scholarly journals Mapping short-latency cortical responses to electrical stimulation of thalamic motor nuclei by increasing sampling rate – A technical report

2020 ◽  
Vol 131 (1) ◽  
pp. 142-144 ◽  
Author(s):  
Emilia Toth ◽  
Ganne Chaitanya ◽  
Sandipan Pati
Keyword(s):  
Electrical Stimulation ◽  
Sampling Rate ◽  
Short Latency ◽  
Technical Report ◽  
Cortical Responses ◽  
Motor Nuclei ◽  
Stimulation Of

scholarly journals Mapping short-latency cortical responses to electrical stimulation of thalamic motor nuclei by increasing sampling rate - a technical report

2019 ◽  
Author(s):  
Emilia Toth ◽  
Ganne Chaitanya ◽  
Sandipan Pati
Keyword(s):  
Electrical Stimulation ◽  
Sampling Rate ◽  
Short Latency ◽  
Mapping Technique ◽  
Anterior Nucleus ◽  
Human Thalamus ◽  
Technical Report ◽  
Cortical Responses ◽  
Eloquent Cortex ◽  
Stimulation Of

AbstractDirect electrical stimulation (DES) of the cortex is a clinically indispensable brain mapping technique that provides reliable information about the distribution of eloquent cortex and its connectivity to the white matter bundles. Here we present a technical report on mapping the short latency cortical responses to stimulation of the ventral anterior nucleus of human thalamus. Reliable downstream responses were noted in the regions connected to the ventral anterior nucleus i.e. superior and inferior frontal gyri, supplementary motor area and limbic substructures (cingulate gyrus and hippocampus).

Human intracranially-recorded cortical responses evoked by painful electrical stimulation of the sural nerve

NeuroImage ◽  
2007 ◽  
Vol 34 (2) ◽  
pp. 743-763 ◽  
Author(s):  
R. Dowman ◽  
T. Darcey ◽  
H. Barkan ◽  
V. Thadani ◽  
D. Roberts
Keyword(s):  
Electrical Stimulation ◽  
Sural Nerve ◽  
Cortical Responses ◽  
Stimulation Of

Suppression of the vestibular short-latency evoked potential by electrical stimulation of the central vestibular system

2018 ◽  
Vol 361 ◽  
pp. 23-35 ◽  
Author(s):  
Christopher J. Pastras ◽  
Ian S. Curthoys ◽  
Ljiljana Sokolic ◽  
Daniel J. Brown
Keyword(s):  
Electrical Stimulation ◽  
Vestibular System ◽  
Evoked Potential ◽  
Short Latency ◽  
Stimulation Of

scholarly journals Primary auditory cortical responses to electrical stimulation of the thalamus

2014 ◽  
Vol 111 (5) ◽  
pp. 1077-1087 ◽  
Author(s):  
Craig A. Atencio ◽  
Jonathan Y. Shih ◽  
Christoph E. Schreiner ◽  
Steven W. Cheung
Keyword(s):  
Electrical Stimulation ◽  
Electrical Current ◽  
Neurofibromatosis Type ◽  
Cortical Activation ◽  
Auditory Prosthesis ◽  
Thalamic Stimulation ◽  
Cortical Responses ◽  
Neurofibromatosis Type Ii ◽  
Pure Tones ◽  
Stimulation Of

Cochlear implant electrical stimulation of the auditory system to rehabilitate deafness has been remarkably successful. Its deployment requires both an intact auditory nerve and a suitably patent cochlear lumen. When disease renders prerequisite conditions impassable, such as in neurofibromatosis type II and cochlear obliterans, alternative treatment targets are considered. Electrical stimulation of the cochlear nucleus and midbrain in humans has delivered encouraging clinical outcomes, buttressing the promise of central auditory prostheses to mitigate deafness in those who are not candidates for cochlear implantation. In this study we explored another possible implant target: the auditory thalamus. In anesthetized cats, we first presented pure tones to determine frequency preferences of thalamic and cortical sites. We then electrically stimulated tonotopically organized thalamic sites while recording from primary auditory cortical sites using a multichannel recording probe. Cathode-leading biphasic thalamic stimulation thresholds that evoked cortical responses were much lower than published accounts of cochlear and midbrain stimulation. Cortical activation dynamic ranges were similar to those reported for cochlear stimulation, but they were narrower than those found through midbrain stimulation. Our results imply that thalamic stimulation can activate auditory cortex at low electrical current levels and suggest an auditory thalamic implant may be a viable central auditory prosthesis.

Human intracranially recorded cortical responses evoked by painful electrical stimulation of the sural nerve

Acute Pain ◽  
2007 ◽  
Vol 9 (1) ◽  
pp. 47
Author(s):  
R. Dowman ◽  
T. Darcey ◽  
H. Barkan ◽  
V. Thadani ◽  
D. Roberts
Keyword(s):  
Electrical Stimulation ◽  
Sural Nerve ◽  
Cortical Responses ◽  
Stimulation Of

Effect of paraventricular nucleus lesions on cardiovascular responses elicited by stimulation of the subfornical organ in the rat

1985 ◽  
Vol 63 (7) ◽  
pp. 816-824 ◽  
Author(s):  
Michael B. Gutman ◽  
John Ciriello ◽  
Gordon J. Mogenson
Keyword(s):  
Electrical Stimulation ◽  
Arterial Pressure ◽  
Paraventricular Nucleus ◽  
Pressor Response ◽  
Cardiovascular Responses ◽  
Subfornical Organ ◽  
Short Latency ◽  
Peak Latency ◽  
Ganglionic Blockade ◽  
Stimulation Of

It has recently been reported that stimulation of the region of the subfornical organ (SFO) elicits an increase in arterial pressure. However, the mechanisms and forebrain neural circuitry that are involved in this cardiovascular response have not been elucidated. The present study was done in urethane-anaesthetized rats to determine whether selective activation of SFO neurons elicit cardiovascular responses and whether these responses were mediated by a pathway involving the paraventricular nucleus of the hypothalamus (PVH). Stimulation sites which required the lowest threshold current (30 μA) to elicit a pressor response and at which the largest rise in mean arterial pressure (MAP; 22 ± 2 mmHg) was elicited at a constant current intensity (150 μA) were histologically localized in the region of the SFO. Short (mean peak latency; 4 ± 2 s) and long (mean peak latency; 61 ± 8 s) latency increases in MAP were observed during and after electrical stimulation of the SFO, respectively. Cardiac slowing accompanied the short latency pressor response and cardioacceleration was observed in most (57%) of the cases to accompany the late pressor response. Microinjection of L-glutamate into the SFO consistently elicited cardiovascular responses qualitatively similar to those observed during electrical stimulation. Ganglionic blockade abolished the short latency increase in MAP and the accompanying bradycardia. However, the long latency pressor and cardioacceleratory responses were not altered by ganglionic blockade and adrenalectomy. Selective bilateral electrolytic or kainic acid lesions of the region of the PVH significantly attenuated the cardiovascular responses elicited by stimulation of the SFO. These data suggest that activation of neurons in the SFO elicit cardiovascular responses partially mediated by sympathetic outflow through a neural pathway involving the PVH.

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