Relation between asymmetry of prefrontal cortex activities and the autonomic nervous system during a mental arithmetic task: near infrared spectroscopy study

Tanida, Masahiro; Sakatani, Kaoru; Takano, Ruriko; Tagai, Keiko

doi:10.1016/j.neulet.2004.07.076

Cited by 166 publications

(121 citation statements)

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“…Studies assessing the central autonomic control of the cardiovascular system have highlighted the dominant role of the right hemisphere compared with the left brain in modulating the sympathetic activity to the heart and vessels (2,3,10,19,22,30). For example, electrical stimulation of the superficial insular cortex in patients undergoing surgery for intractable epilepsy showed a right-sided dominance for sympathoexcitatory effects such as tachycardia and an increase in blood pressure (22).…”

Section: Discussionmentioning

confidence: 99%

Lateralization of expression of neural sympathetic activity to the vessels and effects of carotid baroreceptor stimulation

Diedrich¹,

Porta²,

Barbic³

et al. 2009

American Journal of Physiology-Heart and Circulatory Physiology

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Furlan R. Lateralization of expression of neural sympathetic activity to the vessels and effects of carotid baroreceptor stimulation. Am J Physiol Heart Circ Physiol 296: H1758 -H1765, 2009. First published April 10, 2009 doi:10.1152/ajpheart.01045.2008.-Human studies suggest that cardiovascular neural sympathetic control is predominantly modulated by the right cerebral hemisphere. It is unknown whether post-ganglionic sympathetic activity [muscle sympathetic nerve activity (MSNA)] shows any functional asymmetry. Eight right-handed volunteers (3 women and 5 men, 32 Ϯ 2 yr of age) underwent ECG, beat-by-beat blood pressure, respiratory activity, and simultaneous right and left MSNA recordings during spontaneous and controlled breathing (CB, 15 breaths/min, 0.25 Hz). Dynamic carotid baroreceptor stimulation was obtained by 0.1-Hz sinusoidal suction, from 0 to Ϫ50 mmHg, randomly applied to the right, left, and combined right and left sides of the neck during CB. Laterality was assessed by changes in the MSNA burst rate (in bursts/min, and bursts/100 beats), strength [amplitude (A) and area (AA)], and the oscillatory component at 0.1 Hz during baroreceptor stimulation. Amplitude parameters were normalized by CB burst mean amplitude and area of the same side. At rest, the right and left MSNA burst rate and total MSNA activity were similar. Conversely, the right MSNA normalized burst AN (1.36 Ϯ 0.18) and AAN (1.31 Ϯ 0.16) were larger than the left MSNA AN (1.04 Ϯ 0.09) and AAN (1.02 Ϯ 0.08). Unilateral and bilateral carotid baroreflex stimulation abolished the right prevalence of AN and AAN. In conclusion, the right lateralization of sympathetic activity to the vessels is indicated by normalized burst strength parameters of bilateral MSNA recordings at rest during spontaneous breathing. Carotid baroreceptor stimulation disrupted such expression of MSNA lateralization possibly by disturbing the synchronizing action of right cerebral hemisphere. sympathetic control of circulation; muscle sympathetic nerve activity recording; burst amplitude; area; laterality SEVERAL HUMAN STUDIES support the concept that the neural sympathetic activity regulating the cardiovascular system undergoes a predominant modulation exerted by the right cerebral hemisphere (2, 4, 10, 17-19, 33, 34). The right side of the medulla was also found to be involved in cardioacceleration in vagotomized animals (16). However, it has to be pointed out that the large majority of these investigations focused on functional modifications of the sympathetic target organs, i.e., on changes of heart rate and blood pressure and their variability, and did not focus on a direct measure of right and left efferent sympathetic activity.Two studies (27, 28) addressed the problem of the potential dissimilarity between the right and left neural efferent sympathetic activity by recording simultaneously muscle sympathetic nerve activity (MSNA) in both peroneal nerves in humans. Sundlof and Wallin (27) focused on burst rate, which was found to be similar in the right and le...

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Section: Discussionmentioning

confidence: 99%

Lateralization of expression of neural sympathetic activity to the vessels and effects of carotid baroreceptor stimulation

Diedrich¹,

Porta²,

Barbic³

et al. 2009

American Journal of Physiology-Heart and Circulatory Physiology

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“…This was because there was no significant increase in the cardiovascular system during a hot flash since HR and BP had already increased during the mental arithmetic task 21,22) . In this study, comparisons of physiological change between Task and Non-task during hot flashes were analyzed using the data of only four subjects who experienced hot flashes during both Task and Non-task.…”

Section: Discussionmentioning

confidence: 99%

Mental Workload under Time Pressure can Trigger Frequent Hot Flashes in Menopausal Women

