For example, the effects of cardiac afferent
input on sensory perception have been studied by
looking at how these signals affect processing in the
visual system. It has been shown that the process-
ing of visual information is significantly changed
as heart rate and carotid pressure change. These
findings provide confirmation of the Laceys’ earlier
behavioral evidence that cardiovascular activity in-
fluences sensory intake.
Rollin McCraty, Ph.D.