Table 2.

Description of attentional set-shift task (ASST) phases

First test day
SD	Discrimination on digging media only; 1 medium is correct, e.g. sand
CD	Correct digging medium is the same as SD, e.g. sand; additional dimension is introduced but irrelevant (e.g. lemon and garlic)
CDR	Correct digging medium is the other medium, e.g. Saw dust; odor is irrelevant
IDS	Relevant dimension is still the digging medium and odor is irrelevant; the correct medium in the next set (2) of digging medium, e.g. plastic balls
IDSR	Correct digging medium is the other medium of the same pair of medium, e.g. cubes and odor is irrelevant
Second test day
IDS2	Relevant dimension is still the digging medium and odor is irrelevant; the correct medium in the next set (3) of digging medium, e.g. cardboard
IDS2R	Correct digging medium is the other medium of the same pair of medium, e.g. beads and odor is irrelevant
EDS	Relevant dimension is odor and digging medium is irrelevant; the correct scent is from set (4) of e.g. cocoa
EDSR	Correct scent is the other odor of the same pair of odors, e.g. coriander and digging medium is irrelevant

Direction of shift from medium to odor. SD: simple discrimination, CD: compound discrimination, CDR: compound discrimination reversal, IDS: intra dimensional shift, IDSR: intra dimensional shift reversal, IDS2: intra dimensional shift day 2, IDS2R: intra dimensional shift day 2 reversal, EDS: extra-dimensional shift, EDR: extra-dimensional shift reversal.