Rodent Tremor Monitor
Automated tremor detection system for quantitative analysis of involuntary movements in rodents using an ultra-sensitive movement sensor with 1-128 Hz frequency range.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The Rodent Tremor Monitor provides automated detection and quantitative analysis of involuntary movements in mice and rats using an ultra-sensitive movement sensor from Measurement Computing. The system measures tremor frequency up to 128 Hz with adjustable data collection intervals, enabling researchers to characterize motor dysfunction patterns in neurological disease models and evaluate therapeutic interventions.
Each station consists of a sound-attenuating isolation cubicle with programmatically controlled visible LED and IR lighting, automated air circulation, and a camera holder for video recording. A species-appropriate acrylic enclosure is positioned on a tremor sensor platform inside the chamber. The wireless communication system supports up to 8 monitoring stations controlled by up to 16 chamber control boxes, allowing simultaneous assessment of multiple subjects with recording durations up to 60 minutes per session.
How It Works
The system employs ultra-sensitive piezoelectric disk sensors positioned beneath each rodent enclosure to detect minute mechanical vibrations transmitted through the cage structure. When an animal exhibits tremulous movements, the resulting mechanical energy is converted to electrical signals by the piezoelectric transducer, which generates voltage proportional to the applied mechanical stress.
Signal processing algorithms analyze the frequency spectrum of detected vibrations within the 1-128 Hz range, distinguishing involuntary tremor from voluntary locomotor activity. The system applies digital filtering to isolate tremor-specific frequency bands while rejecting environmental noise and gross motor movements that fall outside the characteristic tremor range.
Data acquisition occurs at user-defined intervals with a standard 10-minute habituation period to minimize stress-related artifacts. The wireless communication protocol enables real-time data transmission from chamber control boxes to the main controller, allowing continuous monitoring across multiple stations without signal interference.
Features & Benefits
mouse_cage_dimensions
- 17 x 17 x 25cm (width x depth x height)
rat_cage_dimensions
- 26 x 26 x 30cm (width x depth x height)
frequency_range
- Up to 128 Hz
recording_duration
- Up to 60 minutes
stations_supported
- Up to 8 stations
control_boxes_supported
- Up to 16 chamber control boxes
sensor_type
- Ultra-sensitive movement sensor (Measurement Computing)
connectivity
- USB (RS-232) cable
wireless_communication
- Between main control box and chamber control boxes
data_intervals
- Adjustable intervals (1-minute or 2-minutes)
habituation_period
- 10 minutes
cage_door_type
- Front circular door - opens in the middle
removable_tray
- Feces and urine tray
Behavioral Construct
- Motor Control
- Movement Disorders
- Involuntary Movements
Automation Level
- fully-automated
lighting
- Programmatically controlled visible LED and IR illumination
camera_holder
- Included
air_circulation
- Automated
Material
- Acrylic
- Multi-layer sound-proof insulation material
Dimensions
- 50cm x 40cm x 50cm
Research Domain
- Aging Research
- Behavioral Pharmacology
- Motor Function
- Neurodegeneration
- Neuroscience
- Toxicology
Species
- Mouse
- Rat
Weight
- 21.0 kg
Dimensions
- L: 43.2 mm
- W: 38.0 mm
- H: 27.9 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Frequency Range | 1-128 Hz detection capability | Many systems limited to narrower frequency bands | Captures the full spectrum of pathological tremors from parkinsonian to high-frequency motor oscillations |
| Multi-Station Capacity | Up to 8 monitoring stations with 16 control boxes | Single or limited multi-chamber configurations | Enables simultaneous assessment of multiple subjects for higher experimental throughput |
| Wireless Communication | Wireless links between chambers and main controller | Wired connections requiring fixed layouts | Provides flexible laboratory arrangements without cable management constraints |
| Recording Duration | Up to 60 minutes per session | Shorter recording periods in many systems | Supports extended observation periods for circadian studies and prolonged pharmacological assessments |
| Environmental Control | Sound-attenuating chambers with automated lighting and air circulation | Basic enclosures with limited environmental control | Minimizes confounding variables from acoustic stress and environmental fluctuations |
| Species Accommodation | Dedicated mouse (17x17x25cm) and rat (26x26x30cm) enclosures | Single cage size or manual size adjustments | Optimizes subject comfort and natural posture for more reliable tremor detection |
This system combines broad frequency coverage (1-128 Hz) with multi-station wireless capability and environmental control features. The automated data collection with species-specific enclosures supports standardized tremor assessment protocols.
Practical Tips
Perform baseline recordings with empty enclosures before each experimental series to establish current noise floor levels.
Why: Environmental vibrations and sensor drift can affect measurement sensitivity over time.
Allow the full 10-minute habituation period before data collection to minimize stress-related movement artifacts.
Why: Novel environment stress can produce movement patterns that confound tremor measurements.
Clean piezoelectric sensors with dry compressed air rather than solvents to avoid damage to sensor elements.
Why: Chemical exposure can degrade piezoelectric materials and alter sensitivity characteristics.
Monitor wireless signal strength indicators during multi-station recordings to identify potential communication issues.
Why: Signal dropouts can create data gaps that compromise tremor frequency analysis.
If tremor detection appears reduced, check that cage placement is centered on the sensor platform without mechanical dampening.
Why: Off-center positioning or contact with chamber walls can attenuate vibration transmission to sensors.
Record ambient vibration levels in your laboratory environment before installation to assess potential interference sources.
Why: HVAC systems, foot traffic, and equipment can introduce background vibrations that affect measurement precision.
Ensure adequate ventilation around chamber exteriors to prevent overheating from internal air circulation fans.
Why: Temperature elevation can stress subjects and potentially alter tremor characteristics.
Setup Guide
What’s in the Box
- Sound-attenuating chamber (55x42x55cm)
- Species-appropriate acrylic enclosure with lid
- Ultra-sensitive piezoelectric tremor sensor
- Chamber control box with wireless communication
- USB connectivity cable
- Conduct software license
- User manual and setup guide
- Calibration verification documentation (typical)
Warranty
ConductScience provides a standard 1-year manufacturer warranty covering defects in materials and workmanship. Technical support includes software updates, calibration guidance, and troubleshooting assistance for optimal system performance.
Compliance
What tremor frequencies can this system reliably detect?
The system operates from 1-128 Hz, covering pathological tremor ranges including parkinsonian tremor (4-6 Hz), essential tremor (8-12 Hz), and higher frequency motor oscillations up to 128 Hz.
How does the system distinguish tremor from normal locomotor activity?
Digital signal processing algorithms filter the frequency spectrum to isolate tremor-specific bands while rejecting voluntary movements that typically fall outside the 1-128 Hz tremor range.
Can multiple animals be monitored simultaneously?
Yes, the wireless system supports up to 8 monitoring stations controlled by up to 16 chamber control boxes, enabling simultaneous multi-subject recordings.
What is the maximum recording duration per session?
Recording sessions can extend up to 60 minutes following a standard 10-minute habituation period to minimize stress artifacts.
How sensitive are the piezoelectric sensors to environmental vibrations?
The ultra-sensitive sensors are designed with high signal-to-noise ratios and housed in sound-attenuating chambers to minimize interference from external vibrations.
What data output formats does the Conduct software provide?
Consult product datasheet for specific file formats and data export options supported by the Conduct software package.
How often does the system require calibration?
Baseline calibration should be performed with empty enclosures before each experimental series to establish current noise floor levels and verify sensor sensitivity.
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