What Are the Different Types of Cognitive Disorder?
Cognition is the brain’s ability to retain and use information. A cognitive disorder refers to any medical condition that affects how the brain processes and stores information. It can result in memory loss, faulty perceptions or a combination of both. Cognitive disorders can be genetic, environmental, or caused by an injury. Delirium is a cognitive disorder that appears in episodes and can be temporary or reoccurring. It deteriorates the brain’s ability to process new information or be aware of its surroundings. Hypoactive delirium is when a person who is unaware of his or her surroundings appears to be lethargic or unresponsive, while hyperactive delirium episodes make a person hostile or aggressive. Mixed delirium is a combination of hypoactive and hyperactive symptoms. Delirium has no definitive cause, although stress, alcohol, or medications may contribute to episodes.
