Memory: Necessary for Deep Sleep?

08:00 EDT 9th March 2020 | BioPortfolio

Summary of "Memory: Necessary for Deep Sleep?"

Patients with hippocampus lesions suffer profound failures in episodic memory. Sleep plays a key role in processing hippocampus-dependent memories. Lesioning this structure may fundamentally alter the architecture of human sleep, posing fundamental questions about the link between sleep and memory processing.


Journal Details

This article was published in the following journal.

Name: Current biology : CB
ISSN: 1879-0445
Pages: R234-R236


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Medical and Biotech [MESH] Definitions

Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; includes Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep.

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One of the four types of brain waves seen on EEG characterized by a high amplitude and a frequency of 4 Hz and below. They are considered the "deep sleep waves" observed during sleep in dreamless states, infancy, and in some brain disorders.

Dyssomnias (i.e., insomnias or hypersomnias) associated with dysfunction of internal sleep mechanisms or secondary to a sleep-related medical disorder (e.g., sleep apnea, post-traumatic sleep disorders, etc.). (From Thorpy, Sleep Disorders Medicine, 1994, p187)

Movements or behaviors associated with sleep, sleep stages, or partial arousals from sleep that may impair sleep maintenance. Parasomnias are generally divided into four groups: arousal disorders, sleep-wake transition disorders, parasomnias of REM sleep, and nonspecific parasomnias. (From Thorpy, Sleep Disorders Medicine, 1994, p191)

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