Representation of somatosensory inputs within the cortical autonomic network

Goswami, Ruma; Frances, Maria F.; Shoemaker, J. Kevin

doi:10.1016/j.neuroimage.2010.09.050

Cited by 48 publications

(79 citation statements)

References 62 publications

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“…Furthermore, the results of this study apply to a relatively young group of volunteers, hence it would be interesting to study cohorts with larger age range, as brain activation is associated with age [Talelli et al, 2008; Ward and Frackowiak 2003]. The effect sizes reported in this study are consistent with an event related design of a number of subjects typical of most visuomotor fMRI studies, ranging from 5 to 14 [Ehrsson et al, 2000; Galléa et al, 2005, 2008; Goswami et al, 2011; Keisker et al, 2009, 2010; Kuhtz‐Buschbeck et al, 2008; Spraker et al, 2007, 2012; Sulzer et al, 2011; Vaillancourt et al, 2003]. We refer the reader to [Friston, 2012], for a review of this issue.…”

Section: Discussionsupporting

confidence: 65%

Differential involvement of cortical and cerebellar areas using dominant and nondominant hands: An FMRI study

Alahmadi

Pardini

Samson

et al. 2015

Human Brain Mapping

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Motor fMRI studies, comparing dominant (DH) and nondominant (NDH) hand activations have reported mixed findings, especially for the extent of ipsilateral (IL) activations and their relationship with task complexity. To date, no study has directly compared DH and NDH activations using an event‐related visually guided dynamic power‐grip paradigm with parametric (three) forces (GF) in healthy right‐handed subjects. We implemented a hierarchical statistical approach aimed to: (i) identify the main effect networks engaged when using either hand; (ii) characterise DH/NDH responses at different GFs; (iii) assess contralateral (CL)/IL‐specific and hemisphere‐specific activations. Beyond confirming previously reported results, this study demonstrated that increasing GF has an effect on motor response that is contextualised also by the use of DH or NDH. Linear analysis revealed increased activations in sensorimotor areas, with additional increased recruitments of subcortical and cerebellar areas when using the NDH. When looking at CL/IL‐specific activations, CL sensorimotor areas and IL cerebellum were activated with both hands. When performing the task with the NDH, several areas were also recruited including the CL cerebellum. Finally, there were hand‐side‐independent activations of nonmotor‐specific areas in the right and left hemispheres, with the right hemisphere being involved more extensively in sensori‐motor integration through associative areas while the left hemisphere showing greater activation at higher GF. This study shows that the functional networks subtending DH/NDH power‐grip visuomotor functions are qualitatively and quantitatively distinct and this should be taken into consideration when performing fMRI studies, particularly when planning interventions in patients with specific impairments. Hum Brain Mapp 36:5079–5100, 2015. © 2015 Wiley Periodicals, Inc.

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Section: Discussionsupporting

confidence: 65%

Differential involvement of cortical and cerebellar areas using dominant and nondominant hands: An FMRI study

Alahmadi

Pardini

Samson

et al. 2015

Human Brain Mapping

View full text Add to dashboard Cite

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“…However, only the decreased vMPFC activity correlated strongly and inversely with heart rate changes with a time course and magnitude of change that reflected variations in exercise intensities. This pattern has been observed in repeated studies (Goswami et al, 2011;Wong et al, 2007aWong et al, , 2007b and was not affected by one's sex or hand with which the task was performed (Wong et al, 2007a). Other reports examining the brain-heart relationship during cognitive and emotional stressors also emphasize the strong inverse relationship between MPFC and heart rate responses (Critchley, 2004(Critchley, , 2005Critchley et al, 2000Critchley et al, , 2003Critchley et al, , 2004Gianaros et al, 2004Gianaros et al, , 2005Lane et al, 2009).…”

Section: Section 1: Overviewsupporting

confidence: 54%

“…These brain stem pathways receive modulatory inputs from supramedullary centres (Barron and Chokroverty, 1993;Castle et al, 2005;Goswami et al, 2011;Owens and Verberne, 2000) providing the anatomical basis to suspect the cortex as an important contributor to cardiovascular arousal. Krogh and Lindhard (1913) provided the first hint that the cortex was involved in cardiovascular arousal during exercise with their observations of a change in heart rate and respiration at, or prior to, the onset of volitional exercise, ushering the "central command" hypothesis of neural control in exercise states.…”

Section: Section 1: Overviewmentioning

confidence: 99%

Forebrain organization for autonomic cardiovascular control

Shoemaker

Norton

Baker

et al. 2015

Autonomic Neuroscience

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“…Using NIRS assessment, ALEXANDRE et al [31] reported that there was cortical activation of the PMA, MI and S1 regions of COPD patients performing submaximal exercise of their knee extensors. GOSWAMI et al [33] reported that electrical stimulation of the wrist flexors at a submotor threshold increased neural activity in the bilateral posterior insula, ventral medial pre-frontal cortex, subgenualanterior cingulate cortex, mid-cingulate cortex and posterior cingulate cortex. Therefore, we cannot rule out the effect of skeletal muscle afferent activity on cortical activation.…”

Section: Discussionmentioning

confidence: 99%

Exertional dyspnoea and cortical oxygenation in patients with COPD

et al. 2015

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This study was designed to investigate the association of perceived dyspnoea intensity with cortical oxygenation and cortical activation during exercise in patients with chronic obstructive pulmonary disease (COPD) and exertional hypoxaemia.Low-intensity exercise was performed at a constant work rate by patients with COPD and exertional hypoxaemia (n=11) or no hypoxaemia (n=16), and in control participants (n=11). Cortical oxyhaemoglobin (oxy-Hb) and deoxyhaemoglobin (deoxy-Hb) concentrations were measured by multichannel near-infrared spectroscopy. Increased deoxy-Hb is assumed to reflect impaired oxygenation, whereas decreased deoxy-Hb signifies cortical activation.Exercise decreased cortical deoxy-Hb in control and nonhypoxaemic patients. Deoxy-Hb was increased in hypoxaemic patients and oxygen supplementation improved cortical oxygenation. Decreased deoxy-Hb in the pre-motor cortex (PMA) was significantly correlated with exertional dyspnoea in control participants and patients with COPD without hypoxaemia. In contrast, increased cortical deoxy-Hb concentration was correlated with dyspnoea in patients with COPD and hypoxaemia. With the administration of oxygen supplementation, exertional dyspnoea was correlated with decreased deoxy-Hb in the PMA of COPD patients with hypoxaemia.During exercise, cortical oxygenation was impaired in patients with COPD and hypoxaemia compared with control and nonhypoxaemic patients; this difference was ameliorated with oxygen supplementation. Exertional dyspnoea was related to activation of the pre-motor cortex in COPD patients. @ERSpublications Exertional dyspnoea was related to activation of the pre-motor cortex in COPD patients

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Representation of somatosensory inputs within the cortical autonomic network

Cited by 48 publications

References 62 publications

Differential involvement of cortical and cerebellar areas using dominant and nondominant hands: An FMRI study

Differential involvement of cortical and cerebellar areas using dominant and nondominant hands: An FMRI study

Forebrain organization for autonomic cardiovascular control

Exertional dyspnoea and cortical oxygenation in patients with COPD

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