The Amygdala Is NOT the Brain’s Fear Center I actually found all 3 parts of the brain were very interesting, especially the Limbic system. It’s hard to believe but this system is so in control of the majority of how we function from sex, sexuality, learning, memory and even the way we associate sounds and smells. On top of all that it also controls and regulates how our body functions and runs. The Limbic system itself has three parts, the Amygdala, the Hypothalamus and the Hippocampus. Although I find all three of these parts interesting, especially the Amygdala and the Hippocampus, it’s the raw basic core of how we behave that is affected by the Amygdala. It affects what we eat, drink, sex and aggression our basic needs in life.
Honestly, before I started learning about the three parts all I knew of the amygdala was it was in the brain. A small almond-shaped part of our brain that I didn’t hear much about as often people just talk about the Limbic system in general or tend to focus on the Hippocampus or Hypothalamus. Although I read quite a few articles, I learned a lot from, Joseph E LeDoux Ph.D.’s article “The Amygdala Is NOT the Brain’s Fear Center”. Apparently, people often think that this part of the brain is the fear center but it’s more like the danger detector center. They had found that when this area is damaged in animals they become very docile. He also mentions that this area is also a component of systems that affects stimuli for eating, drinking, sex and addictive drugs. I also learned that there is a right & left amygdala, just like our right and left hemispheres of our brain. One side can cause fear & aggression while the other controls “love”, sex & attraction. I also learned that the stimulating of the Amygdala is not the same in humans as it is in other mammals. In animals, if you stimulates one side of the fear & aggression. Also, it’s not just fear but, the learned to fear aspect. Like Pavlov’s experiment, every time my cats hear a can pop open they know that sound means food. Granted, I’m not referring to fear but, this reaction is also part of the Amygdala. They learned that sound means food and they will be under my feet in 3 seconds crying for it even though it’s a can of green beans. Every article I read Mammals are specifically mentioned leaving me to believe, fish, birds, insects & reptiles either don’t have an Amygdala or it is very different. Although studies in animals have taught us a lot, the human brain is a bit more complicated but, the studies in animals have helped us understand that lesions on the brain in the Amygdala are related to but not always the sole cause of Sexual Dysfunction, Anxiety disorders, and Autism.
According to, Parts of the Brain Affected by Alzheimer’s, Affects the brain in different areas at different times. It is the plaque that builds up in the brain in changing everything you know about that person. It causes damage to the amygdala which allows the patient to become aggressive fearful and agitated. The damage also creates the person to have anxiety outburst. What I found interesting, the most about this article was how much it related to both my parents at the end of their lives. My dad had become addicted to his Fentanyl and a lot of the behavior issues listed in this article I saw in him. Knowing that the Amygdala is involved in drug addiction, I’m wondering how different the 2 are. In my mother, her memory was not as dependable. As an individual with no medical knowledge at the time, we wouldn’t have realized there was an issue till my sisters and I were talking and found out we were each told very different stories about the same situation. She had become cold and distant and sad. It was not all that long after finishing Chemo so I wonder if Chemo Fog, which is known to affect memory if it could also aid in the progression of Alzheimer’s. I did find it interesting and would not mind doing more research on this.
LeDoux Ph.D., Joseph E. “The Amygdala Is NOT The Brain’s Fear Center”. Psychology Today. N.p., 2015. Web. 10 Aug. 2015.
Pritchard, J. (2011). Parts of the Brain Affected by Alzheimer’s. LIVESTRONG.COM. Retrieved 6 June 2017, from http://www.livestrong.com/article/122035-parts-brain-affected-alzheimers/
Causes of Sexual Dysfunctions | Serendip Studio. (2017). Serendip.brynmawr.edu. Retrieved 6 June 2017, from http://serendip.brynmawr.edu/exchange/serendipupdate/causes-sexual-dysfunctions
Poh, T. (2013). What happens if the amygdala is damaged? and it’s linked with Klüver-Bucy syndrome. Brain Stories. Retrieved 6 June 2017, from https://teddybrain.wordpress.com/2013/01/09/what-happen-if-amygdala-is-damaged/