Cardiac cycle time effects on selection efficiency in vision

2016/07/23 by Lisa Pramme, Mauro F. Larra, Hartmut Schächinger +1 · 8 citations
Neuroscience · #Neural and Behavioral Psychology Studies #EEG and Brain-Computer Interfaces #Visual perception and processing mechanisms

paper · doi:10.1111/psyp.12728

Abstract

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.

Citations

• Orienting of Attention
• What the heart forgets: Cardiac timing influences memory for words and is modulated by metacognition and interoceptive sensitivity

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