Actogram
Double-plotted actogram showing activity levels across 24h cycles — the standard circadian rhythm visualization.
PNGCSV
← Capabilities
Circadian Home Cage Monitoring
Continuous home cage behavioral monitoring with circadian analysis
24-hour-plus continuous recording with automatic segmentation into light and dark phases, activity profiles, and rest-state detection from standard video.
24+hr
Continuous recording duration
Auto
Light/dark phase detection
Yes
Rest-state detection from video
Actogram
Circadian visualization output
The problem
Acute behavioral tests miss circadian patterns and naturalistic behavior
Standard tests capture 5-30 minutes of behavior in a novel environment. Home cage behavior over 24+ hours reveals circadian activity rhythms, rest patterns, and naturalistic behavior that acute tests miss entirely.
- Acute tests sample behavior at a single time point — missing circadian variation
- Novel-environment testing confounds behavior with novelty-induced anxiety
- Rest/activity cycles, feeding patterns, and nest-building are invisible in acute tests
The solution
Continuous video tracking with circadian phase analysis
ConductVision supports continuous recording for 24+ hours with automatic detection of light/dark phase boundaries. Activity is binned into circadian phases and visualized as actograms.
- Continuous tracking through light/dark transitions using adaptive background subtraction
- Automatic light/dark phase detection from video brightness changes
- Activity profiles and rest-state detection binned into circadian phases
Endpoints
Circadian behavioral outputs
Phase-binned activity
Total distance, velocity, and activity counts binned into light and dark phases for each 24h cycle.
CSVJSON
Rest-state log
Periods of sustained inactivity (rest states) with onset, offset, duration, and circadian phase assignment.
CSV
Applications
Long-duration monitoring applications
Jet lag and shift-work models
Track re-entrainment of activity rhythms after light-cycle shifts — quantify circadian disruption and recovery.
Measures
- Re-entrainment rate
- Phase shift magnitude
- Rhythm stability
Pain-related activity changes
Chronic pain alters home cage activity patterns — reduced exploration, increased rest, altered circadian distribution.
Measures
- Activity level change
- Rest bout increase
- Circadian disruption index
Age-related circadian decline
Aging fragments circadian rhythms. Continuous monitoring detects rhythm amplitude reduction and phase shifts.
Measures
- Rhythm amplitude
- Phase consistency
- Fragmentation index
Chronic drug treatment monitoring
Monitor behavioral effects of chronic drug administration in the home cage — sedation, hyperactivity, tolerance development.
Measures
- Activity change over days
- Tolerance onset
- Circadian effect
Compared to typical systems
How ConductVision differs
| Feature | ConductVision | Typical systems |
|---|---|---|
| Recording duration | 24h+ continuous | 5-30 minute acute tests |
| Circadian analysis | Automatic phase binning + actogram | Not available |
| Rest-state detection | From video (no additional hardware) | Beam-break or piezo only |
| Light/dark transitions | Tracked through with adaptive background | Causes detection failure |
| Naturalistic behavior | Home cage, undisturbed | Novel-environment testing |
Related capabilities
Background Subtraction
Adaptive background subtraction with shadow rejection and automatic lighting adaptation.
Motion Energy Quantification
Frame-level motion energy index that detects in-place movement invisible to coordinate tracking.
Multi-Arena and Batch Processing
Parallel arena recording and automated batch processing for high-throughput behavioral studies.
See the full 24-hour behavioral picture
Set up continuous home cage monitoring and get circadian activity profiles automatically.
