Midcingulate somatomotor and autonomic functions

Amiez, Céline; Procyk, Emmanuel

doi:10.1016/b978-0-444-64196-0.00004-2

Cited by 13 publications

(11 citation statements)

References 145 publications

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“…The aMCC may thus integrate information regarding thirst with somatomotor information regarding preparation for a drinking response (18). This facilitation is consistent with a fundamental role for the aMCC in motivating drinking in response to thirst, and with evidence that points to a general integrative role for the midcingulate cortex concerning cognitive, somatomotor, and autonomic information (35).…”

Section: Comparison Of Brain Activation During Imagine Thirst and Imasupporting

confidence: 75%

Regional brain responses associated with using imagination to evoke and satiate thirst

Saker

Carey²,

Grohmann

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

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In response to dehydration, humans experience thirst. This subjective state is fundamental to survival as it motivates drinking, which subsequently corrects the fluid deficit. To elicit thirst, previous studies have manipulated blood chemistry to produce a physiological thirst stimulus. In the present study, we investigated whether a physiological stimulus is indeed required for thirst to be experienced. Functional MRI (fMRI) was used to scan fully hydrated participants while they imagined a state of intense thirst and while they imagined drinking to satiate thirst. Subjective ratings of thirst were significantly higher for imagining thirst compared with imagining drinking or baseline, revealing a successful dissociation of thirst from underlying physiology. The imagine thirst condition activated brain regions similar to those reported in previous studies of physiologically evoked thirst, including the anterior midcingulate cortex (aMCC), anterior insula, precentral gyrus, inferior frontal gyrus, middle frontal gyrus, and operculum, indicating a similar neural network underlies both imagined thirst and physiologically evoked thirst. Analogous brain regions were also activated during imagined drinking, suggesting the neural representation of thirst contains a drinking-related component. Finally, the aMCC showed an increase in functional connectivity with the insula during imagined thirst relative to imagined drinking, implying functional connectivity between these two regions is needed before thirst can be experienced. As a result of these findings, this study provides important insight into how the neural representation of subjective thirst is generated and how it subsequently motivates drinking behavior.

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Section: Comparison Of Brain Activation During Imagine Thirst and Imasupporting

confidence: 75%

Regional brain responses associated with using imagination to evoke and satiate thirst

Saker

Carey²,

Grohmann

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

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“…36 However, this method is not optimal for use in volumetric analysis of the rostral cingulate gyrus for several reasons. First, the superior cingulate gyrus is present in 30%-75% of cases and more often is in the left hemisphere, 16,[24][25][26] which results in substantial interindividual or hemispheric variation. Second, the volume of the superior cingulate gyrus and the volume of the ventral rostral cingulate gyrus in the left (r = −0.48) and right (r = −0.42) hemispheres are negatively associated.…”

Section: Discussionmentioning

confidence: 99%

“…11,15 The MCC can be further subdivided into anterior and posterior subregions and contributes to a brain network that produces adaptive responses to environmental stimu li. 16 Shackman and colleagues 10 reviewed physiologic, anatomic and functional studies and suggested an "adaptive control hypothesis," in which the anterior MCC is a hub for integrating information about pain, negative affect and cognitive control to mediate aversively motivated behaviours. As well, Vogt 11 considered the mediation of decision-making related to reward-approach versus fear-avoidance to be the major function of the anterior MCC.…”

Section: Introductionmentioning

confidence: 99%

“…23 Furthermore, automated analyses often do not consider the superior cingulate gyrus, which originates rostrally to the main (i.e., ventral) cingulate gyrus, runs dorsally parallel to it and exists in 30% to 75% of cases. 16,[24][25][26] The absence (i.e., single gyrus-sulcus pattern) or presence (i.e., double-parallel gyri-sulci pattern) of the superior cingulate gyrus affects the cytoarchitectural features and volume of the rostral cingulate cortex. 14,23,25,27 Therefore, the superior cingulate gyrus or paracingulate sulcus should be considered in structural analyses of the rostral cingulate cortex.…”

