Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Explanation of the role of the amygdala
Effects of emotion on memory
Amygdala essays
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Explanation of the role of the amygdala
The amygdala is responsible for the perception of the emotions of fear, sadness, aggression, and anger. This brain structure stores memories of events and the emotions affiliated to them, so the person can recognize a similar event in the future. An example of this is, a person is burnt by a hot stove top, the next time around a hot stove they will be more fearful of the pain and be cautious next time. The amygdala can also process emotions of arousal and pleasure (The Amygdala, N.d).
There are many techniques used to view or measure the amygdala. One technique is through neuroimaging technology, where Psychologists can see different regions of the brain connect and communicate. One study was done where Psychologists used this technology to demonstrate white Americans who say there are free of prejudice, show differences in brain activity in the amygdala. They showed these white Americans pictures representing people of different racial groups and saw how the amygdala reacted. (Scanning the Brain, 2014). To measure the amygdala and its responses to pleasure, when the brain is being scanned, activity in the amygdala increases when they are sexually aroused (Grison & Gazzaniga, 2017, p. 56). Also, males who have low testosterone, tend to have smaller amygdalae which shows they will usually have a lower sex drive.
…show more content…
People with damaged amygdalae are more likely to take bigger risks even if there is only a small potential gain (Moisse, 2010). If an amygdala is hyperactive or one is smaller than the other, a person may fear and anxiety disorders. Anxiety can lead to panic attacks that happen when the amygdala sends signals that the person is in danger even when there is no actual threat. Also, people with isolated lesions of the amygdala can have Urbach-Wiethe disease (a rare genetic disease) (Bailey,
Kiehl’s (2006) literature review continues with this idea of amygdala implication in psychopathic traits by saying that the amygdala, in particular o...
Organized in the class Actinopterygii, seahorses, Hippocampus spp., are marine dwelling organisms found in bodies of water which span from tropical to temperate zones around the Earth. As cited by Foster in Life History and Ecology of Seahorses, research by R. A. Fritschze suggests that the genus Hippocampus diverged at least 20 million years ago from its ancestral origins. Research pertaining to organisms organized under the genus Hippocampus are conflicting in regards to the number species contained within it, although a general figure places the number at around fifty discovered species(website source). These odd-looking organisms reside at shallow depths of less than 30 meters and can be found in habitats containing seagrass beds and coral reefs(Foster 10). Hippocampus spp. are all predatory organisms, their main sources of food consist of small crustaceans and fish, as well as other organisms which are small enough to be consumed(lourie 10). Although Hippocampus spp. are predatory, their size and restricted mobility capabilities place them at risk of being prey for other carnivorous organisms.
Anger is a basic human emotion that transcends cultural boundaries. However, despite its universality, an exact definition agreed upon by all people is lacking (Norcross & Kobayashi, 1999). Physiologically, brain centers in the amygdala are connected to anger processing. Because the information processing that takes place in this brain structure is primitive, anger can be triggered inappropriately and without the individual's knowledge of the cause. In psychodynamic terms, past events and experiences suppressed in the unconscious can be the source of generated anger. In cognitive-behavioral terms, anger is described as an interaction of behavior, cognition, and physiological arousal (Ambrose & Mayne, 1999). According to Deffenbacher (1999), anger may be aroused by specific external events, a mix of these external events with the anger-related memories they elicit, and internal stimuli such as emotions or thoughts. It results when "events are judged to involve a trespass upon the personal domain, an insult to or an assault upon ego identity, a violation of values and expectations, and/or unwarranted interference with goal-directed behavior" (p.297).
