Abstract
Since the nose and mouth are situated near to each other on the face, olfaction and gustation are generally thought to have close positions in the nervous system to interact with each other. However, neural information about both sensations are not integrated until they reach association cortex. The present review first described the general nature of gustation in comparison with olfaction, and then stated how gustatory information is analyzed or integrated along the central pathway to the gustatory cortex. Further, it described the position of the primary gustatory cortex in humans recently revealed by non-invasive brain imaging and the function of gustation-related cortex, including the primary gustatory cortex.
