Introduction to Different Kinds of Cognitive Disorders

Abstract

According to WHO, around 50 million people are affected with cognitive disorders with nearly 10 million new cases per year. It is a neuropsychiatric disorder that mainly affects the elderly, and it leads to deterioration in memory, thinking ability, behaviour, attention, executive dysfunction, perception, and activities of daily living. The etiology of cognitive disorders is multifactorial including structural damages to brain, genetic, nutritional, and environmental factors. Three major categories include delirium, mild neurocognitive disorders, and major neurocognitive disorders. Some common examples of these disorders are dementia, corticobasal degeneration, Alzheimer's disease, mild cognitive impairment, vascular dementia, etc. Therefore, the chapter will emphasize the different types of cognitive disorders along with their causes and symptoms.