Semestre 3 Extra Credit

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The Island of the Colorblind was written by Oliver Sacks to share his experiences in his journeys to Pingelap, Pohnpei, Guam and Rota. Oliver Sacks traveled to Pingelap and Pohnpei with his colleague, Robert Wasserman, an ophthalmologist, and Knut Nordby, a colorblind Norwegian scientist. He went there to study and experience an island where congenital achromatopsia, a severe colorblindness that is normally very rare, affects 10% of the population. They were welcomed by the people of Pingelap, especially those with achromatopsia. They were shown around the island and introduced to many of the people that lived there. Next, they traveled to Pohnpei, where they met more achromatopes. Earlier, in 1993, Oliver Sacks was invited to go to Guam by John Steele, a neurologist that lived and studied in Guam, to study an endemic disease, lytico-bodig. Lytico-bodig is a disease that affects people that live on Guam and has been studied for 40 years, but the cause of it has not yet been discovered. The disease is either seen as “lytico”, which resembles ALS, or as “bodig”, which resembles Parkinsonism. After Guam, Sacks traveled to Rota, a neighboring island, to see the cycads that are native to the island. Sacks had been fascinated with cycads since he was young and wanted to see them in nature. He learned a lot from his visits to the islands.
In Pingelap and Pohnpei, Oliver Sacks experienced communities where colorblindness is much more prevalent than it is in most communities around the world. Congenital achromatopsia, the severe colorblindness seen in Pingelap and Pohnpei, causes those affected to have no cones in their eyes. Cones allow people to see small details and color. People without cones have to use the rods in their eyes instea...

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...ized, it produces large seeds that are used by the native people of Rota as food.
I would definitely recommend this book. I really liked The Island of the Colorblind by Oliver Sacks. The book is well written and explains in depth many of the topics discussed. Sacks also includes the history of the islands and many details of life on the islands that he visited. I also liked how he included his interactions with the people that have been affected by lytico-bodig or congenital achromatopsia on the islands that he visited. I would recommend this book to people who like plants, because it describes cycads in a lot of detail. I would also recommend this book to people who are interested in diseases, because it discusses lytico-bodig and colorblindness in depth, and to people interested in the culture of Micronesia because Sacks tells of his experiences on the islands.

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