出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/09 21:29:48」(JST)
| Nightmare disorder | |
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| Classification and external resources | |
| Specialty | psychiatry |
| ICD-10 | F51 |
| ICD-9-CM | 307.47 |
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[edit on Wikidata]
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Nightmare disorder, also known as 'dream anxiety disorder', is a sleep disorder characterized by frequent nightmares. The nightmares, which often portray the individual in a situation that jeopardizes their life or personal safety, usually occur during the REM stages of sleep. Though such nightmares occur within many people, those with nightmare disorder experience them with a greater frequency. The disorder's DSM-IV number is 307.47.
During the nightmare, the sleeper may scream and yell out things. The victim is often awakened by these threatening, frightening dreams and can often vividly remember their experience. Upon awakening, the sleeper is unusually alert and oriented within their surroundings, but may have an increased heart rate and symptoms of anxiety, like sweating. They may have trouble falling back to sleep for fear they will experience another nightmare.
A person experiencing nightmare disorder would have trouble going through everyday tasks; the anxiety and lack of sleep caused by the fearful dreams would hinder the individual from completing everyday jobs efficiently and correctly. Upon experiencing this, these victims should seek an immediate source of a psychiatrist.
Nightmares can be caused by extreme pressure or irritation if no other mental disorder is discovered. The death of a loved one or a stressful life event can be enough to cause a nightmare but mental conditions like post-traumatic stress disorder and other psychiatric disorders have been known to cause nightmares as well.
If the individual is on medication, the nightmares may be attributed to some side effects of the drug. Amphetamines, antidepressants, and stimulants like cocaine and caffeine can cause nightmares. Blood pressure medication, levodopa and medications for Parkinson's disease have also been known to cause nightmares[citation needed].
Children are more apt to experience nightmares than teenagers and adults.[citation needed] Young children normally have nightmares once or twice a week and will usually not develop a nightmare disorder unless they are under severe psychological stress.[citation needed] Children who have persistent nightmares range from 10% to 50%.[1] It is more common for a child to be diagnosed with nightmare disorder however, since children do not usually experience many nightmares when they are young.
Alleviating stress within the home and personal life is a good way to eliminate any anxiety the individual may have upon going to bed. A regular fitness routine and perhaps relaxation therapy would help to make the individual fall asleep faster and more peacefully.[citation needed] Yoga and meditation can also help to eliminate stress and create a more peaceful sleeping atmosphere.[citation needed] One can also treat an individual by fixing what is the main cause of the pressure and irritation in their life.[citation needed]
Diagnosis and medication can only be given to patients that report the recurring nightmares to a psychiatrist or other physician. Medications like prazosin are sometimes used to treat nightmares in people with PTSD.[2][3] Therapy usually helps to deal with the frightening themes of the nightmares and alleviate the recurrence of the dreams. The persistent nightmares will usually improve as the patient gets older. Treatments are generally very successful.[1]
Research has been undertaken to investigate if sufferers of nightmares could benefit from the ability to be aware they are indeed dreaming, a process known as lucid dreaming,[4][5] but so far evidence for this treatment is weak.[6]
Conclusions: LDT seems effective in reducing nightmare frequency, although the primary therapeutic component (i.e. exposure, mastery, or lucidity) remains unclear.
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| リンク元 | 「悪夢障害」 |
| 関連記事 | 「disorder」 |