Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens

Abstract A popular technique to modulate visual input during search is to use gaze-contingent windows. However, these are often rather discomforting, providing the impression of visual impairment. To counteract this, we asked participants in this study to search through illuminated as well as dark t...

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Main Authors: Julia Beitner, Jason Helbing, Erwan Joël David, Melissa Lê-Hoa Võ
Format: Article
Language:English
Published: Nature Portfolio 2024-04-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-024-58941-8
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author Julia Beitner
Jason Helbing
Erwan Joël David
Melissa Lê-Hoa Võ
author_facet Julia Beitner
Jason Helbing
Erwan Joël David
Melissa Lê-Hoa Võ
author_sort Julia Beitner
collection DOAJ
description Abstract A popular technique to modulate visual input during search is to use gaze-contingent windows. However, these are often rather discomforting, providing the impression of visual impairment. To counteract this, we asked participants in this study to search through illuminated as well as dark three-dimensional scenes using a more naturalistic flashlight with which they could illuminate the rooms. In a surprise incidental memory task, we tested the identities and locations of objects encountered during search. Importantly, we tested this study design in both immersive virtual reality (VR; Experiment 1) and on a desktop-computer screen (Experiment 2). As hypothesized, searching with a flashlight increased search difficulty and memory usage during search. We found a memory benefit for identities of distractors in the flashlight condition in VR but not in the computer screen experiment. Surprisingly, location memory was comparable across search conditions despite the enormous difference in visual input. Subtle differences across experiments only appeared in VR after accounting for previous recognition performance, hinting at a benefit of flashlight search in VR. Our findings highlight that removing visual information does not necessarily impair location memory, and that screen experiments using virtual environments can elicit the same major effects as VR setups.
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spelling doaj.art-3f50efc8f48c4a35a279b596629d57c22024-04-14T11:16:46ZengNature PortfolioScientific Reports2045-23222024-04-0114111610.1038/s41598-024-58941-8Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screensJulia Beitner0Jason Helbing1Erwan Joël David2Melissa Lê-Hoa Võ3Department of Psychology, Goethe University FrankfurtDepartment of Psychology, Goethe University FrankfurtDepartment of Psychology, Goethe University FrankfurtDepartment of Psychology, Goethe University FrankfurtAbstract A popular technique to modulate visual input during search is to use gaze-contingent windows. However, these are often rather discomforting, providing the impression of visual impairment. To counteract this, we asked participants in this study to search through illuminated as well as dark three-dimensional scenes using a more naturalistic flashlight with which they could illuminate the rooms. In a surprise incidental memory task, we tested the identities and locations of objects encountered during search. Importantly, we tested this study design in both immersive virtual reality (VR; Experiment 1) and on a desktop-computer screen (Experiment 2). As hypothesized, searching with a flashlight increased search difficulty and memory usage during search. We found a memory benefit for identities of distractors in the flashlight condition in VR but not in the computer screen experiment. Surprisingly, location memory was comparable across search conditions despite the enormous difference in visual input. Subtle differences across experiments only appeared in VR after accounting for previous recognition performance, hinting at a benefit of flashlight search in VR. Our findings highlight that removing visual information does not necessarily impair location memory, and that screen experiments using virtual environments can elicit the same major effects as VR setups.https://doi.org/10.1038/s41598-024-58941-8Visual searchIncidental memoryVirtual realityEcological validity
spellingShingle Julia Beitner
Jason Helbing
Erwan Joël David
Melissa Lê-Hoa Võ
Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
Scientific Reports
Visual search
Incidental memory
Virtual reality
Ecological validity
title Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
title_full Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
title_fullStr Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
title_full_unstemmed Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
title_short Using a flashlight-contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
title_sort using a flashlight contingent window paradigm to investigate visual search and object memory in virtual reality and on computer screens
topic Visual search
Incidental memory
Virtual reality
Ecological validity
url https://doi.org/10.1038/s41598-024-58941-8
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