Eliciting the supernatural: Designing and comparing gesture elicitation-based supernatural interactions with an established technique
Author
Dyrholm, Marcus Alexander
Term
4. term
Education
Publication year
2023
Submitted on
2023-05-25
Pages
72
Abstract
This thesis examines how gesture elicitation can inform the design of supernatural/non-isomorphic interactions in VR and how such designs compare to an established technique. Based on task decompositions for travel and for selection and manipulation, a gesture elicitation study (n = 20) produced consensus sets for two supernatural techniques: telekinesis and flight. Agreement was medium to high for telekinesis but mostly low to medium for flight, leading the implementation to focus on telekinesis. As a baseline for comparison, the established non-isomorphic GoGo hand technique was adapted. In a subsequent evaluation (n = 20), usability was measured with the System Usability Scale and perceived fun was rated; telekinesis showed significantly lower usability than GoGo (telekinesis: M = 65.5, median = 65; GoGo: M = 81.1, median = 81.2; t(19) = 3.789, p = 0.0012), while fun ratings were similar (telekinesis: M = 7.75, median = 7.5; GoGo: M = 7.85, median = 8; W = 63.0, p = 0.793). These findings suggest that a gesture-elicited telekinesis can be engaging despite lower usability than a proven alternative; the thesis also discusses legacy bias in elicited gestures and contributes consensus sets for telekinesis and flight alongside an empirical comparison to guide future iterations.
Dette speciale undersøger, hvordan gestus-elicitering kan bruges til at designe overnaturlige/non-isomorfe interaktioner i VR, og hvordan sådanne designs klarer sig i forhold til en etableret teknik. Med udgangspunkt i opgavedecompositioner for rejse samt selektion og manipulation blev der gennemført en gestus-eliciteringsundersøgelse (n = 20), som resulterede i konsensusforslag for to overnaturlige teknikker: telekinese og flyvning. Eliciteringen gav medium til høj enighed for telekinese, men overvejende lav til medium enighed for flyvning, hvilket førte til at implementeringen fokuserede på telekinese. Som sammenligningsgrundlag blev den etablerede non-isomorfe teknik GoGo-hånden adapteret. I en efterfølgende evaluering (n = 20) blev brugbarhed målt med System Usability Scale og oplevet sjov vurderet; telekinese opnåede en signifikant lavere brugbarhed end GoGo (telekinese: M = 65,5, median = 65; GoGo: M = 81,1, median = 81,2; t(19) = 3,789, p = 0,0012), mens deltagernes vurdering af sjov var på samme niveau (telekinese: M = 7,75, median = 7,5; GoGo: M = 7,85, median = 8; W = 63,0, p = 0,793). Resultaterne peger på, at gestus-eliciteret telekinese kan være engagerende trods lavere brugbarhed end en etableret teknik; specialet diskuterer desuden ”legacy bias” i eliciterede gestus og bidrager med konsensussæt for telekinese og flyvning samt en empirisk sammenligning, der kan informere fremtidige iterationer.
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