Might the olfactory bulb be an origin of olfactory auras in focal
... occasionally co-exist with other sensory auras; mainly
gustatory but also occasionally auditory, visual, and
abdominal visceral (Penﬁeld and Jasper, 1954; Palmini
and Gloor, 1992; Fried et al., 1995; West and Doty, 1995;
Acharya et al., 1998).
It is suggested that the olfactory system may modulate,