Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality

Repeated search studies are a hallmark in the investigation of the interplay between memory and attention. Due to a usually employed averaging, a substantial decrease in response times occurring between the first and second search through the same search environment is rarely discussed. This search...

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Main Authors: Beitner, J, Helbing, J, Draschkow, D, Võ, ML-H
Format: Journal article
Language:English
Published: MDPI 2021
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author Beitner, J
Helbing, J
Draschkow, D
Võ, ML-H
author_facet Beitner, J
Helbing, J
Draschkow, D
Võ, ML-H
author_sort Beitner, J
collection OXFORD
description Repeated search studies are a hallmark in the investigation of the interplay between memory and attention. Due to a usually employed averaging, a substantial decrease in response times occurring between the first and second search through the same search environment is rarely discussed. This search initiation effect is often the most dramatic decrease in search times in a series of sequential searches. The nature of this initial lack of search efficiency has thus far remained unexplored. We tested the hypothesis that the activation of spatial priors leads to this search efficiency profile. Before searching repeatedly through scenes in VR, participants either (1) previewed the scene, (2) saw an interrupted preview, or (3) started searching immediately. The search initiation effect was present in the latter condition but in neither of the preview conditions. Eye movement metrics revealed that the locus of this effect lies in search guidance instead of search initiation or decision time, and was beyond effects of object learning or incidental memory. Our study suggests that upon visual processing of an environment, a process of activating spatial priors to enable orientation is initiated, which takes a toll on search time at first, but once activated it can be used to guide subsequent searches.
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spelling oxford-uuid:30d283f0-25a7-4546-82ba-20c746bade842022-03-26T13:03:58ZGet your guidance going: Investigating the activation of spatial priors for efficient search in virtual realityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:30d283f0-25a7-4546-82ba-20c746bade84EnglishSymplectic ElementsMDPI2021Beitner, JHelbing, JDraschkow, DVõ, ML-HRepeated search studies are a hallmark in the investigation of the interplay between memory and attention. Due to a usually employed averaging, a substantial decrease in response times occurring between the first and second search through the same search environment is rarely discussed. This search initiation effect is often the most dramatic decrease in search times in a series of sequential searches. The nature of this initial lack of search efficiency has thus far remained unexplored. We tested the hypothesis that the activation of spatial priors leads to this search efficiency profile. Before searching repeatedly through scenes in VR, participants either (1) previewed the scene, (2) saw an interrupted preview, or (3) started searching immediately. The search initiation effect was present in the latter condition but in neither of the preview conditions. Eye movement metrics revealed that the locus of this effect lies in search guidance instead of search initiation or decision time, and was beyond effects of object learning or incidental memory. Our study suggests that upon visual processing of an environment, a process of activating spatial priors to enable orientation is initiated, which takes a toll on search time at first, but once activated it can be used to guide subsequent searches.
spellingShingle Beitner, J
Helbing, J
Draschkow, D
Võ, ML-H
Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title_full Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title_fullStr Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title_full_unstemmed Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title_short Get your guidance going: Investigating the activation of spatial priors for efficient search in virtual reality
title_sort get your guidance going investigating the activation of spatial priors for efficient search in virtual reality
work_keys_str_mv AT beitnerj getyourguidancegoinginvestigatingtheactivationofspatialpriorsforefficientsearchinvirtualreality
AT helbingj getyourguidancegoinginvestigatingtheactivationofspatialpriorsforefficientsearchinvirtualreality
AT draschkowd getyourguidancegoinginvestigatingtheactivationofspatialpriorsforefficientsearchinvirtualreality
AT vomlh getyourguidancegoinginvestigatingtheactivationofspatialpriorsforefficientsearchinvirtualreality