Navigation Links
Limbic system


The limbic system is a group of brain structures that are involved in various emotions such as aggression, fear, pleasure and also in the formation of memory. The limbic system affects the endocrine system and the autonomic nervous system. It consists of several subcortical structures located around the thalamus:

The limbic system is among the oldest parts of the brain in evolutionary terms: it can be found in fish, amphibians, reptiles and mammals.

The pleasure center is located in the limbic system. It is involved in sexual arousal and in the "high" derived from certain recreational drugs. Dopamine acts here. Rats with electrodes implanted into their limbic system will self-stimulate in preference over food and will eventually die of exhaustion.

The limbic system is tightly connected to the prefrontal cortex . It has been conjectured that this connection is related to the pleasure obtained from solving problems. To cure severe emotional disorders, this connection was sometimes surgically severed, a procedure of psychosurgery. Patients who underwent this procedure often became passive and lacked all motivation.


'"/>


(Date:10/29/2014)... from household and industrial products are in the environment ... most of them, scientists have yet to determine whether ... step toward doing that by estimating which substances people ... published in the ACS journal Environmental Science & ... that the risks to human health of any given ...
(Date:10/29/2014)... kind of stem cell, those referred to as ,facultative, ... is apparently nothing that differentiates these cells from the ... they retain the capacity to become stem cells again. ... an organ that hosts cells that stimulate tissue growth, ... case of a transplant. Knowledge of the underlying ...
(Date:10/29/2014)... the international Cancer Genomics of the Kidney consortium ... kidney cancer and exposure to aristolochic acid, an ... in Nature Communications , have important implications ... than 140,000 people every year, and in Central ... part of the International Cancer Genome Consortium (ICGC), ...
Breaking Biology News(10 mins):A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2Kidney cancer in Central Europe 2
... that some type of protective system goes into action ... deficient. This discovery indicates a hidden safety net that ... immune system such as AIDS. The Mayo Clinic-led study ... is reported in the early online edition of the ...
... for the first time. An international team led by ... Science published an analysis of the marsupial genome in the ... of an important cluster of immune genes known as the ... (Monodelphis domestica), a marsupial found in South America. , ...
... antibacterial coatings on hip and knee implants and biomedical ... surgery and significantly reduce health care costs and improve ... of South Australia have found. , A significant number ... after surgery and in many cases are not amenable ...
Cached Biology News:Infant transplant patients resist infections that kill adult AIDS patients 2Infant transplant patients resist infections that kill adult AIDS patients 3Marsupial genome reveals insights into mammalian evolution 2Antibacterial coatings cut infection rates 2Antibacterial coatings cut infection rates 3
Other biology definitionOther Tags