Section: Introductionmentioning

confidence: 99%

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Effects of prenatal alcohol exposure on neurobehavioural development and volume of rostral cingulate cortex subregions

Aghamohammadi‐Sereshki

McMorris

Gibbard

et al. 2022

jpn

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Background: Maternal alcohol consumption during pregnancy can have widespread and long-lasting effects on children's cognition, behaviour, brain function and structure. The pregenual anterior cingulate cortex (ACC) and the anterior midcingulate cortex (MCC) mediate emotional and cognitive behaviours that are affected by prenatal alcohol exposure. However, the neurobehavioural development of the pregenual ACC and anterior MCC has not been examined in people with prenatal alcohol exposure. Methods: We recruited 30 children and adolescents with prenatal alcohol exposure and 50 age-and gender-matched unexposed controls. We acquired structural MRI data sets on a 3 T scanner. We manually delineated 2 areas of the rostral cingulate cortex -the pregenual ACC and the anterior MCC -and compared them between groups. We measured behavioural and emotional problems using the Behaviour Assessment System for Children, 2nd Edition, Parent Rating Scale, and then explored their associations with rostral cingulate cortex volumes. Results: Intracranialnormalized volumes of the right pregenual ACC and the right total rostral cingulate cortex were significantly smaller in individuals with prenatal alcohol exposure than in unexposed controls. The volume of the right anterior MCC had a significant positive association with scores on the Internalizing Problems scale in individuals with prenatal alcohol exposure. Limitations: This study was cross-sectional, and detailed information about the timing and amount of exposure was not always available. Conclusion: Prenatal alcohol exposure is associated with lower volumes in the right pregenual ACC. This finding may underlie some of the emotional and behavioural problems experienced by individuals with prenatal alcohol exposure.Prenatal alcohol exposure and the structure of the rostral cingulate cortex

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“…Electrodermal activity (EDA), also known as skin conductance, reflects the activity of the sympathetic nerve on sweat glands ( 29 ). Epileptic seizures have shown to transiently increase EDA ( 30 ).…”

Section: Seizure Detection Devices (Sdd)mentioning

confidence: 99%

The Prospects of Non-EEG Seizure Detection Devices in Dogs

2022

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The unpredictable nature of seizures is challenging for caregivers of epileptic dogs, which calls the need for other management strategies such as seizure detection devices. Seizure detection devices are systems that rely on non-electroencephalographic (non-EEG) ictal changes, designed to detect seizures. The aim for its use in dogs would be to provide owners with a more complete history of their dog's seizures and to help install prompt (and potentially life-saving) intervention. Although seizure detection via wearable intracranial EEG recordings is associated with a higher sensitivity in humans, there is robust evidence for reliable detection of generalized tonic-clonic seizures (GTCS) using non-EEG devices. Promising non-EEG changes described in epileptic humans, include heart rate variability (HRV), accelerometry (ACM), electrodermal activity (EDA), and electromyography (EMG). Their sensitivity and false detection rate to detect seizures vary, however direct comparison of studies is nearly impossible, as there are many differences in study design and standards for testing. A way to improve sensitivity and decrease false-positive alarms is to combine the different parameters thereby profiting from the strengths of each one. Given the challenges of using EEG in veterinary clinical practice, non-EEG ictal changes could be a promising alternative to monitor seizures more objectively. This review summarizes various seizure detection devices described in the human literature, discusses their potential use and limitations in veterinary medicine and describes what is currently known in the veterinary literature.

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Midcingulate somatomotor and autonomic functions

Cited by 13 publications

References 145 publications

Regional brain responses associated with using imagination to evoke and satiate thirst

Regional brain responses associated with using imagination to evoke and satiate thirst

Effects of prenatal alcohol exposure on neurobehavioural development and volume of rostral cingulate cortex subregions

The Prospects of Non-EEG Seizure Detection Devices in Dogs

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