal)
Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes
Female
Functional Laterality - physiology
Humans
Information processing
Male
Medical sciences
Middle Aged
Neglect syndromes
Nervous system (semeiology, syndromes)
Neurology
Neuropsychological Tests
Organic mental disorders. Neuropsychology
Perceptual Disorders - physiopathology
Prismatic adaptation
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Space Perception - physiology
Spatial attention
spatial discrimination
Spatial representation of time
Temporal deficits
Temporal variations
Time Perception - physiology
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Summary:Processing of temporal information may require the use of spatial attention to represent time along a mental time line. We used prismatic adaptation (PA) to explore the contribution of spatial attention to the spatial representation of time in right brain damaged patients with and without neglect of left space and in age-matched healthy controls. Right brain damaged patients presented time underestimation deficits, that were significantly greater in patients with neglect than in patients without neglect. PA inducing leftward attentional deviation reduced time underestimation deficit in patients with neglect. The results support the hypothesis that a right hemispheric network has a role, per se, in time perception. Moreover, they suggest that right hemisphere is important in time perception for its control of spatial attention, engaged in spatial representation of time. Procedures that ameliorate left spatial deficits could also be useful for modulating temporal deficits in right brain damaged patients with neglect.
ISSN:0010-9452
1973-8102
DOI:10.1016/j.cortex.2011.11.010