18 Questions
What is the primary reason for sleep, based on the given text?
To allow inhibitory processes in the brain
Which physiological functions exhibit circadian rhythmicity?
Temperature and heart rate
What is the effect of a 'circadian load' on individuals suffering from cardiovascular disease?
It affects the crucial period hours after awakening
What determines the length of the human internal clock cycle?
Genetic factors
What is the term used to describe the synchronization of the internal clock to external cues like light/dark cycle?
Entrainment
What was observed in golden hamsters with a particular mutation in relation to their 'free-running' cycle?
They exhibited shorter free-running cycles
Which of the following biological rhythms is not mentioned in the text?
Breathing cycle
What impact can circadian rhythms have on behavior, according to the text?
Increased chances of vehicle accidents
What is the term for the occurrence when traveling across time zones requires adjusting the circadian rhythm?
Jetlag
Which stage of sleep helps consolidate learning and clear metabolic waste from the brain?
Deep sleep
What is the impact of sleep deprivation on cognitive abilities, according to the text?
Impaired cognitive abilities
Which of the following is affected by the circadian clock changes with age?
Sleep patterns in teenagers and older adults
What is the term for the basic rest-activity cycle of approximately 90 minutes in humans?
Ultradian rhythm
Which stage of sleep improves navigation performance and hippocampal activity?
Deep sleep
What is the term for the occurrence when traveling across time zones requires adjusting the circadian rhythm?
Jetlag
What impact can circadian rhythms have on behavior, according to the text?
Increased chances of vehicle accidents
Which stage of sleep helps consolidate learning and clear metabolic waste from the brain?
Deep sleep
What is the impact of sleep deprivation on cognitive abilities, according to the text?
Impaired cognitive abilities
Study Notes
- Circadian rhythms, including wheel running in rodents, follow both externally imposed and internal cycles
- Humans have a basic rest-activity cycle of approximately 90 minutes, demonstrated through self-reported thoughts and EEG recordings
- Other biological rhythms include the human menstrual cycle, hibernation, and migration in birds
- The circadian clock changes with age, affecting sleep patterns in teenagers and older adults
- Circadian rhythms can have a significant impact on behavior, including work-related errors and vehicle accidents
- Jetlag occurs when traveling across time zones and requires adjusting the circadian rhythm
- Sleep deprivation studies show impaired cognitive abilities but no physiological stress response or impact on physical exercise
- The function of sleep is still not fully understood, with theories including energy conservation and restorative processes
- Slow wave sleep helps consolidate learning and clear metabolic waste from the brain
- REM sleep improves non-declarative memory and writing performance
- Deep sleep improves navigation performance and hippocampal activity.
Test your knowledge of biological rhythms and the importance of sleep in regulating physiological functions. Explore the concept of circadian rhythms and their impact on the sleep-wake cycle.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
