What are the septal nuclei?

In the brain, the limbic system consists of several structures that help regulate memory and emotions. One component of this system, known as septal nuclei or septal area, is involved in the inhibition of fear and expression of pleasant answers. This structure receives input and also sends output to many parts of the brain, including other limbic systems structures, and Thalamus, which directs incoming stimuli from most sensory systems. This is a bundle of nerves connecting the hemisphere of the brain. From an evolutionary point of view, this area seems to have been an offshoot of a hippocamp, a structure in a limbic system involved in memory. As a result, there are strong connections between the two regions.

nervous projections mediate hippocampal connections to the brain stem and hypothalamus, which are involved in automatic processes. The media and side parts of the septal area seem to regulate the interaction of these three areas. Functionally, it allows these cores to regulate the formation and search for hippocampal memory in response to the UPSee, which is mediated by a hypothalamus and brain.

The brain area involved in the expression of fear and other emotions called amygdala is also regulated through a septal nucleus. Like its connection with the hippocamp, these cores regulate the interaction with the hypothalamus. The excitement and activation of amygdala can lead to sexual behavior and physical contact. Inhibitory signals sent by the septa area modules this answer and support more distinguishing contact. Some scientists believe that this inhibition contributes to forming closer, longer -term emotional cases.

Part September The cores serve as a reward center, which means that it generates pleasant responses to certain stimuli. These reactions help create a sense of reward for some behavior. Animal studies have shown that when devices are implanted by devices that allow rats to directly stimulate this area, they will make it repeatedly to experiencePleasant feeling.

Some mental disorders may include changes in septal cores. It has been found that individuals with bipolar disorder and schizophrenia have lower cell density in this area compared to healthy entities. Correlation was also found in individuals with a large depressive disorder where the time they had their disorder was associated with lower cell density. This interaction is probably due to the importance of septum in emotional regulation.