Table 2. Parameters in the detailed model.

Parameter	Description	Default value
N	Number of particles	34
R	Arena radius	25
	Grid spacing. Determines average velocity.	0.15
	Probability to turn at	0.062
	Slope of probability to turn with the direction of the crowd as a function of	−0.021
	Slope of probability to turn against the direction of the crowd as a function of	−0.055
	The probability (per time step) to stop spontaneously	0.0082
	The probability (per time step) to stop when in the same location as another particle.	0.51
	The probability (per time step) to start moving spontaneously	0.015
	The probability (per time step) to start moving when in the same location as another particle	0.36
	The probability (per time step) to start moving when the visual stimulus is on	0.04
	Threshold for the visual stimulus at the back of the animal	2
	Threshold for the visual stimulus at the front of the animal	2
r	Interaction distance	5