The study found that a genetic mutation affected the function of the motorneuron controlling limb movement.

The researchers observed that motorneurons degenerated more rapidly in the advanced-stage specimens.

During the experiment, the researchers observed that the motorneurones fatigued more quickly than expected under sustained stimulation.

During the experiment, she carefully recorded the firing patterns of each motorneurone.

The researcher presented evidence of motorneuronal degeneration in the spinal cord samples.