Receptive Fields for the Gustatory and Olfactory Sensory Systems
G1 (gustatory - taste) Gustatory Area 1, or G1, is used for taste.
Olfactory Area 1, or O1 (olfactory - smell), is used for smell.
The olfactory bulbs are the most highly developed part of this Tyrannosaurus rex brain. In contrast to vision and hearing, the olfactory bulbs are not cross-hemispheric. The right bulb connects to the right hemisphere and the left bulb connects to the left hemisphere.