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  • Title: The effect of lateral visual fixation and the direction of eye movements on heartbeat discrimination.
    Author: Weisz J, Balázs L, Láng E, Adám G.
    Journal: Psychophysiology; 1990 Sep; 27(5):523-7. PubMed ID: 2274615.
    Abstract:
    This study was undertaken to determine whether the asymmetrical activation of the two cerebral hemispheres affects the accuracy of heartbeat perception. Hemispheric preference--the tendency to activate one hemisphere rather than the other--was assessed by the directionality of conjugate lateral eye movements. Actual differential hemispheric activation was achieved by contralateral visual fixation. The results of 44 right-handed male subjects showed that right hemisphere preferent subjects ("left-movers") performed better on a heartbeat discrimination task than left hemisphere preferent subjects ("right-movers"). The direction of lateral visual fixation also influenced heartbeat discrimination: subjects fixating to the left were more accurate than those fixating to the right.
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