BibTex format
@article{Tottrup:2020:10.1109/TNSRE.2020.3039854,
author = {Tottrup, L and Atashzar, SF and Farina, D and Kamavuako, EN and Jensen, W},
doi = {10.1109/TNSRE.2020.3039854},
journal = {IEEE Transactions on Neural Systems and Rehabilitation Engineering},
pages = {2691--2698},
title = {Nerve injury decreases hyperacute resting-state connectivity between the anterior cingulate and primary somatosensory cortex in anesthetized rats},
url = {http://dx.doi.org/10.1109/TNSRE.2020.3039854},
volume = {28},
year = {2020}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - A better understanding of neural pain processing and of the development of pain over time, is critical to identify objective measures of pain and to evaluate the effect of pain alleviation therapies. One issue is, that the brain areas known to be related to pain processing are not exclusively responding to painful stimuli, and the neuronal activity is also influenced by other brain areas. Functional connectivity reflects synchrony or covariation of activation between groups of neurons. Previous studies found changes in connectivity days or weeks after pain induction. However, less in known on the temporal development of pain. Our objective was therefore to investigate the interaction between the anterior cingulate cortex (ACC) and primary somatosensory cortex (SI) in the hyperacute (minute) and sustained (hours) response in an animal model of neuropathic pain. Intra-cortical local field potentials (LFP) were recorded in 18 rats. In 10 rats the spared nerve injury model was used as an intervention. The intra-cortical activity was recorded before, immediately after, and three hours after the intervention. The interaction was quantified as the calculated correlation and coherence. The results from the intervention group showed a decrease in correlation between ACC and SI activity, which was most pronounced in the hyperacute phase but a longer time frame may be required for plastic changes to occur. This indicated that both SI and ACC are involved in hyperacute pain processing.
AU - Tottrup,L
AU - Atashzar,SF
AU - Farina,D
AU - Kamavuako,EN
AU - Jensen,W
DO - 10.1109/TNSRE.2020.3039854
EP - 2698
PY - 2020///
SN - 1534-4320
SP - 2691
TI - Nerve injury decreases hyperacute resting-state connectivity between the anterior cingulate and primary somatosensory cortex in anesthetized rats
T2 - IEEE Transactions on Neural Systems and Rehabilitation Engineering
UR - http://dx.doi.org/10.1109/TNSRE.2020.3039854
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000613615700011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://ieeexplore.ieee.org/document/9270573
UR - http://hdl.handle.net/10044/1/86597
VL - 28
ER -