What is characterized by disorganized thoughts, inattention, and decreased levels of consciousness?

The condition characterized by disorganized thoughts, inattention, and decreased levels of consciousness is delirium. Delirium is an acute confusional state that often arises in response to a medical issue, substance intoxication or withdrawal, or severe physiological stressors. Individuals experiencing delirium have difficulty focusing and maintaining attention, which can lead to disorganized thinking and fluctuations in their level of awareness and responsiveness.

This state contrasts with other cognitive disorders. For instance, dementia is a progressive, chronic condition associated with memory loss and cognitive decline but does not typically present with sudden changes in consciousness or confusion. Amnesia primarily involves memory deficits but does not inherently include disorganized thought processes or changes in awareness. Psychosis can include disorganized thoughts and altered perceptions of reality; however, it is not exclusively associated with decreased levels of consciousness as seen in delirium. Thus, the symptoms of delirium make it the condition that aligns with the characteristics outlined in the question.