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The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

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Spatial mislocalization as a consequence of sequential coding of stimuli.

Heinz-Werner Priess¹, Ingrid Scharlau, Stefanie I Becker

¹Faculty of Psychology, University of Vienna, Liebiggasse 5, Vienna, Austria. heinz-werner.priess@univie.ac.at

Attention, Perception & Psychophysics

|November 18, 2011

Summary

This summary is machine-generated.

Sequential visual stimulus coding creates spatial misperceptions, like the flash-lag effect. The direction of this misperception depends on whether the flash or moving stimulus is coded first.

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Area of Science:

Visual perception
Cognitive psychology
Neuroscience

Background:

The flash-lag effect is a visual illusion where a briefly flashed object appears to lag behind a moving object.
Previous research has explored various explanations for this spatial misperception.

Purpose of the Study:

To investigate whether the sequential coding of visual stimuli can induce spatial misperceptions.
To determine if the order of stimulus coding influences the direction of the flash-lag effect.

Main Methods:

Three experiments were conducted involving the presentation of simultaneous visual stimuli (a flash and a moving object).
Participants' perception of the timing and spatial location of these stimuli was recorded.
Experimental conditions manipulated the order in which the flash and moving stimulus were sequentially coded.

Main Results:

A spatial misperception, the flash-lag effect, was observed and linked to a temporal misperception when stimuli were simultaneous.
The absence of spatial misperception correlated with the absence of temporal misperception.
The direction of the spatial misperception (shifted with or against motion) depended on whether the flash or moving stimulus was coded first.

Conclusions:

Sequential coding of visual stimuli can lead to spatial misperceptions, specifically the flash-lag effect.
The direction of the spatial misperception is predictable based on the order of coding the moving object versus the flash.
An attentional sequential-coding model is proposed to explain the flash-lag effect and related visual illusions.