Results 21 to 30 of about 16,160 (180)

Challenges for identifying the neural mechanisms that support spatial navigation: the impact of spatial scale. [PDF]

open access: yes, 2014
Spatial navigation is a fascinating behavior that is essential for our everyday lives. It involves nearly all sensory systems, it requires numerous parallel computations, and it engages multiple memory systems.
Aginsky   +81 more
core   +2 more sources

Facilitation of allocentric coding by virtue of object-semantics [PDF]

open access: yes, 2019
In the field of spatial coding it is well established that we mentally represent objects for action not only relative to ourselves, egocentrically, but also relative to other objects (landmarks), allocentrically.
Fiehler, Katja   +2 more
core   +2 more sources

Visual experience facilitates allocentric spatial representation [PDF]

open access: yesBehavioural Brain Research, 2013
Representing the position of the objects independently from our own position is a fundamental cognitive ability. Here we investigated whether this ability depends on visual experience. Congenitally blind, late blind and blindfolded sighted participants haptically learnt a room-sized regularly shaped array of objects, and their spatial memory was tested
Pasqualotto, Achille   +3 more
openaire   +5 more sources

A critical review of the allocentric spatial representation and its neural underpinnings: Toward a network-based perspective

open access: yesFrontiers in Human Neuroscience, 2014
While the widely studied allocentric spatial representation holds a special status in neuroscience research, its exact nature and neural underpinnings continue to be the topic of debate, particularly in humans.
Arne D. Ekstrom   +3 more
doaj   +1 more source

Altered hippocampal function in major depression despite intact structure and resting perfusion [PDF]

open access: yes, 2016
Background: Hippocampal volume reductions in major depression have been frequently reported. However, evidence for functional abnormalities in the same region in depression has been less clear.
A. Finkelmeyer   +18 more
core   +2 more sources

Egocentric and Allocentric Representations in Auditory Cortex [PDF]

open access: yesPLOS Biology, 2017
AbstractA key function of the brain is to provide a stable representation of an object’s location in the world. In hearing, sound azimuth and elevation are encoded by neurons throughout the auditory system and auditory cortex is necessary for sound localization.
Town, Stephen M.   +2 more
openaire   +5 more sources

Egocentric and allocentric spatial memory in healthy aging: performance on real-world tasks

open access: yesBrazilian Journal of Medical and Biological Research, 2019
Although normal aging has been related to several cognitive difficulties, other processes have been studied less, such as spatial memory. Our aim was to compare egocentric and allocentric memory in an elderly population using ecological tasks.
C. Fernandez-Baizan   +3 more
doaj   +1 more source

Genetic contributions to visuospatial cognition in Williams syndrome: insights from two contrasting partial deletion patients [PDF]

open access: yes, 2014
Background Williams syndrome (WS) is a rare neurodevelopmental disorder arising from a hemizygotic deletion of approximately 27 genes on chromosome 7, at locus 7q11.23.
A Antonell   +68 more
core   +3 more sources

A Principle for Learning Egocentric-Allocentric Transformation [PDF]

open access: yesNeural Computation, 2008
Numerous single-unit recording studies have found mammalian hippocampal neurons that fire selectively for the animal's location in space, independent of its orientation. The population of such neurons, commonly known as place cells, is thought to maintain an allocentric, or orientation-independent, internal representation of the animal's location in ...
Byrne, Patrick, Becker, Suzanna
openaire   +3 more sources

Neural substrates of visual spatial coding and visual feedback control for hand movements in allocentric and target-directed tasks

open access: yesFrontiers in Human Neuroscience, 2011
Neuropsychological evidence suggests that different brain areas may be involved in movements that are directed at visual targets (e.g. pointing or reaching), and movements that are based on allocentric visual information (e.g. drawing or copying).
Lore eThaler, Melvyn A. Goodale
doaj   +1 more source

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