nightmare refers to frightening and anxiety-provoking dream occurring during rapid eye movement sleep. The individual recalls the bad dream and recovers alertness and orientation quickly.

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Sleepwalking at psychology-glossary.com■■■■■■
sleepwalking is a form of parasomnia that occurs during deep sleep, in which the individual gets out . . . Read More
Nightmares at psychology-glossary.com■■■■■
Nightmares: nightmares refer to a form of parasomnia that occurs during REM sleep and is characterized . . . Read More
Rapid eye movement (REM) sleep at psychology-glossary.com■■■■■
Rapid eye movement (REM) sleep: Rapid eye movement: rapid eye movement (REM) sleep refers to the periodic . . . Read More
CSA (Central Sleep Apnea) at psychology-glossary.com■■■■■
CSA (Central Sleep Apnea) : CSA is the acronym of Central Sleep Apnea which is a type of Apnea that occurs . . . Read More
Parasomnias at psychology-glossary.com■■■■
Parasomnias: parasomnias is a category of sleep disorders in which behavioral or physiological events . . . Read More
Sensory at psychology-glossary.com■■■■
Sensory refers to nerve messages coming into the brain In psychology, the term "sensory" refers to the . . . Read More
Somnambulism at psychology-glossary.com■■■■
Somnambulism refers to sleepwalking. It is the purposeful moving, usually but not always including walking, . . . Read More
Non-rapid eye movement sleep at psychology-glossary.com■■■■
Non-rapid eye movement sleep (NonREM, NREM) refers to a type of sleep that is divided into four (4) stages. . . . Read More
Night terror at psychology-glossary.com■■■■
Night terror is defined as a state of panic during NREM sleep. An experience of intense anxiety during . . . Read More
Polysomnography (PSG) at psychology-glossary.com■■■■
Polysomnography (PSG) : Polysomnography or PSG refers to the the recording of different biological factors . . . Read More