What is Aphasia
Aphasia is a communication disorder that is the of damage to the brain, specifically the left hemisphere. Damage to this areas result in difficulties with speaking, language, reading, writing, while intelligence remains in tack. It is typical caused by a stroke…. But damage or injury to any part of the brain including traumatic brain injury, progressive neurological disorders
Aphasia is an acquired neurogenic language disorder characterized by impairment of an individual’s ability to comprehend and produce language in written, spoken communication. Aphasia is the most common communication disorder resulting from brain damage. The leading causes of aphasia are Cerebrovascular accidents (CVA’s) or strokes. They can also be
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Speech fluency is one of the ways in which classic aphasic syndromes can be classified. Nonfluent aphasics usually have damage in the front have of hemisphere dominate for language. This is localized anteriorly to the central sulcus. Patients that present this type of aphasia have a slow, effortful rate of speech characterized by frequent pauses between syllables and words (Brookshire, 2007).
Broca’s Aphasia falls under this category. The Broca’s make up the lower part of the premotor cortex anteriorly positioned to the primary motor cortex for speech muscles and primary location for planning speech movements. Patients who present with this form of aphasia have segmented speech separated by abnormal pauses. They are able to comprehend spoken and written language but demonstrate difficulty in speaking and writing. (Brookshire,
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The Wernicke’s area is responsible for associating meaning to speech sounds and influences areas of the language that call this skill such as reading and writing. (McCaffrey)
Global aphasia is a mix of fluent and nonfluent , for this reason often considering to be more severe. It has both anterior and posterior lesions most often caused by an occlusion to the trunk of the middle cerebral artery largely affecting regions of the perisylvian zone (Brookshire, 2007). Patients that present with the form of a aphasia have server impairments in receptive, expressive and comprehension forms of language.
The characteristic of aphasia are better understood when described within the specific classification and type exhibited. While Broca’s, Wernicke’s and Global aphasia are considered the most common aphasic syndromes within a perisylvian zone, there are others, less common lesions that occur outside this zone. Their symptoms are classified by patterns of performance as it relates to specified area of damage. (Appendix: Common Classifications of Aphasia). However, for our purposes we will briefly cover the
...ut a 7 years old girl which loss her ability to understand speech. She had a normal hearing and understood various environmental sounds. Her brain was computerized using axial tomography but the result was normal. But electroencephalogram showed wave activity from her left side of the temporal leads. She was diagnose as having verbal auditory agnosia. The treatment consisted of diazepam therapy. Diazepam therapy orally began with taking 2 mg diazepam every day. Diazepam is commonly used to treat anxiety,panic attacks,insomnia and some other medical issues. One year later, her impaired auditory was dramatically improved. The dichotic listening test revealed a left ear advantage for both environmental sounds and spoken words. The results seemed to suggest that in this patient the right hemisphere might be functioning as a speech center instead of the left one.
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.
Seikel, J. A., King, D. W., & Drumright, D. G. (2010). 12. Anatomy & physiology for speech,
Ataxic dysarthria is one of several types of dysarthria. “Dysarthria is a group of motor speech disorders resulting from disturbed muscular control of the speech mechanism due to damage of the peripheral or central nervous system” (Hedge, 2001, p. 198). In specific, ataxic dysarthria is a disorder that affects the control of speech production due to damage to the cerebellum or the neural pathways that connect the cerebellum to other parts of the central nervous system.
Acquired prosopagnosia refers to when the onset of prosopagnosic symptoms occur after brain trauma, resulting in damage to the cortex of the brain from hitting the inside of the skull (Bodamer, 1947). It can also refer to the initiation of symptoms after brain tissue dies (ischemia) such as from loss of blood supply like from a stroke, or a neurodegenerative disease (Villa et al., 2013, pg. 375).
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.
In the partial alphabetic phase individuals pay attention to different letters in a word in order to attempt its pronunciation, usually the first and final letters of a word are focused on, Ehri referred to this as ‘phonetic cue reading’. This is a skill which along with others which shows phonological awareness.
Broca's aphasia characterizes patients as people who has loss the production of complete sentence structures in speech and writing. Although the individual may retain the usage of nouns and verbs, the aphasic may have lost all forms of pronouns, articles, and conjunctions (3).
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.
Auditory processing is the process of taking in sound through the ear and having it travel to the language portion of the brain to be interpreted. In simpler terms, “What the brain does with what the ear hears”(Katz and Wilde, 1994). Problems with auditory processing can affect a student’s ability to develop language skills and communicate effectively. “If the sounds of speech are not delivered to the language system accurately and quickly, then surely the language ability would be compromised” (Miller, 2011). There are many skills involved in auditory processing which are required for basic listening and communication processes. These include, sensation, discrimination, localization, auditory attention, auditory figure-ground, auditory discrimination, auditory closure, auditory synthesis, auditory analysis, auditory association, and auditory memory. (Florida Department of Education, 2001) A person can undergo a variety of problems if there is damage in auditory processing . An auditory decoding deficit is when the language dominant hemisphere does not function properly, which affects speech sound encoding. (ACENTA,2003) Some indicators of a person struggling with an auditory decoding deficit would be weakness in semantics, difficulty with reading and spelling, and frequently mishearing information. Another problem associated with auditory processing is binaural integration/separation deficit. This occurs in the corpus callosum and is a result of poor communication between the two hemispheres of the brain. (ACENTA,2003) A person with this will have difficulty performing tasks that require intersensory and/or multi-sensory communication. They may have trouble with reading, spelling, writi...
There comes a time in our life when we know what we want to say, but it does not come out the way we thought it would. Such as being worried about reading out loud in class, going up to an employee in a fast food restaurant to order a simple meal, or making a presentation in class can be terrifying for most individuals with an articulation disorder. An articulation disorder consist of having difficulties producing sounds, substituting sounds, leaving out letters in a word, or adding or changing letters in a word. In most cases when individuals have trouble articulating words he/she might have problems with the main articulators which include: the jaw, lips, teeth, tongue, velum, alveolar ridge, and hard/soft palate. These articulators play
Stuttering is a disorder of oral communication and it is characterized by disruptions in the production of speech sounds, also called "disfluencies" (American Speech-Language-Hearing Association, 2014). It usually emerges in childhood and affects around 5% of the population (Guitar, 2006), even though there is some variation in the incidence of stuttering in different studies. During infancy, it is common for children to present dysfluency because of the complex process of language acquisition and development. These disfluencies are normal and tend to disappear in 80% of the children, however for some it may evolve into a chronic state that is called developmental stuttering. Stuttering can also occur in two other circumstances, from injuries, which is called acquired or neurogenic stuttering and another one, involving psychological aspects (Oliveira et. al., 2012). Perkins, Kent and Curlee (1991) focused on the theories to explain the possible causes of disfluency and theorized that speech disruption and time pressure are the two important variables that may account for the stuttered dysfluency.
In this world, humans and animals alike have come to communicate by using various mechanisms. Humans have advanced themselves beyond other organisms by using language, or a set of codes and symbols, in order to express themselves to others. Language has brought about a means to create new thoughts, to explore, and to analyze our everyday surroundings. It has also enabled us to retain past memories and to look deep into the advances for the future. However, for some individuals, this tool for communication has been plagued by a language and speech disorders, such as aphasia. Aphasia is the loss of the ability to speak or understand speech or written language. It is often detected at an early age, and contributes to the general class of speech and language disorders affecting "5% of school aged children" (1) . Aphasia is classified into three categories. The main two are receptive or sensory aphasia and expressive or motor aphasia. Receptive aphasia affects the input side and "the ability to understand spoken or written language may be partially or totally lost" (1) . Those with expressive aphasia "can speak but not find certain words or names, or may be totally unable to communicate verbally or by writing" (1) . For a majority of affected individuals, there is a combination of the two. The third type is conduction aphasia. This "involves disruption of transmission between the sensory and motor ends of the circuit" (1) . Here, individuals are able to produce speech despite the lack of connections to the input side. It seems that the ability to speak has a lot to do with your surroundings and how much emphasis was placed on developing this skill during the first few years after birth. Afterall, it's known that the first few years are critical because this is the time when the brain is "plastic" and is rapidly changing and being molded. By the time that adolescence is reached, the brain has become "less plastic". In this paper, I would like to explore theories proposed to try to understand the origins of this impairment.
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...
In this paper the writer is going to present an overview of the field of neurolinguistics which is the study of the mental faculties involved in the perception, production, and acquisition of language. In other words, the neurobiological factors that enable humans to acquire, use, comprehend and produce language.