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Aphasia
What is Aphasia?
Aphasia is the impairment of spoken or written language caused by injury to the brain. It is also commonly referred to as Dysphasia. There are several different categories and many different types of Aphasia.
What causes Aphasia?
Aphasia is usually the result of a brain tumor, lesion, stroke, or severe blow to the head. Right-handed people can only acquire Aphasia if they have an injury in the left cerebral hemisphere, whereas left-handed people can quire Aphasia from an injury in either the right or left cerebral hemisphere. Therefor, left-handed people are more prone to getting Aphasia.
Categories of Aphasia
There are several different systems for categorizing Aphasia. The more common one consists of two broad classifications: Broca's and Wernickes. In Broca's, the patient normally understands speech fairly well, but has difficulty in retrieving words and has hence naming objects or expressing themselves.
In Wernickes, the patient normally produces fluent but incomprehensible speech, or jargon, and comprehends poorly the speech of others.
The other systems places all types of Aphasia in categories labeled fluent and nonfluent. In fluent, the patient usually has a normal rate of speech without the hesitations or pauses common in nonfluent. Generally, people whose type of Aphasia falls under the fluent category have difficulty comprehending speech. In nonfluent, the patient usually produces effortful, telegraphic style speech marked by pauses. The ability of these patients to understand speech is usually good.
Types of Aphasia
There are many different types of Aphasia. Some of them are:
Global Aphasia: This is the most severe form of A...
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... remember certain automatic responses, like naming the days of the week, counting, and social responses, like please and thank you.
The most common characteristic in Aphasia is difficulty in naming.
Statistics
About one million people in the United States have Aphasia. The majority of these people have the disease as the result of a stroke. About one third of people with severe head injuries have it. It is estimated that about 80,000 people worldwide acquire aphasia each year. Most people who get it are in their middle to late years, although anyone can.
History of Aphasia
The earliest written references to speechlessness due to trauma can be found in the writings of the ancient Greek philosopher Hypocrites. It has only been in the past 20 years that scientists have been able to do productive research on Aphasia and its origins.
The two most common types of aphasia is Broca's and Wernicke's aphasia. Broca's aphasia is known as non-fluent because a patient has difficulty retrieving and producing fluent speech. Instead a Broca's aphasia patient produces slow speech and "telegraphic" skipping function words and grammatical morphemes. Wernicke's aphasia is known as fluent aphasia because the patients have no idea producing speech it just does not make sense and even made up words.
The exact cause of dyslexia is unknown. However, researchers believe dyslexia is a reading disability with underlying genetic, developmental and neurological causes (8). People with dyslexia have trouble reading despite normal or high intelligence and exposure to sufficient language instruction. Specific reading problems apparent in dyslexia include reversal of words and letters, difficulty in pronouncing new words, difficulty in making a distinction between similarities and differences in words (on for no), and difficulty in discerning differences in letter sounds (ten, tin) (2).
In my life I have seen how even while speaking the same language there can be communication problems. Adding the inability to speck the same language and then the complexity of describing medical conditions, I can see how the situation could turn out poorly and cause troubling effects. This chapter has helped me better understand why the Hmon...
Hegde, M. N. (2001). Pocketguide to treatment in speech-language pathology. (2nd ed., pp. 193-203). San Diego, CA: Singular Thomson Learning.
Many studies that explore effects of treatment intensity on aphasia recovery do so by looking at a specific type of intensive therapy known as Constraint-Induced Language Therapy (CILT). Pulvermuller et al. (2001) was the first to examine how constraints placed on a person with aphasia so as to limit them to only a verbal means of communication might improve verbal output. The idea stemmed from evidence in the physical therapy field that large motor improvements are possible when the lesser affected limb is constrained and intensive therapy is provided to the more severely affected limb (Taub, Uswatte, Pidikiti, 1999).
Aphasia is an acquired communication disorder that disrupts communication and it can deteriorate a person’s coping potential and quality of life (Parr, 2001) which involve damage to the parts of brain that contain language (ASHA, 2013). Statistics from United States indicated around 25-40% of stroke survivors developed aphasia (National Association of Aphasia, NAA, 2013). Aphasia will affect both the ability to produce or comprehend spoken language and written language while intelligence is left intact (NAA, 2013). In US, it is found that the most common cause of aphasia is stroke (85%) and others including Traumatic Brain Injury (TBI), brain tumor or other degenerative diseases (NAA, 2013).
