VCR

Avian Head Stabilization Simulator

Multi-link Vertebra Kinematics & Reflex Loop Physiology
Directly drag body torso or adjust perturbation shake
Head Spatial Jitter
2.3 px RMS
Body Displacement
42.1 px RMS
Retinal Slip Rate
0.80 ยฐ/sec
Stabilization Efficiency
94.5 %
VCR Peak Torque
0.42 Nยทm
Real-Time Trajectory Scope 60 FPS
Body Y
Head Y
Retinal Slip
Reflex Loop Control Tuning
Vestibulocollic Reflex (VCR)
Vestibulo-Ocular Reflex (VOR)

Perturbation Oscillation 2.5 Hz
Disturbance Amplitude 35 px
VCR Feedback Gain 1.85
Sensor Latency (Semicircular Fluid) 12 ms
Vertebra Neck Links 14 (Avian)
Biological Mechanism
Birds possess up to 14 flexible cervical vertebrae (versus 7 in mammals). Semicircular canal fluid detects body rotational acceleration and fires motor units via low-latency (10โ€“15ms) VCR loops to apply exact counter-torque along the neck chain, holding retinal images stationary.