Amygdala is an almond-shaped region in the temporal lobe of the brain. This shape is called amygdala because its shape looks like almond.
Although he has a very small volume, he undertakes very important tasks in our survival. Memory plays a crucial role in the control of emotional processes such as decision-making and fear, and aggression.
amygdala damage It is one of the main elements of amygdala limbic system found in both hemispheres of the brain.
When we look at the structure of the amygdala we see that it consists of clusters of neurons. These clusters perform very important tasks. Some of them are basolateral complex, cortical core, medial core, central core. Bazolateral complex is divided into three as basal, basal and basal nuclei.
Differences Between Right and Left Amygdala
An amygdala is found in both halves of the brain. These are the symmetry of each other in structure. However, there are some differences between them. It was observed that the right and left amygdala were doing different jobs in the studies which gave electric current to the brain.
The right amygdala is responsible for treating negative emotions. Especially feelings of fear and unhappiness are the emotions triggered by this place. In contrast, the left amygdala triggers negative emotions such as positive emotions or fear. Some studies show that the left amygdala is also involved in the reward mechanism of the brain.
Two amygdala also have a special function in our way of detecting and processing emotions. These are independent memory systems. But he acts together to interpret and store emotions.
Amygdala in the right hemisphere is associated with negative emotions. Fear related conditioning takes place exactly in this region. For example, at the age of 8 when you were cycling, a dog behind you started chasing you and you started to run away. Right amygdalanuz immediately bred on dogs to be frightened against you. Trauma like misplaced.
The right amygdala is also associated with manifest memory. Declarative memory is the type of memory that you consciously call information about your past experiences. For example, your first meeting with your lover was at a restaurant with a view of the Bosphorus.
You can remember the name of the restaurant or not by means of the notification memory. It falls within the task field of the eventual memory in a subset of the declarative memory. The emotional components of all the memories you experience in that restaurant pass through the filter of the right amygdala.
Development Process of Amygdala
The brain of all people follows a very effective development process in infancy. Most of the synapses present at birth are lost when you are 3 years old.
In the first years of life, women’s limbic structures develop faster than men. In females, the amygdala develops fully in 1.5 years, whereas in males this period is longer. Men’s amygdala development process is slower than women.
Differences between males and females are not limited to time. Gender-related differences include hormonal and neurological changes. Amygdala is very rich in androgen receptors. These receptors bind effectively to testosterone.
DNA activation begins when testosterone receptor binding occurs. The intracellular signaling mechanisms to activate DNA are activated. We know that women have lower levels of testosterone than men.
This causes the amygdala to be different in size between different genders. Testosterone plays an important role in determining the amount of gray matter in the amygdala.