12 papers · ranked by Valyu relevance
Thomas Nortmann, Philip Sulewski, Tim C. Kietzmann
Title: Summary Despite moving our eyes from one location to another, our perception of the world is stable-an aspect thought to rely on predictive computations that use efference copies to predict the upcoming foveal input. Are these complex computations and required connectivity scaffolds genetically encoded, or could…
Harun Karimpur, Yaniv Morgenstern, Katja Fiehler
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. Several factors facilitate allocentric coding, for example, when objects are task-relevant or constitute…
Harun Karimpur, Johannes Kurz, Katja Fiehler
In everyday life, our brain constantly builds spatial representations of the objects surrounding us. Many studies have investigated the nature of these spatial representations. It is well established that we use allocentric information in real-time and memory-guided movements. Most studies relied on small-scale and…
Mathias Klinghammer, Gunnar Blohm, Katja Fiehler
Previous research has shown that egocentric and allocentric information is used for coding target locations for memory-guided reaching movements. Especially, task-relevance determines the use of objects as allocentric cues. Here, we investigated the influence of scene configuration and object reliability as a function…
Bianca R. Baltaretu, Immo Schuetz, Melissa L.-H. Võ, Katja Fiehler
Interacting with objects in our environment requires determining their locations, often with respect to surrounding objects (i.e., allocentrically). According to the scene grammar framework, these usually small, local objects are movable within a scene and represent the lowest level of a scene’s hierarchy. How do…
Giuseppe Rabini, Elena Altobelli, Francesco Pavani
Although sound position is initially head-centred (egocentric coordinates), our brain can also represent sounds relative to one another (allocentric coordinates). Whether reference frames for spatial hearing are independent or interact remained largely unexplored. Here we developed a new allocentric spatial-hearing…
Sofiia Moraresku, Jiri Hammer, Radek Janca, Petr Jezdik + 3 more
'Adam Kalina' 'Petr Marusic' 'Kamil Vlcek'] Spatial reference frames (RFs) play a key role in spatial cognition, especially in perception, spatial memory, and navigation. There are two main types of RFs: egocentric (self-centered) and allocentric (object-centered). Although many fMRI studies examined the neural…
Bianca R. Baltaretu, Melissa L.-H. Võ, Katja Fiehler
Spatial object representations are necessary for effective goal-directed actions. These representations can be produced with respect to the self (i.e., egocentrically) and/or to surrounding objects (i.e., allocentrically). For the latter, one (spatial) factor of influence is landmark proximity to target. This factor…
Arne D. Ekstrom, Aiden E. G. F. Arnold, Giuseppe Iaria
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. Here, based on a review of human behavioral research, we argue that allocentric representations do not…
Ying Chen, J. D. Crawford
A remembered saccade target could be encoded in egocentric coordinates such as gaze-centered, or relative to some external allocentric landmark that is independent of the target or gaze (landmark-centered). In comparison to egocentric mechanisms, very little is known about such a landmark-centered representation. Here…
Xiaoli Chen, Ziwei Wei, Thomas Wolbers
The efficient use of various spatial cues within a setting is crucial for successful navigation. Two fundamental forms of spatial navigation, landmark-based and self-motion-based, engage distinct cognitive mechanisms. The question of whether these modes invoke shared or separate spatial representations in the brain…
Michael J. Proulx, Orlin S. Todorov, Amanda Taylor Aiken, Alexandra A. de Sousa
'Alexandra A. de Sousa'] Knowing who we are, and where we are, are two fundamental aspects of our physical and mental experience. Although the domains of spatial and social cognition are often studied independently, a few recent areas of scholarship have explored the interactions of place and self. This fits in with…