What the heart forgets: cardiac timing influences memory for words and is modulated by metacognition and interoceptive sensitivity

Garfinkel, Sarah, Barrett, Adam, Minati, Ludovico, Dolan, R J, Seth, Anil and Critchley, Hugo (2013) What the heart forgets: cardiac timing influences memory for words and is modulated by metacognition and interoceptive sensitivity. Psychophysiology, 50 (6). pp. 505-512. ISSN 0048-5772

Full text not available from this repository.

Abstract

Mental functions are influenced by states of physiological arousal. Afferent neural activity from arterial baroreceptors at systole conveys the strength and timing of individual heartbeats to the brain. We presented words under limited attentional resources time-locked to different phases of the cardiac cycle, to test a hypothesis that natural baroreceptor stimulation influences detection and subsequent memory of words. We show memory for words presented around systole was decreased relative to words at diastole. The deleterious memory effect of systole was greater for words detected with low confidence and amplified in individuals with low interoceptive sensitivity, as indexed using a heartbeat counting task. Our observations highlight an important cardiovascular channel through which autonomic arousal impacts a cognitive function, an effect mitigated by metacognition (perceptual confidence) and interoceptive sensitivity.

Item Type: Article
Schools and Departments: Brighton and Sussex Medical School > Neuroscience
School of Engineering and Informatics > Informatics
Subjects: R Medicine > R Medicine (General) > R895 Medical physics. Medical radiology. Nuclear medicine
R Medicine > RC Internal medicine > RC0321 Neurosciences. Biological psychiatry. Neuropsychiatry
Depositing User: Hazelle Woodhurst
Date Deposited: 20 Mar 2013 13:20
Last Modified: 27 Jul 2017 17:54
URI: http://sro.sussex.ac.uk/id/eprint/44075
📧 Request an update