Results 91 to 100 of about 4,072 (158)

Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex

Nature Communications
Successful navigation relies on reciprocal transformations between spatial representations in world-centered (allocentric) and self-centered (egocentric) frames of reference.
Xiaoyang Long, Daniel Bush, Bin Deng, Neil Burgess, Sheng-Jia Zhang   +4 more
doaj   +1 more source

Neuro-anatomical dissections of unilateral visual neglect symptoms: ALE meta-analysis of lesion-symptom mapping

Frontiers in Human Neuroscience, 2012
Unilateral visual neglect is commonly defined as impaired ability to attend to stimuli presented on the side of visual space contralateral to the brain lesion. However, behavioural analyses indicate that different neglect symptoms can dissociate.
Magdalena eChechlacz, Pia eRotshtein, Glyn W Humphreys   +2 more
doaj   +1 more source

Spatial memory deficit across aging: current insights of the role of 5-HT7 receptors

Frontiers in Behavioral Neuroscience, 2015
Elderly persons often face biological, psychological or social changes over time that may cause discomfort or morbidity. While some cognitive domains remain stable over time, others undergo a decline.
Gregory eBeaudet, Valentine eBouet, Christelle eJozet-Alves, Pascale eSchumann-Bard, Francois eDauphin, Eleni ePaizanis, Michel eBoulouard, Thomas eFreret   +7 more
doaj   +1 more source

What is the role of spatial processing in the decline of episodic memory in Alzheimer's disease? The "mental frame syncing" hypothesis

Frontiers in Aging Neuroscience, 2014
The current theories on episodic memory suggest a crucial role of spatial processing for an effective retrieval. When prompted by a retrieval cue, the full past scene can be retrieved through the process of pattern completion.
Silvia eSerino, Giuseppe eRiva, Giuseppe eRiva   +2 more
doaj   +1 more source

Spatial navigation in young versus older adults

Frontiers in Aging Neuroscience, 2013
Older age is associated with changes in the brain, including the medial temporal lobe, which may result in mild spatial navigation deficits, especially in allocentric navigation.
Ivana eGazova, Ivana eGazova, Jan eLaczó, Jan eLaczó, Eva eRubinova, Ivana eMokrisova, Ivana eMokrisova, Eva eHyncicova, Ross eAndel, Ross eAndel, Martin eVyhnalek, Martin eVyhnalek, Katerina eSheardova, Elizabeth J. Coulson, Jakub eHort, Jakub eHort   +15 more
doaj   +1 more source

Allocentric Perceiver: Disentangling Allocentric Reasoning from Egocentric Visual Priors via Frame Instantiation

CoRR
With the rising need for spatially grounded tasks such as Vision-Language Navigation/Action, allocentric perception capabilities in Vision-Language Models (VLMs) are receiving growing focus. However, VLMs remain brittle on allocentric spatial queries that require explicit perspective shifts, where the answer depends on reasoning in a target-centric ...
Hengyi Wang, Ruiqiang Zhang, Chang Liu 0089, Guanjie Wang, Zehua Ma, Han Fang, Weiming Zhang 0001   +6 more
openaire   +3 more sources

Effect of Allocentric Landmarks on Primate Gaze Behaviour in a Cue Conflict Task [PDF]

, 2016
The brain can remember the location of a peripheral target relative to self (egocentric) or to an external landmark (allocentric). The relative reliabilities of egocentric and allocentric coding had been examined in reach, but it was never explored in ...
Li, Jirui
core  

Grid cells: the missing link in understanding Parkinson’s disease?

Frontiers in Neuroscience
The mechanisms underlying Parkinson’s disease (PD) are complex and not fully understood, and the box-and-arrow model among other current models present significant challenges. This paper explores the potential role of the allocentric brain and especially
Alexander Reinshagen
doaj   +1 more source

Dissociating ego- and allocentric neglect after stroke: prevalence, laterality and outcome predictors

, 2017
Visuospatial neglect is a neuropsychological condition commonly experienced after stroke, whereby a patient is unable to attend to stimuli on their contralesional side.
Celine R. Gillebert, Nele Demeyere
core   +1 more source

ePoster

European Journal of Neurology, Volume 33, Issue S1, June 2026.
wiley   +1 more source