Changes in eye movements while reading and the inability to predict the next words in a sentence could be early signs of Alzheimer's disease, researchers suggest. Eye movement test results of 18 patients believed to have AD showed that they were less focused, with slower eye movements and longer pauses when rereading and processing new information compared with controls, which could be caused by impairments in working and retrieval memory functions. The study in the Journal of Clinical and Experimental Neuropsychology suggests that eye movement analysis could help detect early AD.

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