Table 1. Theoretical predictions of cortico-striatal synaptic plasticity dynamics as functions of pre-synaptic activity, post-synaptic activity, and dopamine concentration in comparison with the average experimental findings across studies on long-term effects in synaptic plasticity.

pre	post	dopa	theoretical predictions	theoretical prediction	experimental results
0	0	0	-	-	-
1	0	0	-	-	-
0	1	0	-	-	-
0	0	1	-	-	-
1	1	0	-	LTD	LTD (LTP)
1	0	1	LTDLTP	LTDLTP	-
0	1	1	-	-	-
1	1	1	LTDLTP	LTDLTP	LTDLTP

The predictions are based on eq:value function weight update for and , corresponding to discount factors and , respectively; the experimental findings on [9]. A 1 in the first three columns denotes an active influence, whereas a 0 indicates that the corresponding activity is not involved in the synaptic changes. The symbol indicates that either LTD or LTP occurs depending on the concentration of dopamine; the symbol - denotes an absence of long-term changes in the synaptic weights.