N2 strain worm tracks under 23 Hz treatment. Movie shows tracks of four of the 74 worms tracked under the 23 Hz vibration treatment. First 30 seconds is control period 1 (no vibration, green), middle 30 seconds is the vibration treatment at 23 Hz (orange) and last 30 seconds is control period 2 (no vibration, purple). Only worms that moved within the area of interest for the full 90 seconds were tracked. White circle in middle has 2 mm diameter.