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The Reach Cage environment for wireless neural recordings during structured goal-directed behavior of unrestrained monkeys

View ORCID ProfileMichael Berger, Alexander Gail
doi: https://doi.org/10.1101/305334
Michael Berger
1Cognitive Neuroscience Laboratory, German Primate Center - Leibniz-Institute for Primate Research, Göttingen, Germany
2Faculty of Biology and Psychology, University of Göttingen, Göttingen, Germany
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  • ORCID record for Michael Berger
Alexander Gail
1Cognitive Neuroscience Laboratory, German Primate Center - Leibniz-Institute for Primate Research, Göttingen, Germany
2Faculty of Biology and Psychology, University of Göttingen, Göttingen, Germany
3Leibniz-ScienceCampus Primate Cognition, Göttingen, Germany
4Bernstein Center for Computational Neuroscience, Göttingen, Germany
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Abstract

Sensorimotor neuroscience with non-human primates usually mandates partial movement restraint to confine behavioral parameters and protect recording equipment. We present the Reach Cage and a versatile visuo-haptic interaction system (MaCaQuE) for investigating goal-directed whole-body movements of unrestrained monkeys. Two rhesus monkeys learned to conduct instructed reaches towards targets flexibly positioned in the cage. 3-D wrist movements were tracked in real time with video motion capture. We wirelessly recorded up to 128 broad-band neural signals at single unit resolution from three cortical sensorimotor areas. We demonstrate that repeated movements show small enough trial-to-trial variation to allow grouping of data for sufficient statistical power, and single neuron activity is selective for different reach movements. In conclusion, the Reach Cage in combination with wireless recordings allows correlating multi-channel neural dynamics with trained repetitive simpler movements, equivalent to conventional experiments, but also more complex goal-directed whole-body motor behaviors, like walk-and-reach movements.

Footnotes

  • Address: Cognitive Neuroscience Laboratory, German Primate Center - Leibniz-Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted April 24, 2018.
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The Reach Cage environment for wireless neural recordings during structured goal-directed behavior of unrestrained monkeys
Michael Berger, Alexander Gail
bioRxiv 305334; doi: https://doi.org/10.1101/305334
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The Reach Cage environment for wireless neural recordings during structured goal-directed behavior of unrestrained monkeys
Michael Berger, Alexander Gail
bioRxiv 305334; doi: https://doi.org/10.1101/305334

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