2008

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IntroductionAccording to the report from the Ministry of Health, Labour and Welfare (MHLW) of Japan in 2005, female employees numbered 22.29 million, and the population of working women in their 40s and 50s was higher than for any other age group except the 20s. In particular, the percentage of those in employment by age group has been estimated at 60.8% for ages [40][41][42][43][44] 63.0% for ages [45][46][47][48][49] 56.7% for ages 50-54, and 45.9% for ages 55-59. These rates increased from 5.3 to 7.8% compared with ten years ago. The figures demonstrate that menopausal women are a precious labor resource in an aging society with a falling birthrate.However, they also begin to experience menopausal symptoms such as hot flashes, night sweats, general fatigue, and shoulder stiffness caused by reduced estrogen. Utian (2005) 1) has reported that all menopausal symptoms may lead to social impairment and work-related difficulties that significantly decrease overall quality of life.Hot flashes are the most common symptom of climacteric women. The experience of a hot flash is usually described as sensations of intense heat, sweating, flushing, and chills. Elevated brain noradrenaline activity at central α2-adrenoceptors is involved in the initiation of hot flashes 2) . According to the report from MHLW of Japan in 2005, there were approximately 9.75 million female employees aged 40 to 59 yr. It is estimated that approximately 2.1-3.8 million female workers may experience work-related difficulties due to hot flashes in the workplace, because the prevalence of mild to severe hot flashes was reported at 22-40% in Japan 3, 4) . Therefore, it is clear that there will be increasing demand for systematic and effective management to support their health 30, 2008 Abstract: The aim of this study is to examine the relationship between mental workload and occurrence of hot flashes. Twelve women with moderate to severe menopausal hot flashes participated in the study. Subjects participated in both a mental arithmetic task (Task) and control (Non-task) experiments. We measured heart rate, heart rate variability, blood pressure, near infrared spectroscopy, skin temperature, and skin potential level. The incidence of hot flashes was greater in Task than in Non-task. No significant differences between before, during and after hot flashes emerged for the percentage of correct responses and reaction time. However, the percentage of correct responses for two subjects among the ten who experienced hot flashes in Task substantially declined during hot flashes. Chest skin temperatures increased in both Task and Non-task during hot flashes, and regional oxygen saturation was significantly higher in Non-task than in Task. The present study suggested that mental workload under time pressure might be a risk factor for menopausal hot flashes, and the performance of most people who experienced hot flashes was not affected by hot flashes, however, work-related difficulties due to cognitive disturbance during hot flashes might arise in some pe...

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“…However, as indicated by quite a few studies, the increased peripheral physiological and limbic area activations were not necessarily a result of emotional arousal [13,24]. These activations may also result from increased cognitive load during cognitive-demanding tasks such as working memory tasks [24,25], mental arithmetic task [26] or voluntary emotional suppression [13]. Thus, it is highly necessary to explore the efficacy of emotion regulation by suppression and reappraisal with a high temporal resolution technique, which is able to isolate the index of cognitive load from that of emotion arousal.…”

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confidence: 99%

Suppression dampens unpleasant emotion faster than reappraisal: Neural dynamics in a Chinese sample

Yuan

Long

Ding

et al. 2014

Sci. China Life Sci.

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The timing dynamics of regulating negative emotion with expressive suppression and cognitive reappraisal were investigated in a Chinese sample. Event-Related Potentials were recorded while subjects were required to view, suppress emotion expression to, or reappraise emotional pictures. The results showed a similar reduction in self-reported negative emotion during both strategies. Additionally, expressive suppression elicited larger amplitudes than reappraisal in central-frontal P3 component (340-480 ms). More importantly, the Late Positive Potential (LPP) amplitudes were decreased in each 200 ms of the 800-1600 ms time intervals during suppression vs. viewing conditions. In contrast, LPP amplitudes were similar for reappraisal and viewing conditions in all the time windows, except for the decreased amplitudes during reappraisal in the 1400-1600 ms. The LPP (but not P3) amplitudes were positively related to negative mood ratings, whereas the amplitudes of P3, rather than LPP, predict self-reported expressive suppression. These results suggest that expressive suppression decreases emotion responding more rapidly than reappraisal, at the cost of greater cognitive resource involvements in Chinese individuals. Event-related potentials, expressive suppression, unpleasant emotion, cognitive reappraisal Citation:Yuan JJ, Long QS, Ding NX, Lou YX, Liu YY, Yang JM. Event-related potentials, expressive suppression, unpleasant emotion, cognitive reappraisal. Sci China Life Sci, 2015, 58: 480 -491, doi: 10.1007 The ability to regulate unpleasant emotion is important for human life in the changing environments [13]. According to the time points in which a strategy has its primary impact in the emotion-generative process, Gross and coworkers distinguished between antecedent-focused and responsefocused strategies [4,5]. The former refers to strategies such as cognitive reappraisal, which requires interpreting emotion stimuli in a detached, emotion-irrelevant manner to modify emotion responses before they are fully blown. Conversely, the latter involves strategies that modulate emotional responses through modifying emotion-expressive behaviors, at the late stage of emotion activity. A typical example of response-focused strategy is expressive suppression [5,6]. Many studies revealed that cognitive reappraisal is effective in decreasing self-reported unpleasant emotion states, emotion-expressive behaviors and in reducing neural activity in the limbic brain system including amygdala and nucleus accumbens [4,79]. In contrast, it was reported that expressive inhibition was ineffective in decreasing the subjective experience of negative emotions such as anxiety [2,4,1012], while significantly increased peripheral physiological responding and limbic system activation [4,6,13]. In the early studies by Gross and colleagues, subjects who were presented with negative stimuli (e.g. films, pictures) received reappraisal, suppression or attending instructions. The results showed that reappraisal resulted in less negative experience, less...

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Relation between asymmetry of prefrontal cortex activities and the autonomic nervous system during a mental arithmetic task: near infrared spectroscopy study

Cited by 166 publications

References 37 publications

Lateralization of expression of neural sympathetic activity to the vessels and effects of carotid baroreceptor stimulation

Lateralization of expression of neural sympathetic activity to the vessels and effects of carotid baroreceptor stimulation

Mental Workload under Time Pressure can Trigger Frequent Hot Flashes in Menopausal Women

Suppression dampens unpleasant emotion faster than reappraisal: Neural dynamics in a Chinese sample

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