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THE RELATION OF AMPLITUDE OF ALPHA RHYTHM TO HEART RATE
Author(s) -
Surwillo Walter W.
Publication year - 1965
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1965.tb03241.x
Subject(s) - alertness , arousal , alpha rhythm , psychology , rhythm , heart rate , electroencephalography , audiology , alpha (finance) , amplitude , developmental psychology , social psychology , neuroscience , psychometrics , blood pressure , medicine , psychiatry , physics , construct validity , quantum mechanics
With heart rate as a criterion measure of arousal, amplitude of alpha rhythm of the electroencephalogram (EEG) was studied in 99 subjects aged 28 to 99 years. The physiological recordings were made while the subjects were performing a simple reaction task. Conditions of the experiment provided a range of arousal states from drowsiness to alertness. Careful examination of data from each of the 99 cases failed to reveal any evidence of an inverted‐U relationship between alpha amplitude and heart rate scores. It was shown that the method of analysis, which combines observations from different subjects and which was used in a previously reported investigation (Stennett, 1957), is Invalid.