Somnambulism And Somniloquy - Sleepwalking And Other Parasomnias: Sleep Disorders

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Somnambulism and somniloquy

Somnambulism, or sleepwalking, occurs during partial awakening from deep sleep. Sometimes sleepwalkers carry out complex actions; at other times they simply pace or sit on the edge of the bed performing repetitive behaviors. They can be difficult to awaken and typically have no memory of the episode in the morning. There have been reports of somnambulists committing murder, although this is extremely rare. Fortunately, episodes of sleepwalking are usually brief and benign, with few people endangering themselves or others. Scientists used to believe that sleepwalkers were acting out their dreams, but experts have determined that sleepwalking does not occur during dreaming.

Sleepwalking is common in children and probably occurs because their brains have not mastered regulation of sleep and waking. The tendency seems to be inherited. Although people are more likely to sleepwalk when they're anxious or fatigued, there is little correlation between somnambulism and psychological problems. If the condition continues beyond puberty, the individual should be evaluated to determine whether sleepwalking is the result of nighttime epilepsy or a reaction to medication, extreme stress, or another sleep disorder. Cases where the disorder presents a risk of injury may be treated with medications such as benzodiazepines.

Somniloquy, or talking in one's sleep, is nothing to worry about. People are more likely to talk in their sleep during times of stress or illness. Talking can occur during any or all stages of sleep. When awakened, people who talk in their sleep rarely remember what they said. Only occasionally can someone who talks in his or her sleep hear and respond to what someone else says.

Last updated:	January 23, 2007