Ventromedial Prefrontal Cortex

67) The frontal lobes are described as the brain’s “orchestra leader” (Martin, 1998, p. 190), which would place them at the reins of controlling effective behaviour. Damage to the frontal lobes encompasses a wide range of symptoms including deficits in executive functioning, changes in personality, emotional expression and social interaction. This includes apathy and lack of spontaneity, inability to plan and modify the sequencing of behaviour and inappropriate behaviour. 2

From neurobiological point of view, Impulsive aggression is seen as a consequence of a failure in the regulation of negative emotions, such as anger, for example. This thinking of Disinhibition and hostility was found and documented by Grafman et al. (1996) in TBI patients with frontal lobe damage involving subcortical limbic structures. According to Davidson et al (2000), threatening environmental stimuli are transmitted to the amygdala, which makes projections to the basal ganglia, where they are integrated with information of the social context that comes from the orbitofrontal cortex. Appropriate behavioral responses can, therefore, be initiated through projections toward other cortical regions, hypothalamus or brain stem. Consequently, the orbitofrontal cortex and adjacent areas such as the dorsolateral prefrontal

Two brain structures that could likely be affected by this damage are the frontal lobes and the temporal lobes. The frontal lobe produces speech, controls motor skills, and initiates leading functions such as thinking, personality, emotion and memory. (Huffman, K., Dowdell, K. 2015. Pg. 71). The temporal makes it possible for an individual to hear properly, comprehend language, recollect thoughts, and maintain emotional stability; this lobe also contains the auditory complex, which is responsible for the interpretation

These psychological disorders originate from different area of the brain. The brain consists of three main parts: the forebrain, midbrain, and hindbrain. The forebrain is made up of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain comprises the tectum and tegmentum. The hindbrain consists of the cerebellum, pons and medulla. The midbrain, pons, and medulla in conjunction are typically called the brainstem.

The PFC is not fully developed until the mid-twenties of a person’s life. “It is considered the seat of the ‘rational’ brain, since its functions include high level reasoning, decision making, impulse control, assessment of consequences, forward planning behavior modification and priority setting.” Behaviors such as impulsivity, inflexibility, emotional volatility and risk taking by adolescents can be explained by the lack of development in the PFC. Adolescents are more likely to not make rational choices under the conditions of high emotions and intense pressure; “they are more likely to act impulsively or without full consideration of the consequences”

20. An impairment of eating, drinking, temperature regulation, or sexual behavior suggests possible damage to which brain structure?

The amygdala specializes in threat detection, fear, excitement, and arousal, hippocampus helps format long-term declarative memories and spatial reasoning. The anterior cingulate cortex influences autonomic function, decision making, error detection and emotion while the posterior has a role in spatial annotations memory. The septal area produces pleasurable feeling,

Creating the world's first Z-Bomb, would have to be the most dangerous thing that could happen to humans. Turning them into Zombies, it would entirely change the characteristics of a human being and its brain. Although both living, Zombies have drastic defects towards certain aspects of the body. This Z-bomb won’t necessarily turn humans into zombies, but rather give humans zombie-ish characteristics.

Gamma-Aminobutyric acid commonly referred to as GABA, and glutamate make up around 80 percent of the neurotransmitters found in brain. GABA dampens the activity in the brain while

In addition, the limbic system is responsible for our perception of other emotions, both positive and negative, which explains the mood altering properties of many drugs. The cerebral cortex is divided into areas that control specific functions. Different areas process information from our senses, enabling us to see, feel, hear, and taste. The front part of the cortex, the frontal cortex or forebrain, is the thinking center of the brain, it powers our ability to think, plan, solve problems, and make decisions.

Looking at people brains that are at a higher risk can be beneficial to understanding changes before and after episodes. Scientist look at these people brains specifically at the frontal cortex, limbic system, and the amygdala for changes. The frontal cortex is the front part of a person brain used for decision making. Transmissions from the frontal cortex is sent to limbic system which is the site for processing emotions. Signals from the limbic system is sent to the amygdala where the brain experiences emotions. (Schneider)

It is believed that a mutation in the prefrontal cortex predisposes some people to violence. The frontal lobe is what we use to make decisions and, when fully developed, allows us to think carefully about our actions before we take them. An alteration in the prefrontal cortex may make us susceptible to impulsive and rash behaviors. For example, teens tend to be more reckless than adults. The teen frontal lobe is not fully formed, which is the reason for this outcome. Teens also tend to rely on their amygdalas to make decision. The amygdala is the center for powerful emotions, such as anger, jealousy, and guilt. For example, psychopaths have been found to be void of guilt and regret as a result of “the amygdala [being] less activated when they

The limbic system was first recognized due to Franz Josef Gall (LeDoux, J., 1996). Franz Joseph Gall developed the idea of “phrenology” that focused on the study of the different variations of bumps on the human skull to be related to differences in behavioral and emotional functioning. The limbic system’s main function in the brain is to control emotional behaviors and certain forms of memories that are infused with emotion (amygdala). The amygdala is a part of the brain that forms the tail end of the basal ganglia within the rostral temporal lobe and is located near the hippocampus (Lambert, K.G. & Kinsley, C .H., 2005). The amygdala, as defined by the text, is an almond-shaped structure that functions as a part of the limbic system involved in regulation of emotion and sexual urges (Lambert, K.G. & Kinsley, C .H., 2005). In addition, the amygdala is comprised of a dozen or more sub regions that are not all involved in fear conditioning (LeDoux, J., 1996).

location of the frontal lobe in the brain, it is at high risk of damage, in head trauma case to the

In the next paragraphs I will consider some theories, factors and evidence on cognitive controlling of emotion in terms of