Thalamus

The human nervous system is our electrical wiring of the body that transmits signals between different parts of the body. It has two components; the central nervous system and the peripheral nervous system. The nervous system is an intricate part of your body and life that 's made up of two separate systems, the brain, and spinal cord. During prenatal growth, the nervous system experiences many changes to gain its compound structure. The events of this early development include the…

Schizophrenia is one of the most complex and severe mental health disorders. Globally 1 percent of the population is diagnosed with schizophrenia, and roughly 1.2 percent of Americans have the disorder (Nemade & Dombeck, 2009). Schizophrenia is a lifelong progressive brain disorder, which is characterized by periods of psychosis. Currently, schizophrenia can be treated but not cured. No single factor is thought to cause schizophrenia; rather multiple factors contribute to the development of this…

lobe. Their functions are processing auditory information; processing visual information; processing sensory information and order complex cognitive behaviours respectively. Same inside the midbrain, there is the limbic system which consists of the thalamus, hypothalamus, the corpus callosum, the hippocampus and the amygdala. Their functions are directing incoming information to the cerebrum from receptors; maintaining homeostasis; connecting the left and right side of the brain, retrieving…

1. a. Retroactive interference occurs when more recent information gets in the way of when one is trying to recall older information. This new material interferes with remembering old information already stored in the long term memory (LTM). An example of this would be if an individual were to call his/her ex-girlfriend/boyfriend the new boyfriend/girlfriend’s name. This example shows that the recent name retroactively interferes with the previous name, which is evidently problematic for recall.…

The human visual system allows us to make sense of our environment. This system requires communication between the main organ (the eye) and the core organ (the brain) to understand external stimuli. The eye is extremely complex and requires various components for it to complete its function. The eye has 3 main layers the sclera, which maintains and supports the shape of the eye; the choroid, which provides oxygen and nourishment to the eye and includes the pupil, iris, lens; and the retina,…

cycle, vision remained the same, but also, hearing improved. For the mice placed in darkness, the tested neurons fired faster in response to auditory stimuli and could discriminate sounds better. These mice also developed more synapses between the thalamus and the auditory cortex. The cortex is an advanced sensory processing centre. The fact that neural connections developed in this area suggests that it might…

Parkinson’s disease is the most common type of Parkinsonism. It is also known as idiopathic Parkinsonism. The term idiopathic means “the cause is unknown” (Duvoisin, 1984). It is more common in older adults with the average age of onset being 60 to 61 years (Duvoisin, 1984). This disease affects about 1% of the population over the age of 60 and is more common in men than women (Gulli & Davidson, 2011). The cause of Parkinson’s disease is tissue death in the movement centers of the brain that…

1. The three main patterns of hormone secretion are humoral, hormonal, and neural. These hormone secretions are responsible for managing different hormones. Below is a description of each stimulus. • The humoral stimuli are responsible for managing the changes of the blood levels with non-hormone chemicals. For example, if the body was experiencing high levels of glucose, the humoral stimuli would trigger a hormone release from the pancreas known as insulin. Insulin’s job would be to bring the…

Morphine is a drug that is used for pain relief. It acts on the central nervous system to decrease pain. The drug can be given in many forms, such as through the mouth, insertion into muscle, under the skin, intravenously, into the spinal cord, and rectally. This drug can be used for both chronic and acute pain. A person who has recently undergone surgery or a pregnancy are examples for why someone may choose to consume morphine. Morphine can increase the pain tolerance for a person who is…

taste buds have 100 sensory cells that are most commonly stimulated by sugar, salt, and other acid. These sensory cells are the ones sending impulses to the cranial nerves, which can be found in the brainstem. It would then send the message to the thalamus going to the cerebral cortex that tells us what we just tasted. It may be a long process but it is obviously fast especially if we have tasted the food before. So if you try tasting foods that you have never tried, it would then be analyzed by…