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Gramophone complete system
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Gramophone complete system

from Femtonics

Femtonics Gramophone is a behavior studying system which enables head-fixed but free-to-move rodents to enter a virtual reality space.
Lead time:
Max. 10 weeks
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Gramophone is a single-dimension locomotion tracking device. It allows a head restrained mouse to run on the disk and to respond to visual or other stimuli. The speed and the direction of the running are registered by software-controlled manner.

The monitor shows visual stimuli such as predefined patterns or customizable linear mazes that change in accordance with the mouse’s
movement on the rotating disk, creating a virtual reality where the animal can navigate itself by moving the disk. It can be used for high accuracy velocity recording in conjunction with a two-photon microscope, or as a control interface for behavioral training in a virtual linear maze. The behavior response and the two-photon Ca2+ signals can be recorded simultaneously and aligned with each other. The Gramophone can be coupled with multiple operant devices such as a water reward, air puff, etc., and the spinning speed of the disk is recorded in a triggered manner.

Kit contains:
Laptop
Monitor
Gramophone kit with velocity recording:  Gramophone skeleton; Spare disk; Stabilized head holder; Set of 10 head-plates; Packaging

Features
  • 14400 counts/rotation angular resolution
  • Up to 500 Hz sampling frequency
  • Robust and durable construction
  • Easily removable and cleanable running surface
  • Easily adjustable head fixation for in vivo imaging and electrophysiology
  • Programmable inputs and outputs
  • Open-source Python 3 software for recording locomotion and conditioning mice
Benefits
  • Flexible usability: mobile, compact system for behavioral training, locomotion measurements, microscopic imaging, electrophysiological studies, etc.
  • Easily integratable to your own system
  • A two-point head holder with adjustable height fixes the rodent’s head, keeping the skull stable during moving
  • Spinning speed is recorded with ~3 ms temporal resolution, and it is digitalized with ~1500 data points per rotation
  • Velocity traces are saved in .csv format which can be imported to MES with Behavior Importer Modul or to other third-party programs with precise timing
  • 8 different built-in image pattern with adjustable RGB color
  • The refresh rate of the visual stimuli followed the movement is 16 ms
  • Custom mazes and behavior rules can be designed with minimal programming knowledge
  • Velocity or displacement rules can be easily applied
  • Three TTL output channels with 3.3V logic can be controlled by the system during complex behavior protocol, one analog input channel can be recorded with 10-bit resolution
  • multiprocessing for frame generation provides flawless run on multiple, long corridors• a single PC can drive up to three VR system
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Descriptions

Gramophone is a single-dimension locomotion tracking device. It allows a head restrained mouse to run on the disk and to respond to visual or other stimuli. The speed and the direction of the running are registered by software-controlled manner.

The monitor shows visual stimuli such as predefined patterns or customizable linear mazes that change in accordance with the mouse’s
movement on the rotating disk, creating a virtual reality where the animal can navigate itself by moving the disk. It can be used for high accuracy velocity recording in conjunction with a two-photon microscope, or as a control interface for behavioral training in a virtual linear maze. The behavior response and the two-photon Ca2+ signals can be recorded simultaneously and aligned with each other. The Gramophone can be coupled with multiple operant devices such as a water reward, air puff, etc., and the spinning speed of the disk is recorded in a triggered manner.

Kit contains:
Laptop
Monitor
Gramophone kit with velocity recording:  Gramophone skeleton; Spare disk; Stabilized head holder; Set of 10 head-plates; Packaging

Features
  • 14400 counts/rotation angular resolution
  • Up to 500 Hz sampling frequency
  • Robust and durable construction
  • Easily removable and cleanable running surface
  • Easily adjustable head fixation for in vivo imaging and electrophysiology
  • Programmable inputs and outputs
  • Open-source Python 3 software for recording locomotion and conditioning mice
Benefits
  • Flexible usability: mobile, compact system for behavioral training, locomotion measurements, microscopic imaging, electrophysiological studies, etc.
  • Easily integratable to your own system
  • A two-point head holder with adjustable height fixes the rodent’s head, keeping the skull stable during moving
  • Spinning speed is recorded with ~3 ms temporal resolution, and it is digitalized with ~1500 data points per rotation
  • Velocity traces are saved in .csv format which can be imported to MES with Behavior Importer Modul or to other third-party programs with precise timing
  • 8 different built-in image pattern with adjustable RGB color
  • The refresh rate of the visual stimuli followed the movement is 16 ms
  • Custom mazes and behavior rules can be designed with minimal programming knowledge
  • Velocity or displacement rules can be easily applied
  • Three TTL output channels with 3.3V logic can be controlled by the system during complex behavior protocol, one analog input channel can be recorded with 10-bit resolution
  • multiprocessing for frame generation provides flawless run on multiple, long corridors• a single PC can drive up to three VR system

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Q&As
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