NDLI: Band specific changes in thalamocortical synchrony in field potentials after Cardiac Arrest induced global hypoxia

Content Provider	IEEE Xplore Digital Library
Author	Maybhate, A. Cheng Chen Akbari, Y. Sherman, D.L. Kaiquan Shen Xiaofeng Jia Thakor, N.V.
Copyright Year	2013
Description	Author affiliation: Univ. of California, Irvine, Irvine, CA, USA (Akbari, Y.) \|\| Dept. of Biomed. Eng., Johns Hopkins Univ., Baltimore, MD, USA (Maybhate, A.; Cheng Chen; Sherman, D.L.; Xiaofeng Jia; Thakor, N.V.) \|\| Singapore Inst. of Neurotechnology, Nat. Univ. of Singapore, Singapore, Singapore (Kaiquan Shen)
Abstract	Cardiac Arrest (CA) leads to a global hypoxic-ischemic injury in the brain leading to a poor neurological outcome. Understanding the mechanisms of functional disruption in various regions of the brain may be essential for the development of improved diagnostic and therapeutic solutions. Using controlled laboratory experiment with animal models of CA, our primary focus here is on understanding the functional changes in the thalamus and the cortex, associated with the injury and acute recovery upon resuscitation. Specifically, to study the changes in thalamocortical synchrony through these periods, we acquired local field potentials (LFPs) from the ventroposterior lateral (VPL) nucleus of the thalamus and the forelimb somatosensory cortex (S1FL) in rats after asphyxial CA. Band-specific relative Hilbert phases were used to analyze synchrony between the LFPs. We observed that the CA induced global ischemia changes the local phase-relationships by introducing a phase-lag in both the thalamus and the cortex, while the synchrony between the two regions is nearly completely lost after CA.
Starting Page	7112
Ending Page	7115
File Size	1133970
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6611197
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cardiac arrest Rats Injuries Brain models Electric potential
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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