Ultradian Rhythms

Created by: karolina kuldacz
Created on: 06-11-14 12:11

Dement and Kleitman

monitored electrical activity in the brain during sleep using an EEG and woke participants during different stages of sleep. People awakened during REM sleep reported dreaming 90% of the time only 7% of awakenings from NREM sleep led to dream recall

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Klein and Armitage

tested participants on verbal and spatial tasks, finding that performance was related to a 96 minute cycle, very similar to the sleep cycle

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Gerkema and Dann

Found that ultradian rhythms tend to be correlated with brain and body size with larger animals having longer cycles

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Loomis et al

discover that during sleep the waves generated by the brain slow and become larger the frequency falls as the wavelength increases.

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Aserinsky

placed the electrodes of the EEG machine near to the eyes of his eight year old son, Armond whilst he was asleep. At regular intervals he noticed that there were bursts of electrical activity.

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Other cards in this set

Card 2

Front

tested participants on verbal and spatial tasks, finding that performance was related to a 96 minute cycle, very similar to the sleep cycle

Back

Klein and Armitage

Card 3

Front

Found that ultradian rhythms tend to be correlated with brain and body size with larger animals having longer cycles

Back

Card 4

Front

discover that during sleep the waves generated by the brain slow and become larger the frequency falls as the wavelength increases.

Back

Card 5

Front

placed the electrodes of the EEG machine near to the eyes of his eight year old son, Armond whilst he was asleep. At regular intervals he noticed that there were bursts of electrical activity.

Back

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Ultradian Rhythms