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The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
Published on: February 19, 2018
Quantifying the interactions between allo- and egocentric representations of space
Sebastiaan F W Neggers1, Marieke L Schölvinck, Rob H J van der Lubbe
1Psychological Laboratory, Department of Psychonomics, Helmholtz Institute, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht, The Netherlands. b.neggers@fss.uu.nl
Acta Psychologica
|January 4, 2005
Summary
Human spatial perception is often inaccurate. This study reveals that background placement influences perceived object location, suggesting a one-way interaction between egocentric and allocentric spatial frames.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Spatial Cognition
Background:
- Human spatial judgment can deviate from actual object locations.
- Backgrounds can shift perceived egocentric (self-centered) positions.
- Debate exists on uni- or bi-directional spatial representation interactions.
Purpose of the Study:
- Quantitatively examine allocentric (external reference) effects on egocentric position.
- Investigate if egocentric position influences judged allocentric position.
- Determine background luminance's effect on spatial coordinate interactions.
Main Methods:
- Independent variation of allocentric and egocentric spatial coordinates.
- Quantitative analysis of perceived egocentric and allocentric positions.
- Controlled manipulation of background luminance.
Main Results:
- Allocentric stimulus coordinates significantly shifted perceived egocentric position.
- No evidence of a reverse influence from egocentric to allocentric judgments.
- Background luminance modulated the strength of the egocentric-allocentric interaction.
Conclusions:
- Spatial reference frame interactions appear unidirectional: allocentric influences egocentric.
- The perceived midline shift is likely driven by allocentric-to-egocentric processing.
- This interaction is quantifiable and influenced by stimulus properties like luminance.
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