Chapter 5 Flashcards
The accumulation of a person’s thoughts, perceptions, experience, and self-awareness.
What is Consciousness?
A series of bodily functions regulated by an internal clock.
What are Biological Rhythms?
A biological rhythm that cycles for a period longer than 24 hours.
What is an Infradian Rhythm?
A biological rhythm that encompasses an entire year, a “yearly” cycle.
What is a Circannual Rhythm?
A biological rhythm that takes place under 24 hours.
What is an Ultradian Ryhthm?
A biological rhythm that operates on a constant 24 hour clock, responsible for regulating physiological and behavioural processes.
What is a Circadian Rhythm?
A part of the hypothalamus that takes light level information and sends signals to the pineal gland to release melatonin.
What is the Suprachiasmatic Nucleus? (SCN)
An individual’s adaptation with chrono-biological, physical, and behavioural relationship with their environment.
What is Entrainment?
A biological rhythm which is not affected by external cues or environmental circumstances.
What are Endogenous Rhythms?
An individual’s preference for sleeping within a 24 hour period. As age increase, amount of sleep decreases, as they have a negative correlation.
What is a Chronotype?
A set of objective measurements to examine physiological changes during sleep.
What is a Polysomnography Test?
A device using sensors on the scalp to measure brain activity through a heatmap.
What is an Electroencephalogram? (EEG)
Brain waves signifying wakefulness due to their erratic nature.
What are Beta Waves?
Brain waves detected while day-dreaming, occur right before sleep.
What are Alpha Waves?
Brain waves that occur as breathing, blood pressure, and heart rate decrease. Also of note, these brain waves can still be affected by external stimuli and return to higher frequency stages.
What are Theta Waves?
Sleep stage characterised by quickening brain waves, inhibited body movement, and rapid eye movement.
What is Rapid Eye Movement (REM) Sleep?
This sleep hypothesis states that sleep helps to restore energy and repair cellular wear and tear from the day’s activities.
What is the Restore-Repair Sleep Hypothesis?
This sleep hypothesis states that sleep helps with preserving energy and occurs at periods of the day where an organism is least likely to be attacked.
What is the Preserve-Protect Sleep Hypothesis?
This disorder occurs when an individual cannot or refuses to sleep consistently.
What is Sleep Deprivation?
What are some impairments one would face if they were sleep deprived?
Difficulty multitasking, trouble focusing for consistent periods of time, poor risk assessment.