Journal
PSYCHOPHYSIOLOGY
Volume 53, Issue 11, Pages 1702-1711Publisher
WILEY
DOI: 10.1111/psyp.12728
Keywords
Baroreceptor activity; Selective attention; Distractor processing; Cardiac cycle
Funding
- Rhineland-Palatinate Research Fund
- Nikolaus Koch Foundation
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The effect of cardiac cycle time on attentional selection was investigated in an experiment in which participants classified target letters in a visual selection task. Stimulus onsets were aligned to the R wave of the electrocardiogram and stimuli presented either during the ventricular systole or diastole. Selection efficiency was operationalized as difference in target selection performance under conditions of homogeneous and heterogeneous distractors. Differences in performance (i.e., the impact selection difficulty had on the ability to select the target) were attenuated for stimuli presented during the ventricular systole compared to the diastole. Increased baroafferent signal transmission during the systole appears to reduce interference of highly distracting stimuli on visual selection efficiency.
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