FAM &CS 21 Lecture Notes - Lecture 3: Sympathetic Nervous System, Diencephalon, Reinforcement
13 Nov 2020
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Historical introduction: from limbic lobe to limbic system. In 1878, broca designated the cingulate and parahippocampal gyri together as the great limbic lobe" . Suggested that the cortical limbic ring is rostrally closed by two subcortical nodal points (dt. Netzknoten), i. e. the more dorsally situated septum and the more ventrolaterally located amygdaloid complex. Structures associated with the septum in the upper part of the ring, are involved with expressing and feeling states that are conductive with sociability and procreation. Broca"s great limbic lobe) a neural continuum that may be designated as the limbic axis". Schneider, brain structures and its origins (chapter 25: regulating the internal milieu and the basic instincts: the olfactory inputs strongly influenced the early hypothalamus. Limbic-system arousal in state: a pervasive arousal response . It was discovered that electrical stimulation of the reticular formation of relaxed or drowsy cats caused a remarkable change.
