Review Article

Investigating the Underlying Intelligence Mechanisms of the Biological Olfactory System

Figure 2

A major dopamine system in the slug brain. (a) Schematic illustrations of the major dopamine system. These figures are made on the basis of brain sections treated using the histofluorescent method for staining catecholamine (dopamine). Top and bottom panels are based on sections from dorsal and ventral parts, respectively. Filled ovals indicate dopamine-containing cell bodies. Dotted area indicates the area that the dopamine-containing fibers are densely distributed. The estimated mMtC region that would be activated by the STN or ITN stimulation is indicated by red shade. A large open-oval in the bottom indicates the metacerebral giant cell. (b) Function of the major dopamine system (DA) suggested by its morphology. The major dopamine system might function as a bridge between the medial region of MtC (mMtC) and the procerebrum (PC). Figure 2(a) is adapted and modified, with permission, from [34] 2006 IEEE.
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