2015
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Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. Its opposite state is described as hypnopompia – the transitional state from sleep into wakefulness.
Dec 8, 2023 · Hypnagogic hallucinations, also known as waking dreams, are vivid experiences that occur as a person falls asleep. They can involve visual, auditory, or physical sensations, and are usually harmless but may be triggered by stress, sleep deprivation, or medications.
- Hypnagogic hallucinations. French psychiatrist Jules-Gabriel-Francois Baillarger first described hypnagogic hallucinations in the 1840s. Hypnagogic hallucinations are imaginary events that seem real as you’re on the cusp of falling asleep.
- The Tetris effect. The Tetris effect is a phenomenon where intrusive images or thoughts enter your head after you perform a repetitive activity. It comes from the name of the video game Tetris.
- Hypnogogic jerks. Hypnagogic jerks are sudden muscle contractions that occur when you’re falling asleep. They lead to sudden and strong contractions of your muscles that may jerk you awake.
- Sleep paralysis. Sleep paralysis is a feeling of being awake but being unable to move your muscles. It often occurs along with hypnagogic hallucinations in people with narcolepsy.
Jan 2, 2024 · Hypnopompic hallucinations typically occur as you’re waking up. They’re mostly visual and may feel as if your dream state is continuing into your wakefulness, as with lucid dreaming. Hypnagogic hallucinations are similar but more often occur as you’re falling asleep.
Jul 12, 2023 · Hypnagogic hallucinations are harmless sensory experiences that occur as you fall asleep. They may involve hearing, seeing, smelling, or feeling things that seem real, but are not. Learn about the possible causes, how to distinguish them from dreams, and when to seek medical help.
Oct 7, 2022 · A hypnagogic jerk is a sudden and strong involuntary twitch or muscle contraction, that occurs while an individual is beginning to fall asleep. The same phenomenon is called a hypnic jerk if it occurs upon awakening. Both are often known as a sleep start. It may affect only part of the body, like an arm or leg.
Mar 31, 2022 · Hypnagogic hallucinations, also known as waking dreams, are visual or auditory hallucinations that occur when someone is falling asleep. They are common and usually harmless, but may be associated with sleep disorders like narcolepsy or require medication.
