Striatum

substantia nigra. When dopamine levels decrease, it causes abnormal brain activity, leading to signs of Parkinson 's disease. The dopamine released by nerve cells of the substantia nigra stimulates another brain region, the corpus striatum. Without enough dopamine, the corpus striatum cannot control its targets, and so on down the line. Ultimately, the movement patterns of walking, writing, reaching for objects, and other basic actions cannot function properly, resulting in the symptoms of…

effectively to live a longer and more stable life. Huntington’s can be carried by one person and hereditarily given to their offspring making this a genetic disease. Also, Huntington’s disease is metabolic disease because it is at loss for neurons in the striatum. Huntington’s disease is common, but still under research, meaning they do not have full evaluation answers of the disease. This disease has been looked over so that more people can know about it and maybe prevent the passing…

neurodegenerative movement disorder, affecting over six million people worldwide. The pathological finding associated with PD is the degeneration of dopaminergic neurons of the pars compacta of the substantia nigra leading to the depletion of dopamine in the striatum. Parkinson’s disease psychosis (PDP) is a common symptom of PD but is difficult to distinguish. Although it can occur at any stage of the illness, it is a particularly salient issue for patients who are in the late stages of PD and…

teenage brain, though it’s not fully developed, comes with some positive quirks: it’s sensitive to rewards and to its environment, which makes the teen themself so sensitive. This heightened responsiveness is caused by the early development of the striatum and dopamine reward system. This is why teens seem to enjoy sweets or social interactions…

Pathophysiology of Huntington’s Disease Huntington’s disease is a genetic neurodegenerative disorder that causes both motor and cognitive dysfunction in those diagnosed. Since Huntington’s is an autosomal-dominant disorder, those expressing the gene will develop the disorder, and children of the affected individuals will have a fifty percent chance of inheritance (Walker, 2007). The effect of this disease causes deterioration in many areas of the brain, however, this deterioration occurs at a…

example, is remembering a present given to you. It is a singular event that holds personal value and is held in the temporal lobe. Procedural however, is a skill so well learned that one does not even need to think about it, and is carried within the striatum and basal ganglia. These are prudent to know, since it is the basis within the experiment.…

One of the many diseases caused by faulty cell-to-cell communication is Alzheimer’s disease. This disease causes many cells in the brain to die. Therefore, as more and more of the cells die, it causes the brain to shrink. What causes the brain cells to die, which then causes the brain to contract, is the unusual twist of the protein called tau. Tau is a protein in the brain that delivers nutrients and other important elements to the brain cells. The effect of the twisted protein inhibits the…

There are brain regions that Anorexia and Bulimia develops such as, the orbitofrontal cortex, which tells people when to stop eating. Both have structural and functional differences. Women with Anorexia tend to have more activity in dorsal striatum which is linked to habitual behavior, Anorexia Usually affects women more than males (Weir,2016). A neurotransmitter known as Dopamine influences learning, attention, movement, and emotions (Myers,2014). Dopamine activity is in Bulimia and Anorexia…

impulsiveness is a symptom teenage infatuation. At such an early age, the brains of the teenagers are not fully developed, and this leads them to committing actions that an adult in the same situation might not commit. Studies show that, “In adolescents, the striatum is more reactive than in adults, making adolescents more excited by novelty and feelings of reward ” (Broadway 3). Neuroscientists have determined…

During early adolescence, there is a decrease in dopamine receptor density, both in the striatum and prefrontal cortex (Doremus-Fitzwater, Varlinskaya & Spear, 2010). It is believed that due to this decrease in dopamine, adolescents engage in novelty and sensation seeking activities, through natural or drug rewards, to increase dopamine availability…