Atzheimer´s Dementia Posterior Cortical Atrophy

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This essay will discuss the form of Alzheimer’s dementia Posterior Cortical Atrophy, from the aspects of the journey by Sir Terry Pratchett. In addition the essay will discuss symptoms of the disease, pathology, and anatomical structures and locations.
Sir Terry Pratchett (Pratchett, 2013) has opened a discussion about dementia due to his diagnosis of Posterior Cortical Atrophy (PCA). PCA is a type of condition associated with Alzheimer’s disease (AD) that affects the parietal and occipital lobes damaging how the brain is able to process and understand visual information. This deterioration of visual processing can impact the person with PCA, in how the person can perform daily tasks such as reading, driving or even walking in certain situations such as poorly lit stairwells (Shakespeare, 2013). Sir Pratchett discusses that he is still able to write and with help he is still producing novels. He also states “There’s no clearly plotted pathway to the course of these diseases. Dementia attacks those facets which make us who we are, and it’s a deeply personal attack that defies prediction” (Pratchett, 2013).
Sir Pratchett discusses how PCA affects the visual acuity and ability to topographically map a situation, however he goes on the say that PCA does not completely rob you of your ability to communicate at a level of logical conversation that allows the person with PCA to hide their symptoms of dementia reasonably well (Terry Pratchett - Living with dementia (Part 2/4) , 2008). In a case study, persons with PCA experienced progressive visual cognitive issues where they had problems with object identification, visual matching and visual construction. In addition there were findings that people were experiencing issues processing la...

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