Behavioral Aspects: Final Project Part 2

5

Neural Structures Involved in Schizophrenia Disorder

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Neural Structures Involved in Schizophrenia Disorder

Schizophrenia is a mental illness that impairs a person's capacity to function properly in thought, emotion, and behavior. While the exact reason for this disorder remains a mystery, it may be related to a mix of structural and chemical changes in the brain. It's possible for both parents to be affected by the disease. Schizophrenia makes it difficult to maintain control over one's thoughts and actions. Disorganized speech, hallucinations, mobility issues, and muddled thinking are all hallmarks of schizophrenia (Daphne & Scott Rauch, 2008). The limbic system, the prefrontal cortex, and the basal ganglia are the primary brain areas affected by this condition. It affects declarative memory and the normal asymmetries of the brain in the medial temporal lobe in a mild way. Working memory is also impacted in the prefrontal lobe. As part of this project, we'll discuss the brain structures and functions associated with Schizophrenia disease. As part of this project, we'll discuss the brain structures and functions associated with Schizophrenia disease

Neuroscience of the Frontal Lobe in Schizophrenia Disorder.

The frontal lobe of the brain contains the brain's biggest lobe. It's thought to encompass nearly a third of the brain's surface area. Higher-level executive functions of the brain are carried out by the frontal lobes. It is in charge of processing information, and this is accomplished via the use of its working memory. The frontal lobe is also in charge of our ability to communicate verbally. The Broca's area of the brain is located in this location. Learning and interpretation of languages are the primary functions of this brain region (Daphne & Scott Rauch, 2008). The learnt language may be made to sound by using the working memory in conjunction with it. In schizophrenia, the medial frontal lobe is affected, causing hallucinations. Working memory is stored in this part of the brain. Alterations in speech and language understanding may occur when Broca's region is compromised. The deciphering of speech will be very difficult since Wernicke's region has been interfered with. Disorientation in speaking and understanding of vocal answers is a problem for the afflicted.

The ability to think critically and solve problems is also a function of the frontal lobe. Disorganization and planning of ideas are caused by changes. Schizophrenics are prone to lapses in attention and focus on a regular basis. Schizophrenic individuals will exhibit erratic and irrational behavior since the brain's limbic system is responsible for regulating social behavior and emotions (Daphne & Scott Rauch, 2008). People with mood swings and violent tendencies are common among them. Partially paralyzed persons are those who have had the lobe impacted. Some portions of the body may become paralyzed as the disease progresses.

Prefrontal Cortex Functions and Response during Schizophrenia Disorder.

Prefrontal Cortex Functions and Response during Schizophrenia Disorder. It occupies the pinnacle of the sensorimotor pyramid. Here, a confluence of highly processed sensory information is found (Daphne J. & Scott Rauch, 2008). For an adaptive reaction, the data will be merged and projected to several useful locations. The prefrontal cortex is responsible for complex cognitive tasks. High-level cognitive processes are carried out here. Schizophrenia patients have difficulty thinking and coming up with new ideas. These people are unable to think critically or with originality.

Individuals with this illness have a hard time adapting to social situations depending on previous experiences (Stephen et al, 2008). Excessive dopamine release is the cause of the dysfunction. As a major neurotransmitter hormone, dopamine plays a critical role in the regulation of motor, arousal, and emotional responses. Overreaction to a stimuli occurs because the disease interferes with the proper release of dopamine by neurons. Schizophrenia sufferers tend to be reclusive and agitated by their environment. Everything scares and frightens them.

Basal Ganglia Functions and Neuroscience to Schizophrenia Disorder.

The brain's subcortical nuclei, the Basal Ganglia, form a group. There is a claustrum, amygdala, subthalamus, substantia nigra, and corpus striatum included in this structure, among others. Motor tasks are carried out by the Basal Ganglia. Through the contact with the cerebral cortex and the corticospinal system, it carries out its activities (Olivia Guy, 2021). This is where the vast majority of sensory and motor neurons cross. Fine motions and inhibition of movement are handled by this part of the brain. This is where attention and cognitive functions are controlled (Stephen et al, 2008). Drawing, for example, is regulated in this area. This is where you'll find the incentive and reward system as well. This area of the brain is less connected to the prefrontal cortex because of the disease. As a result, people become clumsy and their thinking becomes disrupted. Dopamine, a neurotransmitter, will be released at a rapid rate, leading to hallucinations.

Neuroscience of the Limbic System in Schizophrenia

 The hippocampus, amygdala, and hypothalamus are all part of this system. It's deep in the cortex of the brain, right below the temporal lobes. Emotion and memory processing are handled by this system. As well as stimulation and instruction, this area serves to arouse and educate. The hippocampus and the amygdala work together to turn feelings into memories (The Human Memory, 2020). Flight or fight reactions may also benefit from this. Emotional deficits result from damage to this area, which makes it difficult to distinguish between fear, rage, and annoyance. Memory loss may result from the disorder's hippocampal impairment. During a disorder, the body's own steady-state regulation mechanism is thrown off. This means that one can't be alerted by things like light or scent. Temperature variations will cause a person to lose weight and become ineffective at keeping themselves warm or cold. A person's sex drive will decrease and they will engage in erratic behavior (Natalie, 2018). The gray matter in the temporal and prefrontal regions shrinks as a result of the illness. It has been shown that patients who have a smaller brain volume exhibit aberrant behavior. The brain's higher cognitive processes don't work together as they should. Antipsychotic medication may be used to treat the disease over a lengthy period of time.

Combined antipsychotic medicines should be used to treat schizophrenic individuals. Psychiatric counseling and other specialized medical treatment might be made available to them as well.

References

Daphne J. & Scott Rauch (2008). Neuroanatomical Systems Relevant to Neuropsychiatric

Disorders.

https://www.sciencedirect.com/topics/medicine-and-dentistry/prefrontal-cortex#:~:text=The%20prefrontal%20cortex%20(PFC)%20plays,prospective%20memory%2C%20and%20cognitive%20flexibility.

Stephen M, Andrew M. et al, (2008). Brain Structure and Function Changes During Development

of Schizophrenia

https://academic.oup.com/schizophreniabulletin/article/34/2/330/1926076

The Human Memory (2020). Basal Ganglia and Its Functions

https://human-memory.net/basal-ganglia/

Olivia Guy (2021). Limbic System

https://www.simplypsychology.org/limbic-system.html

Natalie Saar (2018). What Areas of Your Brain Are Affected by Schizophrenia?

https://www.livestrong.com/article/4337612-what-areas-of-the-brain-are-affected-by-schizophrenia/