The middle of the brain is called the limbic system which is responsible for our emotions, memories, and etc. We mammals have the only developed limbic system, and so we don 't have to rely on instincts to help us survive in life. The hippocampus which is located on each side of the brain helps us with our long term memory, and also to help us remember where things are. For example it 's help us remember where we put our keys. The amygdala is the part of our limbic system that helps us with our emotions. It also has one on each side, and paticulary is involved with our the emotions fear and aggression. For example if a women went through physical abuse she might be scared to be in a relationship again due to the fact she thinks it might easily happen again. Even if the new guy she is talking to has never hurt a fly. The hippocampus and amygdala work hand and hand when it comes to the pleasure center of the brain. The arousal by an over ride of electrical stimulation is caused by when a person uses an addictive drug like heroin. Really you don 't have to take drugs to stimulate the limbic system sex will also do the same. There are also reward circuits in our brain like when we get a good grade on our test or hear something really funny these circuits can be
The Journal of Cognitive Neuroscience examines an article on the amygdala response to fear faces and the way it is different between one’s own culture and other cultures. The amygdala is specialized in detecting threat and includes fearful facial expressions. The researchers of this study hypothesized that amygdala response is greater in individuals of their own culture. This study was conducted on both native Japanese participants and Caucasians in the United States. Functional brain imaging was acquired at two neuro-imaging facilities. Japanese participants were scanned at the National Institute for Physiological Sciences in Okazaki, Japan. Caucasian participants were scanned at the Athinoula A. Martinos Center for Biomedical Imaging in Charlestown, MA.
Through studies performed on sleep-deprived rats, experimental results have shown a decrease in cellular activity in the hippocampus. The hippocampus is responsible for most of the brain’s memory processing. When entering into sleep deprivation, the brain will experience consequences such as a failure for the hippocampus to encode, consolidate, or retrieve signals powering memory processing. As a result, researchers are looking for cellular characteristics that could lead to further details into the relationship between sleep deprivation and memory impairment. There are several different ways memory can be disrupted, one suggested in being an imbalance of neurotransmitters in the hippocampal region of the brain. Both hormonal and oxidative stress are also factors that are observed to play major roles of memory impairment in the hippocampus. These
[11] Blair, R. J. R. (2007). The amygdala and ventromedial prefrontal cortex in morality and psychopathy. Trends in cognitive sciences, 11(9), 387-392.
Lischke, A., Gamer, M., Berger, C., Grossmann, A., Hauenstein, K., Heinrichs, M., . . . Domes, G. (2012). Oxytocin increases amygdala reactivity to threatening scenes in females. Psychoneuroendocrinology, 37(9), 1431-1438. http://dx.doi.org/10.1016/j.psyneuen.2012.01.011
In Daniel Goleman’s “Emotional Intelligence,” he dives into the science behind the brain and how emotions can affect a person’s decision making process. The human brain consists of two main parts: the neocortex, or the thinking brain, and the amygdala, the emotional brain. The neocortex is the part of the brain that is responsible for rational thoughts. “It contains the centers that put together and comprehend what the senses perceive” (Goleman 11). Contrasting the neocortex is the amygdala, which “acts as a storehouse of emotional memory; life without the amygdala is a life stripped of personal meanings” (Goleman 15). According to Goleman, one man, whose amygdala was surgically removed, became completely uninterested in people, preferring to sit in isolation with no human contact. “Without an amygdala he seemed to have lost all recognition of feeling, as well as any feeling about feelings” (Goleman 15). The amygdala has its own circuitry attaching it to the pre-frontal cortex, which is the center for the brain for working memory. If this circuitry was cut, a person’s decision making process would be greatly affected. However, if this connection was broken, a person’s score on an IQ test would not be affected at all. This is true because the emotional aspect of the brain, which is used in making decisions, would be affected but the rational thinking portion would not be affected. The amygdala
For example, a study was done by, Cunningham, (2007), he believed that brain implicit attitudes operates through our unconscious emotion and that because the presentation of subliminal black faces activated our amygdala rather than white faces. The amygdala is known for its negative, and fearful sensitive, now it is also known for positive information after suffering from brain injury. Cunningham, (2007), have demonstrated that the amygdala depending on the perceiver might respond differently with processing affective intensity as opposed to various valence which cause the brain injury person to respond differently. Brain lesions have been linked by researchers and also brain lesions are related to cognitive deficits. The imagery of brain lesions were study in patients. The patient underwent surgery that served their right hemisphere from their left hemisphere. According to, (Sternberg, 2009), the right hemisphere appeared to represent visuospatial knowledge, whereas, the left hemisphere geared move toward symbol based knowledge. Moreover, the right hemisphere also represent being connected to the analogous to our physical environment as well. Nonetheless, the left hemisphere associates imaginal components along with symbols and to collect entirely new information entirely after undergoing brain
Finger, Marsh, K. Blair, Reid, Sims, Ng, Pine, and R. Blair wanted to know if youths who have conduct disorder or oppositional defiance disorder have abnormalities in their amygydala and orbitalfrontal cortex. The experimenters used an fMRI to check for abnormalities. Youths who have conduct disorder or oppositional defiance disorder tend to show more aggression and antisocial behavior. These youths also have a higher risk of being antisocial or even criminals in the future. Although psychopathic traits can be caught early, psychologists do not fully understand pathophysiology. In previous studies experimenters have found that subjects who have psychopathic traits also have issues with emotional learning. They found that the traits showed damage in the stimulus-reinforcement learning and in decision making using the passive avoidance task. According to previous studies the amygdala is where the stimulus-associations take place, which then the information is thought to be sent to the orbitalfrontal cortex through the ventral striatum. Then in the orbitalfrontal cortex processes the information and helps in the decision making.
