Cognitive deficits are changes in thinking, like difficulty solving problems. This category also includes dementia and memory problems, as well as many kinds of communication challenges.
A stroke often alters communication, with its location influencing what will be affected. In addition to communication problems like aphasia, a condition affecting the ability to understand or process language, communication deficits may include decreased attention, destructibility, and the inability to inhibit inappropriate behavior.
Problem-solving ability is sometimes affected, usually more in survivors of right-brain stroke.
American Stroke Association