The Cognition Impairments in Alzheimer’s Disease

Alzheimer’s disease (AD) is diagnosed when it has reached the stage at which cognitive (i.e., episodic memory impairment) and neuropsychiatric symptoms interfere with social functioning or activities of daily living. The dementia diagnosis is strongly based on clinical judgment, for which appropriate assessment instruments are of vital importance Diagnosis and treatment of AD at early stage is important issue in rehabilitation fields and speech and language pathology. We conducted a search in PMC, Web of Science, PubMed, Scopus, Medline, SID, Google Scholar and Ovid databases. The present information is available reviewing the articles from 1996 to 2019 through the search of the resources. Cognition analyses have already been used in patients with dementia. The disorder impairs the basic level of cognition skills as well as higher level. Therefore, AD patients is characterized by cognition problems such as memory, languag e and visuspatial functions. They have attention deficits include selective and sustain and divided attention problems. AD assessment is generally based on cognitionand language ability. Speech therapy is one of the most important rehabilitation field for AD patients, which can help regain important cognitive and communication functions. An SLP will also teach to AD patients how to adapted and relearn speech and language, also canhelp AD patients regain cognitive function and memory, which can improve Activity of Daily Living. Speech therapy methods can decrease brain degeneration rate in Alzheimer’s Disease. Conclusion: The aim of therapy is to recover as much of speech as possible and/or findalternative ways of communicating.