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oai:repisalud.isciii.es:20.500.12105/227062024-11-28T21:43:04Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16967

00925njm 22002777a 4500 dc Alba, Guzman author Vila, Jaime author Rey, Beatriz author Montoya, Pedro author Angel Munoz, Miguel author 2019-02-25 The neurovisceral integration model proposes a neuronal network that is related to heart rate activity and cognitive performance. The aim of this study was to determine whether heart rate variability (HRV) and variability in electroencephalographic (EEG) functional connectivity in the resting state are related to cognitive flexibility. Thirty-eight right-handed students completed the CAMBIOS test, and their heart and EEG activity was recorded during 6 min in the resting state with their eyes open. We calculated correlations, partial correlations and multiple linear regressions among HRV indices, functional brain connectivity variability and CAMBIOS scores. Furthermore, the sample was divided into groups according to CAMBIOS performance, and one-way ANOVA was applied to evaluate group differences. Our results show direct and inverse correlations among cognitive flexibility, connectivity (positive and negative task networks) and heartbeat variability. Partial correlations and multiple linear regressions suggest that the relation between HRV and CAMBIOS performance is mediated by neuronal oscillations. ANOVA confirms that HRV and variability in functional brain connectivity is related to cognitive performance. In conclusion, the levels of brain signal variability might predict cognitive flexibility in a cognitive task, while HRV might predict cognitive flexibility only when it is mediated by neuronal oscillations. Alba G, Vila J, Rey B, Montoya P, Muñoz MA. The Relationship Between Heart Rate Variability and Electroencephalography Functional Connectivity Variability Is Associated With Cognitive Flexibility. Front Hum Neurosci. 2019 Feb 25;13:64. 10.3389/fnhum.2019.00064 1662-5161 Frontiers in Human Neuroscience http://hdl.handle.net/20.500.13003/17645 30858800 L2002235470 2-s2.0-85069541384 https://hdl.handle.net/20.500.12105/22706 459737900001 HRV EEG Resting-state Sample entropy Variability of functional connectivity Cognitive flexibility The Relationship Between Heart Rate Variability and Electroencephalography Functional Connectivity Variability Is Associated With Cognitive Flexibility