Oliver Slack: Unilateral Neglect

however, serious limitations in tracking impairments back to lesioned areas of the brain. First, lesions commonly

The case study my classmates and I studied was the case of Mrs. S who was suffering from unilateral neglect. According to our textbook, Psychology of Brain Injury, unilateral neglect is a more of a broad name for this disorder (p. 208). Neglect is also referred to as hemineglect, visuospatial or hemispatial agnosia, and visuospatial or hemispaial in attention (Zillmer, Spiers, & Culbertson, 2008, p. 208). There is no strict definition to unilateral neglect in our textbook, however, it is characterized by a patient’s inability to recognize or acknowledge the opposite, or contralateral, side of the their body and their world. Unilateral neglect most commonly occurs after someone has suffered a stroke, most commonly in the right parietal lobe,

Using a real human brain, Dr. Taylor explained the separation of the brain’s right and left hemispheres. The two cerebral cortices are completely separate from one another, but maintain communication via the corpus callosum. She described the right hemisphere as a parallel processor, thinking in images and learning from body movement. The right hemisphere is responsible for gathering sensory input, in the form of energy, from the environment around us. The left hemisphere, according to Dr. Taylor, is a serial processor, interpreting the sensory information gathered by the right hemisphere. The sensory information is analyzed and categorized by the linear and methodical thinking of the left hemisphere. Dr. Taylor believes the left hemisphere is responsible for interpretation of the past and future, as well as, an individual’s self-awareness. The

The Direct-route pathway course inquiries, and the Inverse-route pathway course examinations utilize the use of a vocal policy or the modest recollection of the preceding practice are no longer successful. The Giusberti, et al, (2010) study has adopted a viewpoint that has never been practiced before, and they are required to represent the psychological atmosphere. It recommends that the frequency of images hemineglect disturbs the capability to steer when the subject has to use a mental diagram of the situation (Giusberti, et al, 2010). It is still being discussed whether the discrepancy detected in subjects is owed to struggles in constructing a psychological chart, recollecting it from recollection, or utilizing it throughout direction finding (Giusberti, et al, 2010). Appraising hemispheric engrossment in graphic psychological imaginings, and the findings showed that right and left intellectually impaired subjects with no sign of representative hemineglect completed faultlessly in the visualizations tasks (Giusberti, et al, 2010). Useful neuroimaging experiments recorded that both hemispheres are complicated in psychological imaginings treatment (Giusberti, et al,

Another visual condition that has intrigued the neurologist for over a century is a condition called visual neglect. After having a stroke in her parietal lobes in her brain, Peggy Palmer had normal vision, which should allow her to draw a copy an image without difficulty. When Peggy was asked to draw a copy of a daisy, they found that she only would draw the right half of the daisies image. She didn’t realize this until the it was told to her, then she could see that she in fact was missing the entire left half of the daisy. Dr. Ramachandran explains that as we see an object, the visual input will split into two different pathways. One is the “how?” and the other is the “what?”. The “how” deals with the area of the brain that mainly controls

Hemineglect also known as unilateral spatial neglect, hemispatial neglect, hemi-inattention, hemisensory, parietal neglect or spatial neglect (Kerkhoff, 2000), is a condition in which patients are unable to attend and respond to the contralesional side of space (Dijkerman, Webling, ter Wal, Groet, & van Zandvoort, 2003). Hemineglect is characterized by the lack of spatial awareness, most commonly on the left hemispace (Parton & Malhotra & Husain, 2004). The most common form of hemineglect, is that of patients who have right hemisphere lesions commonly found to damage the ‘where’ pathway, most commonly after a stroke. These kinds of patients tend to neglect the left hand side of space (Driver & Mattingley, 1998). Although it is not

Thank you very much for referring Ms. Choi for geriatric assessment. The main concern is that of decreased cognition.

Hemi spatial neglect is a condition in which patients fail to respond to stimuli on the side of the body opposite the brain injury (Myers & Blake, 2008) Neglect may be caused by injury in either brain hemisphere, however, it is more sever and persistent after a right hemisphere brain injury (Brookshire, 2015). Many deficits exist

Taylor, a scientist studied the biological and chemical variants in mental illness (Taylor, 2013). Her interest in schizophrenia arose from desire to understand the inner workings of her brothers’ brain. Prior to her stroke Taylor (2013), was a researcher in the department of psychiatry at Harvard as well as advocate for the National Association of Mental Illness (NAMI) In 1996, at the age of 37-years-old she was able to analyze her stroke through scientific and personal perspectives (Taylor, 2013). As result of her stroke and education, Taylor (2013) theorizes that the right hemisphere and left hemisphere function differently from one another. Specifically, that the right hemisphere is an energy connected to the

Although examining processes presents difficulties, studying patients who have sustained brain damage can provide insights into parts that play a role in cognitive processes. Findings from case studies are extrapolated to the general population to provide an insight into normal cognition. An early example and often-cited case study is Phineas Gage who suffered damage to his frontal lobe because of an accident in 1848; prior to the accident, he was friendly and dependable, however after the accident, he became unreliable and his social skills suffered, this suggests the frontal lobe is involved in planning and social skills. Damasio (1994, (cited in Jansari, 2010)) recreated damage sustained by Gage, after a patient exhibited the same changes in behaviour after undergoing surgery to remove a tumour in the frontal lobe. The recreation confirmed the suggestions made at the time of Phineas Gage, thus providing an insight into how a part of the brain the frontal lobe in this case is involved in cognitive functioning.

This study mentions specific demographics such as gender, diagnosis, and the age which was a mean of 56 years old. The patients all had some neurologic injury which likely rendered them in the same condition neurologically. The demographic variables in this study likely would not affect outcome due to the fact they can all be cohort based on diagnosis.

During my reading this an article, I found some information in this an article pertains to Right Hemisphere Stroke: A Victim Reflects on Rehabilitative Medicine book. For example, Johnson could recognize, even understand isolated words but when they come together in a sentence, Johnson would have difficulty dealing. On the other hand, the article presented that the respondents only presented higher difficulties in sentence formulation. This supports the premise that this tool is highly sensitive to language production. It also reflects the hypothesis that the right brain performs a complementary role to the left brain, with the execution of more complex tasks, such as formulating words with two or more target words, readily influenced by reduced

Neglect is a disorder of attention that typically follows brain damage that is unilateral. It has been reported as a strong predictor of stroke recovery, in terms of general functioning (Gallagher et al., 2013). In neglect, the patient is unable to notice, or have any

With the same method, Patients with Other neurologic disorders have been diagnosed based on the results of prior history, physical examination and Brain MRI. All healthy control group members also underwent a thorough investigation to confirm that they are healthy. All participants were matched in regard of socioeconomic status, gender and age.

Many people and researchers believe that the left brain and the right brain dominance theory are myths. Each side of the brain controls different types of thinking many are said that if your left brained your more logical, analytical and objective. If you’re right brained your more intuitive, thoughtful and subjective. After many researches the brain is not split into thinking halves as people think they say that the brain works better if it thinks together. Neuroscientist know that the brain works together to perform a wide variety of tasks and they communicate through the corpus callosum, which is a wide, flat bundle of neural fibers beneath the left and right cerebral hemispheres and facilitates the communication. The research of the left, right brain dominance is very much outdated; it’s more of a historical interest. This in saying the myth is that right- handed people are left brain dominance and left- handed people are right brain dominance. Klingberg, T (2008) notes, “The working research of the brain has evolved and changed over time as researchers have learned more over time about the working of the brain.”