...ome home from the war who suffer from PTSD. Schacter (1999) states, “Recent PET studies of patients with PTSD have revealed activation in a variety of brain regions previously implicated in fear and anxiety, including the amygdala…” (p. 18).This shows that persistence is largely influenced by emotions.
As the human body goes through different experiences, the brain grows, develops, and changes according to the environmental situations it has been exposed to. Some of these factors include drugs, stress, hormones, diets, and sensory stimuli. [1] Neuroplasticity can be defined as the ability of the nervous system to respond to natural and abnormal stimuli experienced by the human body. The nervous system then reorganizes the brain’s structure and changes some of its function to theoretically repair itself by forming new neurons. [2] Neuroplasticity can occur during and in response to many different situations that occur throughout life. Some examples of these situations are learning, diseases, and going through therapy after an injury.
Emotion is the “feeling” aspect of consciousness that includes physical, behavioral, and subjective (cognitive) elements. Emotion also contains three elements which are physical arousal, a certain behavior that can reveal outer feelings and inner feelings. One key part in the brain, the amygdala which is located within the limbic system on each side of the brain, plays a key role in emotional processing which causes emotions such as fear and pleasure to be involved with the human facial expressions.The common-sense theory of emotion states that an emotion is experienced first, leading to a physical reaction and then to a behavioral reaction.The James-Lange theory states that a stimulus creates a physiological response that then leads to the labeling of the emotion. The Cannon-Bard theory states that the physiological reaction and the emotion both use the thalamus to send sensory information to both the cortex of the brain and the organs of the sympathetic nervous system. The facial feedback hypothesis states that facial expressions provide feedback to the brain about the emotion being expressed on the face, increasing all the emotions. In Schachter and Singer’s cognitive arousal theory, also known as the two-factor theory, states both the physiological arousal and the actual arousal must occur before the emotion itself is experienced, based on cues from the environment. Lastly, in the cognitive-mediational theory
It is a subset of social intelligence, so there are few common between both of the intelligence. Its term refers to the ability to control and understand self-emotions and sense and respond to others emotions (Wolfe & Kim,2016). Amygdala equally means old brain, is a temporal lobe of the brain function where regulating one’s own emotions and is a very significant part to feel emotional. Gouveia (2013) mentions that a study case of a patient who has experienced a damaged amygdala was unable to feel the emotions and make decisions regularly. Nevertheless, making a decision is not only by emotion but also logic which refers to rational. If neither one of them has lost the balance, it would influence to make a bad decision. Understanding and facilitating emotional into rational is a process of emotional intelligence. According to Kosslyn, Rosenberg, & Lambert (2014) and mentions that the three psychologist professors John Mayer, David Caruso and Peter Salovey who have firstly broken down the emotional intelligence into 4 aspects of skills. The first is perceiving emotion which is an ability to recognize other emotions by facial expressions, such as joyful. Secondly, understanding emotions means that the ability to understand each message conveyed by emotions. The third is facilitating thought by emotions, which means to think of how to respond. Lastly but not least, managing emotion means own emotion to promote other people’s emotion (Kilduff, Chiaburu, & Menges, 2010). Utilizing these four dimensions in developing emotional intelligence with help to inform decisions, predict life outcome and help to understand more about others thus to build up satisfying relationships (Gouveia,