Scratch Bout Count
Number of discrete scratching episodes
ConductVision · Behavioral Analysis
Scratching Detection
Automated hindlimb scratching bout detection for itch research, dermatitis models, and antihistamine screening.
TrainableRodentDermatologyAuto Export
ConductVision / Scratching Detection
Recording / Trial 3subject tracked
Scratch Bout Count14
Scratching Duration27%
Mean Bout Duration27%
Key Parameters
Metrics automatically extracted by ConductVision.
Total Scratching Duration
Cumulative time spent scratching
Mean Bout Duration
Average length per scratching episode
Scratch Rate
Scratching bouts per unit time
Body Region Targeted
Distribution of scratching by body area
Scratching Latency
Time to first scratch from stimulus or session start
What is Scratching Detection?
Hindlimb scratching is the primary behavioral readout for itch (pruritus) research. Scratching bout frequency and duration serve as dose-response endpoints for pruritogens, antihistamines, and anti-itch biologics. Manual scoring of scratching is extremely labor-intensive, often requiring frame-by-frame video analysis.
ConductVision's extensible behavior classifier uses pose estimation features fed into a Random Forest pipeline. The system identifies scratching through characteristic rapid hindlimb-to-body contact cycles, distinguishing scratching from grooming and other self-directed behaviors based on limb velocity, periodicity, and contact location.
Research Applications
Itch Research
- Pruritogen dose-response — histamine, chloroquine, SLIGRL
- Chronic itch models — dry skin, contact dermatitis, atopic dermatitis
- Antipruritic drug screening — antihistamines, NK1 antagonists, biologics
Dermatology
- Atopic dermatitis — spontaneous scratching in NC/Nga mice
- Contact hypersensitivity — oxazolone and DNFB models
- Psoriasis — imiquimod-induced scratching quantification
Neuroscience
- Itch circuit mapping — spinal and supraspinal pathway studies
- Neuropathic itch — nerve injury-induced alloknesis
- Cross-talk between itch and pain pathways
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