chronic recording
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2022 ◽  
Vol 15 ◽  
Author(s):  
Grady W. Jensen ◽  
Patrick van der Smagt ◽  
Harald Luksch ◽  
Hans Straka ◽  
Tobias Kohl

Knowledge about body motion kinematics and underlying muscle contraction dynamics usually derives from electromyographic (EMG) recordings. However, acquisition of such signals in snakes is challenging because electrodes either attached to or implanted beneath the skin may unintentionally be removed by force or friction caused from undulatory motion, thus severely impeding chronic EMG recordings. Here, we present a reliable method for stable subdermal implantation of up to eight bipolar electrodes above the target muscles. The mechanical stability of the inserted electrodes and the overnight coverage of the snake body with a “sleeping bag” ensured the recording of reliable and robust chronic EMG activity. The utility of the technique was verified by daily acquisition of high signal-to-noise activity from all target sites over four consecutive days during stimulus-evoked postural reactions in Amazon tree boas and Western diamondback rattlesnakes. The successful demonstration of the chronic recording suggests that this technique can improve acute experiments by enabling the collection of larger data sets from single individuals.


Author(s):  
Marie Palma ◽  
Mehrdad Khoshnevis ◽  
Marie Lion ◽  
Cyril Zenga ◽  
Samy Kefs ◽  
...  

2021 ◽  
Author(s):  
Rik J. J. van Daal ◽  
Çağatay Aydin ◽  
Frédéric Michon ◽  
Arno A. A. Aarts ◽  
Michael Kraft ◽  
...  

2021 ◽  
pp. 100467
Author(s):  
Alexander B. Silva ◽  
Ankit N. Khambhati ◽  
Benjamin A. Speidel ◽  
Edward F. Chang ◽  
Vikram R. Rao

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Thomas Zhihao Luo ◽  
Adrian Gopnik Bondy ◽  
Diksha Gupta ◽  
Verity Alexander Elliott ◽  
Charles D Kopec ◽  
...  

The use of Neuropixels probes for chronic neural recordings is in its infancy and initial studies leave questions about long-term stability and probe reusability unaddressed. Here, we demonstrate a new approach for chronic Neuropixels recordings over a period of months in freely moving rats. Our approach allows multiple probes per rat and multiple cycles of probe reuse. We found that hundreds of units could be recorded for multiple months, but that yields depended systematically on anatomical position. Explanted probes displayed a small increase in noise compared to unimplanted probes, but this was insufficient to impair future single-unit recordings. We conclude that cost-effective, multi-region, and multi-probe Neuropixels recordings can be carried out with high yields over multiple months in rats or other similarly sized animals. Our methods and observations may facilitate the standardization of chronic recording from Neuropixels probes in freely moving animals.


2020 ◽  
Vol 129 (4) ◽  
pp. 992-1005
Author(s):  
Andrew J. Foster ◽  
Jade P. Marrow ◽  
Melissa A. Allwood ◽  
Keith R. Brunt ◽  
Jeremy A. Simpson

We have demonstrated for the first time in mice that radiotelemetry is an effective tool for the continuous and chronic recording of intrathoracic pressure (ITP) to facilitate circadian rhythm analyses. We show that continuous 24-h hypoxic stress alters the circadian rhythms of heart rate, body temperature, activity, and respiratory parameters, acutely and perpetually, through normoxic recovery. Radiotelemetry of ITP can complement traditional methods for evaluating respiratory function and better our understanding of respiratory pathophysiology.


2020 ◽  
Vol 17 (2) ◽  
pp. 026037 ◽  
Author(s):  
Elissa J Welle ◽  
Paras R Patel ◽  
Joshua E Woods ◽  
Artin Petrossians ◽  
Elena della Valle ◽  
...  

Author(s):  
Thomas Zhihao Luo ◽  
Adrian G. Bondy ◽  
Diksha Gupta ◽  
Verity A. Elliott ◽  
Charles D. Kopec ◽  
...  

AbstractThe use of Neuropixels probes for chronic neural recordings is in its infancy and initial studies leave questions about long-term stability and probe reusability unaddressed. Here we demonstrate a new approach for chronic Neuropixels recordings over a period of months in freely moving rats. Our approach allows multiple probes per rat and multiple cycles of probe reuse. We found that hundreds of units could be recorded for multiple months, but that yields depended systematically on anatomical position. Explanted probes displayed a small increase in noise compared to unimplanted probes, but this was insufficient to impair future single-unit recordings. We conclude that cost-effective, multi-region, and multi-probe Neuropixels recordings can be carried out with high yields over multiple months in rats or other similarly sized animals. Our methods and observations may facilitate the standardization of chronic recording from Neuropixels probes in freely moving animals.


2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Elissa Joy Welle ◽  
Ahmad A. Jiman ◽  
Paras R. Patel ◽  
Joshua E. Woods ◽  
Julianna M. Richie ◽  
...  

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