Emotional behavior center, more precisely called “emotional psychomotor center”: the limbic system of the brain. I. Cortical structure of the system 1. The orbital, ventral and medial parts of the prefrontal lobe form the frontal part. 2. Cortical part of cingulate gyrus. 3.The inferior temporal gyrus, the syrinx at the base of the temporal gyrus (temporo-occipital gyrus), and the hook gyrus cortical at the temporal pole. 4.Subcortical structures: the gray matter nuclei around the lateral ventricles or along the lateral ventricle wall, including: the nucleus ambiguus, caudate nucleus, amygdala, hippocampus. The functional areas and division of labor are similar to those covering the outer surface of the brain. 1. The prefrontal cortical areas, the nucleus ambiguus, and the anterior part of the caudate nucleus are power areas responsible for emotional expression (e.g., most facial muscles are responsible for emotional expression, called expression muscles, especially the periocular muscles, and the motoneurones are also involved). 2. The inferior temporo-occipital gyrus, the visual and auditory-related joint cortices of the medial temporal lobe in the lateral fissure (the anterior, posterior and inferior temporal joint cortices around the auxiliary auditory area in the lateral fissure auditory area), and the hook gyrus are responsible for emotional perceptual input, recognition and processing. The hippocampus is responsible for recognition and transport of information to the relevant brain areas for central synaesthesia storage at all levels. For humans, who have the most advanced neurological function, linguistic intelligence, the emotional center also basically assumes the role of “instinctive behavior center”. The emotional line is completed through the neural circuit associated with the amygdala-hippocampus-caudate gyrus-cingulate gyrus-marginal frontal lobe. Instinctive behaviors are more prominent in the prefrontal-ventral striatum-voxel nucleus and neuroendocrine-related circuits.