| Abstract: | Heart rate (HR) and various measures of heart rate variability (HRV) were measured while 29 male and 15 female student volunteers individually rated slide stimuli presented in one-minute intervals. Ratings were factor analyzed and factor scores analyzed as variables. Factor one: “evaluation” accounted for 52.5% of the variances. HR and HRV were not significantly related to the experimental conditions although factor one was related. HR was correlated to measures of HRV [such as the coefficient of variability (CV), coefficient of temporal variability (CVT), a cosine function (FREQ) and to a lesser degree the auto-correlation (RA)]. HR also correlated linearly to evaluation. CVT, CV and RA were also linearly correlated to evaluation. HRV (BURST) was independent of HR, other forms of HRV, and curvilinearly related to evaluation. A cyclic HRV function (FREQ) was found with a mode of 18.7 sec and accounted for 21.4% of the variance of the heart beat data. This cyclic function, not reported previously, should be further investigated. |
