sleep cycle evalutstions Flashcards
What did Dement and Kleitman (1957) find regarding REM activity?
REM activity during sleep was highly correlated with dreaming
They monitored sleep patterns of nine adult participants using an EEG while controlling for caffeine and alcohol.
What is a significant criticism of the original study by Dement and Kleitman?
The small size of the original sample
This has led to criticisms regarding the generalizability of the findings.
What does REM sleep signify in the context of sleep cycles?
An important component of the ultradian sleep cycle
It is linked with vivid dreaming and accurate recall of dreams.
What gender bias is present in much of the research on ultradian sleep cycles?
Androcentric focus, primarily using male samples
This limits the understanding of sleep patterns in females.
Why might female sleep patterns differ from male sleep patterns?
Females experience different biological processes such as the menstrual cycle
Recent research shows that women need more sleep than men due to hormone regulation.
What did Tucker et al. (2007) find about individual differences in sleep cycles?
Significant differences in the duration of each sleep stage
This indicates that generalizations about sleep patterns may not always be suitable.
What is lucid dreaming, and why is it relevant to sleep stages?
A phenomenon where individuals go from wakefulness straight into REM sleep
This challenges traditional stage theories of sleep.
What methodological issue is raised regarding sleep research conducted in laboratories?
Lack of ecological validity due to artificial sleep environments
Participants sleep with electrodes and are often woken throughout the night.
Fill in the blank: The problem with studying sleep cycles is the _______ observed in people.
individual differences
This makes investigating patterns difficult.
