Complementary neurophysiological recordings in macaques and functional neuroimaging in
humans show that the primary taste cortex in the rostral insula and adjoining frontal
operculum provides separate and combined representations of the taste, temperature, and
texture (including viscosity and fat texture) of food in the mouth independently of hunger and
thus of reward value and pleasantness. One synapse on, in the orbitofrontal cortex, these
sensory inputs are for some neurons combined by learning with olfactory and visual inputs …