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  2. Sudden acquired retinal degeneration syndrome - Wikipedia

    en.wikipedia.org/wiki/Sudden_acquired_retinal...

    Symptoms include sudden permanent blindness, but may occur more slowly over several days, weeks or months, [3] dilated pupils. Pupillary light reflexes are usually reduced but present; the slow phase mediated by melanopsin in retinal ganglion cells is retained.

  3. Night terror - Wikipedia

    en.wikipedia.org/wiki/Night_terror

    Although the symptoms of night terrors in adolescents and adults are similar, the cause, prognosis, and treatment of symptoms are qualitatively different. These night terrors can occur each night if the individual does not eat a proper diet, get the appropriate amount or quality of sleep (e.g., sleep apnea ), well endure stressful events, and ...

  4. Parasomnia - Wikipedia

    en.wikipedia.org/wiki/Parasomnia

    Nightmares are like dreams primarily associated with REM sleep. Nightmare disorder is defined as recurrent nightmares associated with awakening dysphoria that impairs sleep or daytime functioning. [ 1 ] [ 2 ] It is rare in children, however persists until adulthood.

  5. Anxiety dream - Wikipedia

    en.wikipedia.org/wiki/Anxiety_dream

    This is an important factor because the ego-defense mechanisms (e.g. repression and intellectualization) are key in staving off anxiety dreams and nightmares. [1] Conflict in a child's life as well as the approaching of developmental stages can also cause anxiety dreams. For example, there may be conflict present as a child begins toilet training.

  6. Rage syndrome - Wikipedia

    en.wikipedia.org/wiki/Rage_syndrome

    Surviving dogs developed seizures, fecal and urinary incontinence, confusion, memory loss, seromas, emotional dysregulation, focal neurologic symptoms, weakness, and weight loss. [ 19 ] 40% of surviving dogs did not have a reduction in existing aggression, and some dogs' aggression worsened after the procedure. [ 19 ]

  7. Nightmare - Wikipedia

    en.wikipedia.org/wiki/Nightmare

    Nightmares can have physical causes such as sleeping in an uncomfortable position or having a fever, or psychological causes such as stress or anxiety. Eating before going to sleep, which triggers an increase in the body's metabolism and brain activity, can be a potential stimulus for nightmares.

  8. Sleep disorder - Wikipedia

    en.wikipedia.org/wiki/Sleep_disorder

    The most common sleep-related symptom of bipolar disorder is insomnia, in addition to hypersomnia, nightmares, poor sleep quality, OSA, extreme daytime sleepiness, etc. [27] Moreover, animal models have shown that sleep debt can induce episodes of bipolar mania in laboratory mice, but these models are still limited in their potential to explain ...

  9. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    What causes various sleep disorders and how can they be treated? [ 6 ] Other areas of modern neuroscience sleep research include the evolution of sleep, sleep during development and aging , animal sleep , mechanism of effects of drugs on sleep, dreams and nightmares, and stages of arousal between sleep and wakefulness.