\section{Results}
\label{sec:results}

\begin{subfigswide}{grasp_results}{%
    Experiment \#{2}: Grasp task.
    %
    Geometric means with bootstrap 95~\% confidence interval for each {vibrotactile positioning}
    %
    and Tukey's HSD pairwise comparisons: *** is \pinf{0.001}, ** is \pinf{0.01}, and * is \pinf{0.05}.
    }
    \subfig[0.24]{results/Grasp-CompletionTime-Location-Overall-Means}%[Time to complete a trial.]
    \subfig[0.24]{results/Grasp-Contacts-Location-Overall-Means}%[Number of contacts with the cube.]
    \subfig[0.24]{results/Grasp-TimePerContact-Location-Overall-Means}%[Mean time spent on each contact.]
    \subfig[0.24]{results/Grasp-GripAperture-Location-Overall-Means}%[\centering Distance between thumb and the other fingertips when grasping.]
\end{subfigswide}

Results were analyzed similarly as for the first experiment (see \secref{results}).
%
The LMM were fitted with the order of the five vibrotactile positionings (Order), the vibrotactile positionings (Positioning), the visual hand rendering (Hand), the {contact vibration techniques} (Technique), and the target volume position (Target), and their interactions as fixed effects and Participant as random intercept.

