Results 151 to 160 of about 16,160 (180)
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Impaired Allocentric Spatial Memory Underlying Topographical Disorientation
Reviews in the Neurosciences, 2006The cognitive processes supporting spatial navigation are considered in the context of a patient (CF) with possible very early Alzheimer's disease who presents with topographical disorientation. Her verbal memory and her recognition memory for unknown buildings, landmarks and outdoor scenes was intact, although she showed an impairment in face ...
BURGESS N +4 more
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Allocentrism and Perceptions of Helping
Journal of College Student Psychotherapy, 2000Abstract This study applied Brickman, Rabinowitz, Karuza, Coates, Cohn, and Kidder's (1982) models of helping and coping to an allocen-trism-idiocentrism framework. The main hypothesis was that the model endorsed would depend upon the level of acculturation.
John McCarthy, Holly Stadler
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Cerebellar Allocentric and Action-Intentional Spatial Neglect
Cognitive and Behavioral Neurology, 2014Contralesional hemispatial neglect most often results from lesions in the right posterior temporoparietal cortex. Less commonly, contralesional and ipsilesional neglect are caused by lesions in the frontal lobe. Although unilateral left cerebellar lesions have been reported to cause body-centered (egocentric) ipsilesional neglect, they have not been ...
Nicholas J, Milano, Kenneth M, Heilman
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Allocentric and Egocentric Updating of Spatial Memories.
Journal of Experimental Psychology: Learning, Memory, and Cognition, 2004In 4 experiments, the authors investigated spatial updating in a familiar environment. Participants learned locations of objects in a room, walked to the center, and turned to appropriate facing directions before making judgments of relative direction (e.g., "Imagine you are standing at X and facing Y.
Weimin Mou +3 more
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Allocentric spatial neglect with posterior cortical atrophy
Neurocase, 2014Patients with posterior cortical atrophy (PCA) have been reported to have neglect in the egocentric/ body-centered reference frame. This report describes a woman with PCA who had a right-sided stimulus-based form of allocentric visual neglect on cancellation, reading, and drawing tests. Her brain imaging revealed left parietal atrophy.
Eduardo M, Zilli, Kenneth M, Heilman
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Neuropsychologia, 2011
Allocentric cues can be used to encode locations in visuospatial memory, but it is not known how and when these representations are converted into egocentric commands for behaviour. Here, we tested the influence of different memory intervals on reach performance toward targets defined in either egocentric or allocentric coordinates, and then compared ...
Ying, Chen +2 more
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Allocentric cues can be used to encode locations in visuospatial memory, but it is not known how and when these representations are converted into egocentric commands for behaviour. Here, we tested the influence of different memory intervals on reach performance toward targets defined in either egocentric or allocentric coordinates, and then compared ...
Ying, Chen +2 more
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Allocentric representations of space in the hippocampus
Neuroscience Research, 2020The hippocampal-entorhinal system is essential for navigation and memory. The first description of spatially tuned place cell activity in area CA1 of the hippocampus suggested that spatial representations are not centered on self, but are rather allocentric.
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Multimethod Probes of Allocentrism and Idiocentrism
International Journal of Psychology, 1995Collectivism and individualism are cultural syndromes that have some common cores. Allocentrism and idiocentrism are constructs at the individual level that correspond to collectivism and individualism respectively at the cultural level. In two studies, the first with American (from Illinois) and the second with Japanese subjects, we examined the best ...
Harry C. Triandis +4 more
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Congenital blindness limits allocentric to egocentric switching ability
Experimental Brain Research, 2018Many everyday spatial activities require the cooperation or switching between egocentric (subject-to-object) and allocentric (object-to-object) spatial representations. The literature on blind people has reported that the lack of vision (congenital blindness) may limit the capacity to represent allocentric spatial information.
Ruggiero, Gennaro +2 more
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Spatial memory: how egocentric and allocentric combine
Trends in Cognitive Sciences, 2006Recent experiments indicate the need for revision of a model of spatial memory consisting of viewpoint-specific representations, egocentric spatial updating and a geometric module for reorientation. Instead, it appears that both egocentric and allocentric representations exist in parallel, and combine to support behavior according to the task.
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