<prompt> Progressive cognitive impairment is Alzheimers disease is characterized byNominal aphasiaRecent memory lossNo behavioral abnormalitiesAll  <response>: Memory impairment is typically an early and prominent feature in dementia, especially in dementias involving the coex, such as dementia of the Alzheimers type. Early in the course of dementia, memory impairment is mild and usually most marked for recent events. As the course of dementia progresses, memory impairment becomes severe, and only the earliest learned information e.g., a persons place of bih is retained. Reference: Kaplan Sadocks Synopsis of Psychiatry: Behavioral SciencesClinical Psychiatry, 11th Edition, page 712. 