Table 2.

Reversal learning: types of PERs of an individual bee during reversal learning at the end of each trial that consists of two odors in context 1 and two odors in context 2

	Context 1: A+ B−	Context 2: A− B+
Complete reversal	A1 B0	A0 B1
Partial reversal	A1 B0	A0 B0
	A1 B0	A1 B1
	A1 B1	A0 B0
Generalization	A1 B0	A1 B0
	A1 B1	A1 B1
No learning	A0 B0	A0 B0

A+ means that A odor was rewarded, and B− means that B odor was not rewarded. A1 means response toward odor A, and B0 means no response toward odor B. The expected response after context learning (Fig. 3A) toward A+ B− was A1 B0 in context 1 and toward A− B+ was A0 B1 in context 2. This is complete reversal. Apart from this, bees also showed partial reversal with correct responses only in one of two contexts. Bees also showed generalization with same responses in both contexts (A1 B0 or A1B1). Finally, bees that did not learn either context showed no response (A0 B0).