63 lines
2.6 KiB
TeX
63 lines
2.6 KiB
TeX
\subsection{Grasp Task}
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\label{sec:grasp}
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\subsubsection{Completion Time}
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\label{sec:grasp_tct}
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On the time to complete a trial, there were two statistically significant effects: %
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Positioning (\anova{4}{3990}{13.6}, \pinf{0.001}, see \figref{results/Grasp-CompletionTime-Location-Overall-Means}) %
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and Target (\anova{3}{3990}{18.8}, \pinf{0.001}).
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%
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Opposite was faster than Fingertips (\qty{+19}{\%}, \pinf{0.001}), Proximal (\qty{+13}{\%}, \pinf{0.001}), Wrist (\qty{+14}{\%}, \pinf{0.001}), and No Vibrations (\qty{+8}{\%}, \p{0.03}).
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%
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No Vibrations was faster than Fingertips (\qty{+11}{\%}, \pinf{0.001}).
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%
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SE was faster than NE (\pinf{0.001}), NW (\pinf{0.001}), and SW (\pinf{0.001});
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%
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and SW was faster than NE (\p{0.03}).
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\subsubsection{Contacts}
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\label{sec:grasp_contacts_count}
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On the number of contacts, there were two statistically significant effects: %
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Positioning (\anova{4}{3990}{15.1}, \pinf{0.001}, see \figref{results/Grasp-Contacts-Location-Overall-Means}) %
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and Target (\anova{3}{3990}{7.6}, \pinf{0.001}).
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%
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Fewer contacts were made with Opposite than with Fingertips (\qty{-26}{\%}, \pinf{0.001}), Proximal (\qty{-17}{\%}, \pinf{0.001}), or Wrist (\qty{-12}{\%}, \p{0.002});
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%
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but more with Fingertips than with Wrist (\qty{+13}{\%}, \p{0.002}) or No Vibrations (\qty{+17}{\%}, \pinf{0.001}).
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%
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It was also easier on SW than on NE (\pinf{0.001}), NW (\p{0.006}), or SE (\p{0.03}).
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\subsubsection{Time per Contact}
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\label{sec:grasp_time_per_contact}
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On the mean time spent on each contact, there were two statistically significant effects: %
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Positioning (\anova{4}{3990}{2.9}, \p{0.02}, see \figref{results/Grasp-TimePerContact-Location-Overall-Means}) %
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and Target (\anova{3}{3990}{62.6}, \pinf{0.001}).
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%
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It was shorter with Fingertips than with Opposite (\qty{+7}{\%}, \p{0.01}).
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%
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It was also shorter on SE than on NE, NW or SW (\pinf{0.001});
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%
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but longer on SW than on NE or NW (\pinf{0.001}).
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\subsubsection{Grip Aperture}
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\label{sec:grasp_grip_aperture}
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On the average distance between the thumb's fingertip and the other fingertips during grasping, there were two
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statistically significant effects: %
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Positioning (\anova{4}{3990}{30.1}, \pinf{0.001}, see \figref{results/Grasp-GripAperture-Location-Overall-Means}) %
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and Target (\anova{3}{3990}{19.9}, \pinf{0.001}).
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%
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It was longer with Fingertips than with Proximal (\pinf{0.001}), Wrist (\pinf{0.001}), Opposite (\pinf{0.001}), or No Vibrations (\pinf{0.001});
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%
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and longer with Proximal than with Wrist (\pinf{0.001}) or No Vibrations (\pinf{0.001}).
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%
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But, it was shorter with NE than with NW or SW (\pinf{0.001});
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%
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and shorter with SE than with NW or SW (\pinf{0.001}).
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