Table 1.

Order of training for the seven discriminations sets used in the ID/ED set-shifting task. In the example illustrated here, texture (T) was the constant stimulus dimension across all discriminations and the stimulus depicted in bold was baited. For SD through IDR, odor (O) was the relevant dimension and digging medium (D) was irrelevant. For EDS and EDR, D was the relevant dimension and O was the irrelevant dimension. Numbers refer to specific stimuli (e.g., O1= Lavender).

Discrimination	Odor	Digging Medium	Texture
Simple Discrimination (SD)	O1, O2	None	None
Compound Discrimination (CD)	O1, O2	D1, D2	T1
Compound Discrimination Reversal (CDR)	O1, O2	D1, D2	T1
Intradimensional Shift (IDS)	O3, O4	D3, D4	T2
Intradimensional Reversal (IDR)	O3, O4	D3, D4	T2
Extradimensional Shift (EDS)	O5, O6	D5, D6	T3
Extradimensional Reversal (EDR)	O5, O6	D5, D6	T3