Table 2.

Physiology and morphology of 15 alarm pheromone-sensitive multiglomerular projection neurons of the ant. (In the physiology column, + and − indicate that the neuron responded to that odour and did not respond, respectively. The ratio for the non-pheromonal odour indicates the number of odours to which the neuron responded per number of different kinds of odours tested. Neurons that exhibited only inhibitory responses to components of alarm pheromone were excluded. AS: the neuron had dendrites in AS glomeruli; medial, lateral and dorsal indicate that the soma belongs to medial, lateral and dorsal soma cluster, respectively. ? indicates that the soma location was not specified; m-ACT, l-ACT, ml-ACT and d-ACT indicate that the axon of the neuron ascends through the medial, lateral, medio-lateral and dorsal anteno-cerebral tract, respectively. In the morphology column, + and − indicate that the axon of the neuron terminates in that area and does not terminate in that area, respectively. a lob, antennal lobe; ca, calyces of the mushroom body; l ho, lateral horn; v lob sat, satellite neuropil surrounding vertical lobe (or α lobe); d pr, dorsal protocerebrum; d lob, dorsal lobe.)

neuron no.		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
physiology	formic acid	+	−	+	+	−	+	+	+	+	+	+	+	+	+	+
n-undecane	+	+	+	+	+	+	+	+	+	−	+	−	+	−	+
non-pheromone	0/7	1/7	1/7	5/7	0/7	1/5	1/7	3/7	1/7	2/7	0/7	0/5	1/7	0/5	0/7
morphology	a lob	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS	AS
soma location	medial	medial	medial	medial	lateral	lateral	dorsal	dorsal	dorsal	dorsal	?	dorsal	dorsal	medial	medial
ascending tract	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	ml-ACT	d-ACT	m-ACT	m-/ml-ACT	m-/ml-ACT
ca	−	−	−	−	+	−	−	−	−	−	−	−	+	−	−
l ho	+	+	+	+	+	+	+	+	+	+	−	−	+	+	+
v lob sat	−	−	+	−	−	+	+	+	+	−	−	−	−	+	+
d pr	+	+	+	+	−	+	+	+	+	−	+	+	−	+	+
d lob	−	−	−	−	−	+	−	+	−	−	−	+	−	+	+