PSYC 100 Chapter Notes - Chapter 5: Monoamine Neurotransmitter, Sleep Spindle, Therapeutic Index

• School: McGill University
• Department: Psychology
• Course: PSYC 100
• Professor: Jens Pruessner

Document Summary

Anesthetic awareness: surgical patients are conscious during surgery. Can hear and feel pain but not move because of the powerful muscle relaxants. Odd because anesthesia is supposed to produce a lack of awareness. The indirect measures of consciousness (e. g. respiratory rate, blood pressure) to determine level of anesthetic depth aren"t reliable in all cases. Therefore, other techniques to measure awareness more directly. Bispectral analysis: monitors (a) the type and percentage of brain waves that the patient is displaying (b) the percentage of isoelectric activity (no brain activity) As anesthetic depth increases, proportion of brain waves characteristic of deep sleep and isoelectric activity increases. The rhythms of life: biological rhythms: built-in rhythms or cycles of internal biological activity, ultradian rhythms: biological rhythms shorter than 24 hours (e. g. heartbeat) Circadian rhythms: circadian rhythms: internal biological changes that occur on a daily schedule, e. g.