PSYC06H3 Study Guide - Midterm Guide: Sinus Rhythm, Sinoatrial Node, Mean Arterial Pressure
Document Summary
Psyc06 - lectures 3 & 4, chapter 12, blascovich et al. , 2004 cardiovascular system. Heart rate (bpm) and heart period (ibi) the frequency with which your heart beats. Measurement there are two methods of quantifying heart rate: beats per minute (bpm) and interbeat interval (ibi or rr interval). Bpm is the count of heartbeats (r- spikes) within a minute (~70 for men, ~75 for women). Ibi is the time between each beat (r-spike) in milliseconds (~860 for men, ~800 for women). So in one you measure the number in a minute, and in the other you measure the time inbetween each beat. Psychological correlates/meaning an increased hr means stress, motivating tasks and excitement. While a decreased hr means an aversive stimuli. Pre-ejection period (pep) the time between when the heart ventricles depolarize and when blood is pushed out of the heart.