Aphasia can be defined as a disorder that is caused by damage to parts of the brain that are responsible for language (“Aphasia” n.p.). Wernicke’s aphasia is a type of fluent aphasia (with the other type being nonfluent). It is named after Carl Wernicke who described the disorder as “an amnesiac disorder characterized by fluent but disordered speech, with a similar disorder in writing, and impaired understanding of oral speech and reading” (“Wernicke’s” n.p.). Wernicke’s aphasia can also be known as sensory aphasia, fluent aphasia, or receptive aphasia. It is a type of aphasia that is caused by damage to Wernicke’s area in the brain, in the posterior part of the temporal lobe of the left hemisphere. This area of the brain contains motor neurons responsible for the understanding of spoken language and is believed to be the receptive language center (“Rogers” n.p.). Wernicke’s aphasia can be most efficiently defined as a fluent language disorder commonly caused by strokes and characterized by difficulty comprehending spoken language and producing meaningful speech and writing which is both assessable by an SLP and treatable by a variety of methods.
Dyslexia is a very common learning disorder that affects more than three million cases reported every year. It can also be referred to as a language based learning disability. Dyslexia is a disability that impairs one’s ability (usually identified in children) to read and interpret different letters/words. It cannot be cured and is generally a lifelong condition but can be treated with therapists/specialists. This disorder does not translate to poor individual intelligence, just simply an individual that struggles in an area of learning. More often than not, this disability can be self diagnosed by an adult. This disorder is the most common learning disability in American children. Although, scientists cannot pinpoint the percentage of children
Alzheimer's Disease Introduction to Alzheimer's Alzheimer's disease is a progressive, degenerative disease of the brain. It was first described by the German neuropathologist Alois Alzheimer (1864-1915). in 1905. This disease worsens with advancing age, although there is no evidence. that it is caused by the aging process.
It is more basic and more widespread than traditional phonics programs. A primary cause of decoding and spelling problems is with the challenge of judging sounds within words. This is called phonemic awareness. Weak phonemic awareness causes individuals to add, omit, substitute and reverse sounds and letters within words. Many children and adults experience the symptoms of weak phonemic awareness. This causes weakness
Alzheimer’s disease, named after Dr. Alois Alzheimer, is a disease that is on the rise in America and the rest of the world. People should learn as much as they want about this disease, because as you age, your chances of becoming an Alzheimer’s Disease, or AD, patient increases. It is estimated that approximately 3 percent of Americans between the ages of 65 and 74 have the illness, and more than half of all people over age 85 have the ailment.
Salonen, L. (2013). L. S. Vygotsky 's psychology and theory of learning applied to the rehabilitation of aphasia: A developmental and systemic view. Aphasiology, 27(5), 615-635. doi:10.
In the field of cognitive neuroscience a memory study usually involves a combination of behavioral tasks and a machine that permits t...
Communication is very crucial in life, especially in education. Whether it be delivering a message or receiving information, without the ability to communicate learning can be extremely difficult. Students with speech and language disorders may have “trouble producing speech sounds, using spoken language to communicate, or understanding what other people say” (Turkington, p10, 2003) Each of these problems can create major setbacks in the classroom. Articulation, expression and reception are all essential components for communication. If a student has an issue with articulation, they most likely then have difficulty speaking clearly and at a normal rate (Turkington, 2003). When they produce words, they may omit, substitute, or even distort sounds, hindering their ability to talk. Students who lack in ways of expression have problems explaining what they are thinking and feeling because they do not understand certain parts of language. As with all types of learning disabilities, the severity can range. Two extreme cases of expression disorders are dysphasia and aphasia, in which there is partial to no communication at all (Greene, 435, 2002). Individuals can also have a receptive disorder, in which they do not fully comprehend and understand information that is being given to them. They can experience problems making sense of things. “Children may hear or see a word but not be able to understand its meaning” (National Institutes of Health, 1993, p1). Whether children have difficulty articulating speech, expressing words, receiving information, or a combination of the three, there is no doubt that the tasks given to them in school cause frustration. These children experience anxiety when...
Learning to tie shoes and ride a bike requires the encoding, storing, and retrieving of past observations of the procedure. With a lot of practice, children master these skills so well that they are able to remember them the rest of their lives. Memory is the storing of information over time. It is one of the most important concepts in learning; if things are not remembered, no learning can take place. As a process, memory refers to the "dynamic mechanism associated with the retention and retrieval of information about past experiences" (Sternberg 260). We use our memory about the past to help us understand the present. The study or memory in psychology is used in different ways, as well as there are many different ways to study how memory works in humans. In psychology there are many tasks used to measure memory, and different types of memory storages that human's use, such as sensory storing, or short term storing. There are also a lot of techniques that humans use to improve their memory, which they can use to learn, such as mnemonic devices. All these things can be classified as important issues in the study of human memory and ways of learning.