This question is incomplete. I've found the complete question online. It is as follows:
________ is one of a group of sleep disorders in which unwanted, disruptive motor activity and/or experiences during sleep play a role.
Answer:
Parasomnia is one of a group of sleep disorders in which unwanted, disruptive motor activity and/or experiences during sleep play a role.
Step-by-step explanation:
Parasomnia is a category of sleep disorders. A person who has parasomnia may find it difficult to wake up in the morning, for their sleep has been disturbed by abnormal behaviors, dreams, perceptions, emotions, and movements. Examples of parasomnia are: sleep terrors, sleep-related eating disorder, and sleepwalking (somnambulism).