EthoLoop

EthoLoop enables real-time optical tracking and deep-learning behavioral analysis of freely roaming animals to study neuroethology, spatial navigation, and hippocampal place-cell-like activity in naturalistic three-dimensional or nocturnal environments.


Key Features:

  • Real-time optical tracking: Performs continuous optical tracking of animals in naturalistic, three-dimensional and nocturnal environments.
  • 3D tracking technology: Computes three-dimensional trajectories of subjects for spatial analyses.
  • Deep-learning behavioral analysis: Applies deep-learning methods for high-resolution interpretation of behavior from continuous close-up views.
  • Continuous close-up views: Captures sustained close-up imaging of tracked individuals to enable detailed behavioral monitoring.
  • Remote-controlled stimulus-reward boxes: Integrates remote-controlled boxes to deliver stimuli and rewards for classical conditioning and optogenetic stimulation.
  • Wirelessly controlled portable devices: Uses wirelessly controlled portable devices to trigger interactions and stimuli in the field.
  • Integration with wireless neurophysiology: Combines 3D tracking data with wireless neurophysiology recordings to correlate behavior and neural activity.
  • Demonstrated hippocampal place-cell-like activity: Has been used to reveal place-cell-like activity in the hippocampus of freely moving primates.

Scientific Applications:

  • Neuroethology in freely roaming animals: Quantifies naturalistic behavior and interactions in three-dimensional or nocturnal settings.
  • Spatial navigation and memory: Maps spatial navigation and memory-related hippocampal activity, including place-cell-like responses in primates.
  • Behavior–neural correlation: Correlates three-dimensional movement trajectories with wireless neurophysiology recordings.
  • Closed-loop conditioning and optogenetics: Implements behavior-contingent classical conditioning and optogenetic stimulation in naturalistic environments.

Methodology:

Real-time optical tracking and three-dimensional tracking are combined with deep-learning behavioral analysis, and tracking data are integrated with wireless neurophysiology recordings.

Topics

Details

License:
LGPL-3.0
Tool Type:
workflow
Programming Languages:
C++
Added:
1/18/2021
Last Updated:
3/8/2021

Operations

Publications

Nourizonoz A, Zimmermann R, Ho CLA, Pellat S, Ormen Y, Prévost-Solié C, Reymond G, Pifferi F, Aujard F, Herrel A, Huber D. EthoLoop: automated closed-loop neuroethology in naturalistic environments. Nature Methods. 2020;17(10):1052-1059. doi:10.1038/s41592-020-0961-2. PMID:32994566.

PMID: 32994566
Funding: - Human Frontier Science Program: RGP0024/2016 - Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung: 310030E_190060

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