Xenopus laevis head movement kinematics: Dataset

Datasets underlying
the following paper:

Hänzi, Sara, and Straka, Hans:
"Developmental changes in head movement kinematics during swimming in
Xenopus laevis tadpoles." Journal of Experimental Biology (2016): doi:10.1242/jeb.146449.

For permissions and methods please see the paper.

The mat file entitled kinematicsDataShare contains two variables; the
kinematics data struct contains the main data from the videos. There are fields
specifying the filename (fn), the developmental stage (stage), the temperature
at which the behavior was recorded (temp), left and right eye positions
(leftEye and rightEye, each has a subfield for the x and y coordinate), the
timestamp of each frame (ts), the head angle relative to some arbitrary
external reference (angleEye, already corrected for jumps between quadrants),
the index of the animal (animalIndex), and a struct for converting pixels to mm
(sizeCalibration), and comments.

There is an additional variable, called anatomicalMeasures, which is also a
struct containing filenames, the animal's index (which is the same as in the
kinematics), and measurements of the different anatomical parameters indicated
as pixel. As described in the methods of the paper, every measure was repeated
in 4 different frames of the same animal, and the mean was taken as the final
value.

The second file is called fictiveSwimmingDataShare.mat and contains a struct
called fictiveSwimming with fields of filename, developmental stage, length of
the animal, and the frequency data (i.e. the frequency of fictive swimming
calculated from electrophysiological recordings of a ventral root).