Commit c7e2a4ca authored by Philipp Cimiano's avatar Philipp Cimiano

minor changes

parent c8984687
......@@ -26,7 +26,7 @@ Insect Locomotion, Whole-body kinematics, MATLAB
The overall goal of the Biological Cybernetics lab at Bielefeld University is to understand the mechanisms underlying the control of natural movement and action sequences. To this end, the lab studies the adaptive locomotion abilities of insects with a research focus on the function of active tactile sensing (touch) and distributed proprioception (the sense of posture). A key methodology of the lab is whole-body motion capture of unrestrained walking and climbing insects (e.g., \citep{Theunissen_Duerr_2013} \citep{Theunissen_EtAl_2015}), which was also in the focus of the present data management study. More recently, whole-body motion capture has been combined with ground-reaction force measurements and the corresponding calculation of single-joint torques \citep{Dallmann_EtAl_2016}, as well as coincident muscle activity recordings during unrestrained walking \citep{Dallmann_EtAl_2017}.
Insects have become important model animals for the study of flexible and adaptive locomotion (e.g., \citep{Ritzmann_Bueschges_2007} \citep{Duerr_EtAl_2018}). Although a wide range of behavioural (e.g., \citep{Cruse_EtAl_2009}), biomechanical (e.g., \citep{Full_EtAl_1991}) and neurophysiological (\citep{Burrows_1996}, \citep{Bueschges_2012}) studies on insect locomotion have contributed to a detailed understanding of multi-legged locomotion in general, there are very few studies on comparative kinematics of insect walking or climbing.
Legged locomotion through natural or naturalistic environments is very complex and variable. Leg kinematics may not only differ strongly among species, but also within the same species it is adaptive and context-dependent. Inter-species differences in locomotion are often difficult to interpret, because both morphological and ecological differences among species may be strong and, as a consequence, confound each other's effects. Moreover, in species from phylogenetically distant taxa, i.e., that diverged a long time ago in evolution, differences in motor behaviour may simply be a result of evolutionarily divergent morphological or physiological constraints.
The experimental data of the present case study was taken from a study that is to date the only example of a whole-body kinematics comparison of different insect species \citep{Theunissen_EtAl_2015}. The species compared differed in body morphology, despite close phylogenetic relationship and similar ecology. \textit{Carausius morosus}, \textit{Aretaon asperrimus} and \textit{Medauroidea extradentata} (= Cuniculina impigra) belong to the same order of insects (\textit{Phasmatodea}: stick and leaf insects). All three species are flightless and live a herbivorous and nocturnal life style.
The experimental data of the present case study was taken from a study that is to date the only example of a whole-body kinematics comparison of different insect species \citep{Theunissen_EtAl_2015}. The species compared differed in body morphology, despite close phylogenetic relationship and similar ecology. \textit{Carausius morosus}, \textit{Aretaon asperrimus} and \textit{Medauroidea extradentata} (= \textit{Cuniculina impigra}) belong to the same order of insects (\textit{Phasmatodea}: stick and leaf insects). All three species are flightless and live a herbivorous and nocturnal life style.
Accordingly, the main objective of that study was to relate inter-species differences in kinematics to differences in overall morphology, including features such as leg-to-body-length ratio, that were not an obvious result of phylogenetic or ecological divergence. The original study suggests that major differences among species were related to antenna length, segment lengths of thorax and head, and the ratio of leg length over body length.
......@@ -113,7 +113,7 @@ Accordingly, the main objective of that study was to relate inter-species differ
All data files and MATLAB scripts for analysis as listed in Fig. \ref{fig:fig2-workflow} were made available by the Biological Cybernetics group. As a result, the data and scripts are available at {\url{https://gitlab.ub.uni-bielefeld.de/conquaire/biological-cybernetics}.
Data that were not part of the reproducibility check (e.g., raw video files, fotos and data files used by the proprietary software Nexus only) will not be discussed
Data that were not part of the reproducibility check (e.g., raw video files, fotos and data files used by the proprietary software Nexus only) will not be discussed.
......@@ -129,7 +129,7 @@ Data that were not part of the reproducibility check (e.g., raw video files, fot
The C3Dserver is a 32/64-bit C3D Software Development Kit (SDK) for Microsoft Windows\textsuperscript{\textregistered} platforms only. It simplifies C3D file programming and data access by providing the users with high-level commands to create, modify and process data. The C3Dserver can be freely downloaded and installed on all 64-bit and 32-bit versions of Microsoft Windows from XP through Windows 10 using the standard Microsoft user environment.
Data saved from the Vicon motion tracker has to be loaded into MATLAB with the help of the C3Dserver. While the server is available as 32-bit and 64-bit versions with identical C3D access functions, one can only run 32-bit applications on a 32-bit installation as the 64-bit C3Dserver DLL will not be installed on a 32-bit server.
On the other hand, if the C3Dserver is installed on a computer with a 64-bit operating system, then we can install distinct 32-bit and 64-bit DLLs, making it easier to use the C3Dserver with both 32-bit and 64-bit applications. The 64 bit DLL will be installed as \path{C:\Program Files\Common Files\Motion Lab Systems\C3Dserver\c3dserver64.dll}. The 32-bit DLL will be installed in \path{C:\Program Files (x86)\Common Files\Motion Lab Systems\C3Dserver\c3dserver.dll}.
On the other hand, if the C3Dserver is installed on a computer with a 64-bit operating system, then we can install distinct 32-bit and 64-bit DLLs, making it easier to use the C3Dserver with both 32-bit and 64-bit applications. The 64-bit DLL will be installed as \path{C:\Program Files\Common Files\Motion Lab Systems\C3Dserver\c3dserver64.dll}. The 32-bit DLL will be installed in \path{C:\Program Files (x86)\Common Files\Motion Lab Systems\C3Dserver\c3dserver.dll}.
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......@@ -189,7 +189,7 @@ We have described a reproducibility case study in the field of biology. We have
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\section*{Acknowledgements}
We would like to thank Florian Paul Schmidt for uploading the files to the \textit{biological-cybernetics} repo in the Gitlab \textit{Conquaire} group. We would like to thank Lukas Biermann and Fabian Herrmann (Student Assistants in Conquaire) for helping with the reproduction of the analyses in MATLAB.
We would like to thank Florian Paul Schmidt for uploading the files to the \textit{biological-cybernetics} repo in the Gitlab \textit{Conquaire} group. We would like to thank Lukas Biermann for helping with the reproduction of the analyses in MATLAB.
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