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#Which part of the brain controls emotion series

In 1954, Olds and Milner found that rats with metal electrodes implanted into their nucleus accumbens, as well as their septal nuclei, repeatedly pressed a lever activating this region. These responses are heavily modulated by dopaminergic projections from the limbic system. It is highly interconnected with the nucleus accumbens, which plays a role in sexual arousal and the "high" derived from certain recreational drugs. The limbic system operates by influencing the endocrine system and the autonomic nervous system. The limbic system is where the subcortical structures meet the cerebral cortex. The structures and interacting areas of the limbic system are involved in motivation, emotion, learning, and memory.

Anterior nuclei of thalamus: receive input from the mammillary bodies and involved in memory processing.

Mammillary bodies: part of the hypothalamus that receives signals from the hippocampus via the fornix and projects them to the thalamus.

Hypothalamus: a center for the limbic system, connected with the frontal lobes, septal nuclei, and the brain stem reticular formation via the medial forebrain bundle, with the hippocampus via the fornix, and with the thalamus via the mammillothalamic fasciculus regulates many autonomic processes.

Nucleus accumbens: involved in reward, pleasure, and addiction.

Amygdala: located deep within the temporal lobes and related with a number of emotional processes.

Hippocampus and associated structures: play a central role in the consolidation of new memories.

Septal nuclei: a set of structures that lie in front of the lamina terminalis, considered a pleasure zone.

Fornix: a white matter structure connecting the hippocampus with other brain structures, particularly the mammillary bodies and septal nuclei.

Entorhinal cortex: related to memory and associative components.

Piriform cortex: part of the olfactory system.

Orbitofrontal cortex: a region in the frontal lobe involved in the process of decision-making.

The following structures are, or have been considered, part of the limbic system: Therefore, the set of anatomical structures considered part of the limbic system is controversial. Ĭurrently, it is not considered an isolated entity responsible for the neurological regulation of emotion, but rather one of the many parts of the brain that regulate visceral autonomic processes. Further studies began to associate these areas with emotional and motivational processes and linked them to subcortical components that were then grouped into the limbic system. The name "limbic" comes from the Latin word for the border, limbus, and these structures were known together as the limbic lobe.

#Which part of the brain controls emotion series

MacLean as a series of cortical structures surrounding the boundary between the cerebral hemispheres and the brainstem. The limbic system was originally defined by Paul D. Īnatomical components of the limbic system This processed information is often relayed to a collection of structures from the telencephalon, diencephalon, and mesencephalon, including the prefrontal cortex, cingulate gyrus, limbic thalamus, hippocampus including the parahippocampal gyrus and subiculum, nucleus accumbens (limbic striatum), anterior hypothalamus, ventral tegmental area, midbrain raphe nuclei, habenular commissure, entorhinal cortex, and olfactory bulbs.

With a primordial structure, the limbic system is involved in lower order emotional processing of input from sensory systems and consists of the amygdaloid nuclear complex ( amygdala), mammillary bodies, stria medullaris, central gray and dorsal and ventral nuclei of Gudden. Emotional life is largely housed in the limbic system, and it critically aids the formation of memories. It supports a variety of functions including emotion, behavior, long-term memory, and olfaction. The limbic system, also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain.