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Assessing methodological and statistical issues in a case study in cognitive neuropsychology :Semantic impairement with and without surface dyslexia, implications for models of reading - Essay Example

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Semantic dementia, in a nutshell, is characterized by the deterioration of one’s semantic memory – that which deals with meaning, understanding, and concept-based knowledge in general – while other cognitive functions remain intact (The Brain From Top to Bottom, accessed…
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Assessing methodological and statistical issues in a case study in cognitive neuropsychology :Semantic impairement with and without surface dyslexia, implications for models of reading
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Download file to see previous pages It is associated with a number of conditions such as surface dyslexia, which will also be discussed in this paper. This paper’s objectives, therefore, are to discuss in detail the symptoms of both conditions, as well as the results of a case study conducted testing the correlation of the two. Also intended is an objective discussion of the case study’s strengths and weaknesses, especially where the results are concerned.
The Association for Frontotemporal Dementias (accessed 12/01/09) further explains that those with semantic dementia retain the ability to speak fluently, but that they become more and more unable to express themselves intelligibly. Specifically, in the latter stages, they start to lose their understanding of even basic words – a serious impediment to communication, to be sure. In time, they start to experience behavioral, social and motor difficulties as well – all of which are common to FTDs in general.
Dyslexia in general, adds Valerie Suydam (2008), is a language disorder in which one diagnosed has difficulty reading and/or writing properly, and is distinguishable from normal reading mistakes in that a dyslexic individual tends to commit the same mistake repeatedly. It has an equal chance of manifesting in both genders and of all intelligences. In particular, surface, or orthographic dyslexia, is a subtype in which words are pronounced the way they are spelled (such as “stra-yigt” for “straight”). This, according to Elise Caccappolo-van Viet et al (2004), is more prevalent in such languages as English and French due to the relationship of orthography with phonology – few words are spelled the same way they are pronounced.
According to Anna Woolams et al (2007), the most glaring sign of surface dyslexia is the regularization error – words which are supposed to have exceptional spelling-to-sound correspondences are instead read according to how the word looks like it should be pronounced, rather than ...Download file to see next pagesRead More
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