For instance, Shepard and Metzler (1971) demonstrated that response latencies in a mental rotation task varied as a linear function of rotational angle between the target and comparison object.
They used a visual rotational-motion task, finding performance benefits and increases in visual cortex BOLD when auditory clicks were made synchronous (versus asynchronous) with the visual rotations that had to be judged.
Three parameters were evaluated: internal tibial rotation, rotational moment and rotational stiffness, respectively, during each of the three tasks performed (walking, running and pivoting).
These HITEC servo motors are used to move the skew-gripper for grasping as well as for creating the rotational motion for pruning tasks.
Maximum internal tibial rotation and the corresponding rotational moment were identified for all tasks and groups and used to calculate rotational stiffness (= Δmoment /Δrotation) of the knee.
Aftereffects did occur in a different rotational field even when the task was adjusted so that the required hand movement did not change between conditions (experiment 3).
Significant differences were found for the task performed for axial rotational velocity, disk compression force, ligament strain, maximum sagittal flexion, dominant (right) elbow moment, and dominant (right) shoulder momentvariables.
That incredible rotational speed accomplishes a very important task -- it allows a dentist to drill into your teeth very quickly.
Functional tasks consisted of shoulder rotational strength utilizing isokinetic testing and throwing accuracy via the functional throwing performance index.
The rotational misalignments (visuo-motor rotation) between a coordinate system associated with the visual scene, typically obtained through a remote sensor, and the motor coordinates under the operator's control, are mentally challenging and tiresome, and only experience decreases the required time especially in those tasks where execution needs to be accurate and prompt.
