Table A1.

Notation

Letter	Meaning
a	amplitude / strength parameter
x,y	dimension (x = color, y = shape)
li	looking nodes (i = index of the node)
u	activation variable for PF
v	activation variable for Inhib
w	activation variable for WM
m	activation variable for memory / Hebbian layer
g	stimulus input (Gaussian for fields)
c	connection weight function
S	gating function
t	time
τ	time scale parameter
h	resting level (static or dynamic)
n	number of nodes
r	random contribution
ξ	noise parameter
e	excitatory
i	inhibitory