-Affects modalities such as visual or auditory
-Example: Auditory verbal agnosia (pure-word deafness)—difficulty understanding spoken language but recognizes environmental sounds
-Could hear a knock on the door and know that that's what it is, but If someone tells you to open the door, you can't understand that.
-You could say, "I don't understand." (Articulation/speech is intact)
-Could understand it if they wrote it down.
Example: visual agnosia (can see the object, it's shape and colors, but can't make meaning out of what it is.)
-May be difficult to assess comprehension if this is the case, but could make use of their tactile system.