PSYA01H3 Chapter Notes - Chapter 6: Sleep Spindle, Theta Wave, Delta Wave
Document Summary
Consciousness: is a person"s subjective awareness, including thought, perceptions, experiences of the world, and self-awareness. Biological rhythms: adapted to the cycles in their env. An example of infradian rhythm type of rhythm that happens longer than a dat. Circadian rhythms: are internally driven daily cycles of approxim. "y 24 hrs affecting physiological and behavioural processes. Entertainment: when biological rhythms become synchronized to external cues such as lifht temperature or even a clock. Endogenous rhythms: biological rhythms that are made by our body independent of external cues such as light. Polysomnography: a set of objective measurements used to examine physiological variables during sleep. Sleep cycles are often measured by the electroencephalogram (eeg) Output of an eeg is in waveform showing the overall acitivity of these groups of neurons. Amplitude: height and depth of the up-down cycle. Beta waves: high frequency, low amplitude waves (15-30 hz) are charac"s of wakefulness [awake]
