Results 1 to 10 of about 2,994 (143)

Postural adaptation of the spatial reference frames to microgravity: back to the egocentric reference frame. [PDF]

PLoS ONE, 2010
BACKGROUND: In order to test how gravitational information would affect the choice of stable reference frame used to control posture and voluntary movement, we have analysed the forearm stabilisation during sit to stand movement under microgravity ...
Sébastien Viel, Marianne Vaugoyeau, Christine Assaiante   +2 more
doaj   +6 more sources

Egocentric and Allocentric Reference Frames Can Flexibly Support Contextual Cueing [PDF]

Frontiers in Psychology, 2021
We investigated if contextual cueing can be guided by egocentric and allocentric reference frames. Combinations of search configurations and external frame orientations were learned during a training phase.
Lei Zheng, Jan-Gabriel Dobroschke, Stefan Pollmann, Stefan Pollmann, Stefan Pollmann   +4 more
doaj   +6 more sources

Egocentric Dominance in Spatial Representations: The Role of Environmental Familiarity in Building Cognitive Maps [PDF]

Brain and Behavior
Background Mental representations of spatial layouts and object locations are essential for building cognitive maps, which primarily rely on allocentric and egocentric reference frames. However, it remains unclear which reference frame individuals prefer
Shuting Lin, Senning Zheng, Yidan Qiu, Xiaoyu Zheng, Shuxin Jia, Taihan Chen, Ruiwang Huang   +6 more
doaj   +2 more sources

The neural basis of the egocentric and allocentric spatial frame of reference [PDF]

Brain Research, 2007
The present study examines the functional and anatomical underpinnings of egocentric and allocentric coding of spatial coordinates. For this purpose, we set up a functional magnet resonance imaging experiment using verbal descriptions of spatial relations either with respect to the listener (egocentric) or without any body-centered relations ...
Kirsten Jordan, Torsten Wüstenberg, Fred Mast   +2 more
exaly   +5 more sources

The Simon effect based on the egocentric and allocentric reference frame [PDF]

Attention, Perception, and Psychophysics, 2015
The classic Simon effect refers to the phenomenon that responses are faster when the task-irrelevant egocentric stimulus location is on the same side as the response hand than when not. However, the spatial location of an object often varies according to which reference frame the object location was represented in, e.g., egocentric versus allocentric ...
, Hang Zeng
exaly   +3 more sources

Cognitive load in switching between egocentric and allocentric spatial frames of reference: a pupillometry study [PDF]

Scientific Reports
Every day we combine and switch between body-centered (egocentric) and object-centered (allocentric) spatial representations. Several studies so far have reported a greater difficulty to switch from an allocentric reference frame to an egocentric one ...
Renato Orti, Tina Iachini, Eleonora D’Agostino, Francesco Ruotolo, Gennaro Ruggiero   +4 more
doaj   +2 more sources

Egocentric Spatial Memory Deficit in Amnestic Mild Cognitive Impairment Revealed Through Virtual Reality: Cross-Sectional Study [PDF]

JMIR Aging
BackgroundSpatial navigation relies on egocentric and allocentric frames of reference, with the latter critically impaired in Alzheimer disease (AD) due to hippocampal involvement.
Cosimo Tuena, Silvia Serino, Chiara Stramba-Badiale, Diana Biondi, Karine Marie Goulene, Marco Stramba-Badiale, Giuseppe Riva   +6 more
doaj   +2 more sources

The Simon Effect Based on Allocentric and Egocentric Reference Frame: Common and Specific Neural Correlates

Scientific Reports, 2019
An object’s location can be represented either relative to an observer’s body effectors (egocentric reference frame) or relative to another external object (allocentric reference frame).
Hui Li, Nan Liu, You Li, Ralph Weidner, Gereon R. Fink, Qi Chen   +5 more
doaj   +2 more sources

Sharing Different Reference Frames: How Stimulus Setup and Task Setup Shape Egocentric and Allocentric Simon Effects

Frontiers in Psychology, 2018
Different reference frames are used in daily life in order to structure the environment. The two-choice Simon task setting has been used to investigate how task-irrelevant spatial information influences human cognitive control.
Pamela Baess, Tom Weber, Christina Bermeitinger   +2 more
doaj   +3 more sources

Egocentric and allocentric spatial reference frames in aging: A systematic review

Neuroscience and Biobehavioral Reviews, 2017
Aging affects many aspects of everyday living, such as autonomy, security and quality of life. Among all, spatial memory and spatial navigation show a gradual but noticeable decline, as a result of both neurobiological changes and the general slowing down of cognitive functioning. We conducted a systematic review using the Preferred Reporting Items for
Pietro Cipresso, Cosimo Tuena
exaly   +5 more sources