Response of the autonomic nervous system to emotional email on a smartphone

Mizuno‐Matsumoto, Yuko; Muramatsu, Ayumi; Okajima, Keiko; Asakawa, Tetsuya; Hayashi, T.; Taya, Masato

doi:10.1109/wac.2014.6935661

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…We had previously reported that the sympathetic nervous system responds earlier to unfamiliar emotional unpleasant stimuli but does not respond earlier to familiar unpleasant stimuli when compared with the response of the brain [13]. The results of the present study showed that the parasympathetic nervous system responded earlier to both unfamiliar (epoch 1) and familiar (epoch 3) unpleasant stimuli to compare with the response of the cerebral cortex.…”

Section: Discussionsupporting

confidence: 46%

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How do the parasympathetic nervous system and EEG respond to emotional memory recall?

Mizuno‐Matsumoto

Inoguchi

Kobayashi

et al. 2019

IEEJ Transactions Elec Engng

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An emotional event can provoke somatic symptoms as a consequence of brain responses accompanying reactions of the autonomic nervous system (ANS). ANS consists of the sympathetic nervous system and the parasympathetic nervous system, and their anatomical and physiological mechanisms are different. The aim of this study was to evaluate the time lag between the responses of electroencephalography (EEG) and the parasympathetic nervous system (from electrocardiography; ECG) during emotional recall. EEG and ECG of healthy young adults were simultaneously recorded during the recall of emotionally pleasant and unpleasant audiovisual stimuli, with three repetitions. A time series (TS) of relative power spectra from EEG and a TS of power spectral values in high frequency (HF) of RR intervals in ECG were obtained using fast Fourier transform. The time lag between the TS of EEG and HF was calculated using wavelet cross‐correlation analysis. The results indicated that the cerebral cortex responded earlier than the parasympathetic nervous system to the pleasant stimuli. In contrast, the parasympathetic nervous system responded earlier than the cerebral cortex to the unpleasant stimuli. These events constantly appeared in both unfamiliar and familiar situations. This study quantitatively shows that the parasympathetic nervous system quickly and constantly reacts to emotionally unpleasant stimuli. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Discussionsupporting

confidence: 46%

“…Using EEG, we have shown that emotionally pleasant and unpleasant stimuli evoked different cerebral cortex activities from the resting states . We have also reported, using electrocardiography (ECG) and plethysmography, that ANS responded to emotional stimuli .…”

Section: Introductionmentioning

confidence: 97%

How do the parasympathetic nervous system and EEG respond to emotional memory recall?

Mizuno‐Matsumoto

Inoguchi

Kobayashi

et al. 2019

IEEJ Transactions Elec Engng

Self Cite

View full text Add to dashboard Cite

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“…We reported that the EEG responses of the cerebral cortex (CC) to unpleasant emotional stimuli are different from the responses to pleasant emotional stimuli [11][12][13]. We also evaluated the responses of the ANS to pleasant and unpleasant emotional stimuli using ECG and plethysmography [13,14].…”

Section: Introductionmentioning

confidence: 99%

Cerebral cortex and autonomic nervous system responses during emotional memory processing

et al. 2020

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Psychiatric symptoms are often accompanied by somatic symptoms induced by the activity of the autonomic nervous system (ANS). The aim of this study was to calculate the time lag between electroencephalography (EEG) and electrocardiography (ECG) responses, to clarify the changes in the relationship between the cerebral cortex (CC) and the sympathetic nervous system (SNS) during emotional recall processing. Twenty-two healthy young adults were examined. Their EEG and ECG data were simultaneously recorded during emotional audiovisual recall tasks using pleasant and unpleasant stimuli for 180 s, with three repetitions (Epochs 1 & 2 and Epoch 3). The EEG data were analyzed using a fast Fourier transform (FFT) to obtain a time series of relative power spectra, X E , in the theta 1, theta 2, alpha 1, alpha 2, alpha 3, beta 1, beta 2, and beta 3 bands. Time series of RR (inter-beat) intervals (time intervals between successive R waves) derived from the ECG spectral analysis using FFT was applied to the resampled time series of RR intervals over about 60 s to obtain a time series of power spectra for the ratio low frequency/high frequency (LH/HF), X C , which reflects the activity of the sympathetic nervous function. The time lag between X E and X C was calculated using wavelet-crosscorrelation analysis. The results demonstrated that the brain responded to unfamiliar emotionally pleasant stimuli in Epochs 1 & 2 earlier than the SNS, whereas the brain and SNS responded to unfamiliar unpleasant stimuli nearly simultaneously. The brain was activated rapidly in response to familiar unpleasant stimuli, although SNS responded more rapidly to familiar pleasant stimuli than the brain in Epoch 3. Our results quantitatively describe the relationship between the CC and the ANS during emotional recall.

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Response of the autonomic nervous system to emotional email on a smartphone

Cited by 2 publications

References 5 publications

How do the parasympathetic nervous system and EEG respond to emotional memory recall?

How do the parasympathetic nervous system and EEG respond to emotional memory recall?

Cerebral cortex and autonomic nervous system responses during emotional memory processing

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