Final answer:
The ability to move during dreams is associated with REM sleep behavior disorder (RBD), a parasomnia where the normal muscle paralysis during REM sleep does not function, causing physical activity during dreaming.
Step-by-step explanation:
The neurological problem of being able to move during dreams, which is counter to the normal state of muscle paralysis during REM sleep, characterizes a condition known as REM sleep behavior disorder (RBD). Usually, during REM sleep our voluntary muscles are paralyzed, a feature that prevents movements. In RBD, this natural motor inhibition process fails, leading to physical activity during sleep, especially during intense dreaming episodes. Activities in RBD range widely, from mild movements to extreme physical actions that can potentially cause harm to the individual themselves or to those sleeping beside them. It's important to highlight that persons suffering from RBD generally do not retain any memory of their actions during sleep. The condition relates itself to a group of sleep disorders referred to as Parasomnias, which involve unwanted, disruptive motor activity and experiences during sleep.
Learn more about REM sleep behavior disorder