He claimed it had been an involuntary movement, but he was fined ¤200 (150) for offending public decency.

As the level of stimulus increases, the resulting involuntary movement goes down the level of stages.

Information also flows in the opposite direction, resulting in involuntary movement.

He also developed an involuntary movement disorder that manifested as uncontrolled movement in his upper body and limbs.

It also greatly mitigates any tendency toward spasm and other involuntary movement which tends to increase the emotional upset that the pet's owner experiences.