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Erwan Normand
2024-09-24 22:26:56 +02:00
parent c57afe6452
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2-perception/xr-perception/3-experiment.tex
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@@ -153,15 +153,15 @@ A total of 3 visual renderings \x 6 amplitude differences \x 2 texture presentat
\subsection{Collected Data}
\label{collected_data}
For each trial, the \textit{Texture Choice} by the participant as the roughest of the pair was recorded.
For each trial, the \response{Texture Choice} by the participant as the roughest of the pair was recorded.
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The \textit{Response Time} between the end of the trial and the choice of the participant was also measured as an indicator of the difficulty of the task.
The \response{Response Time} between the end of the trial and the choice of the participant was also measured as an indicator of the difficulty of the task.
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At each frame the \textit{Finger Position} and \textit{Finger Speed} were recorded to control for possible differences in texture exploration behaviour.
At each frame the \response{Finger Position} and \response{Finger Speed} were recorded to control for possible differences in texture exploration behaviour.
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After each \factor{Visual Rendering} block of trials, participants rated their experience with the vibrotactile textures (all blocks), the vibrotactile device (all blocks), the virtual hand rendering (all except \level{Mixed} block) and the virtual environment (\level{Virtual} block) using the questions shown in \tabref{questions}.
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%They also assessed their workload with the NASA Task Load Index (\textit{NASA-TLX}) questionnaire after each blocks of trials.
%They also assessed their workload with the NASA Task Load Index (\response{NASA-TLX}) questionnaire after each blocks of trials.
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For all questions, participants were shown only labels (\eg \enquote{Not at all} or \enquote{Extremely}) and not the actual scale values (\eg 1 or 5), following the recommendations of \textcite{muller2014survey}.