are there.
In more advanced cases, they may become lost in places that should be familiar.
## 6. Increasing Language Difficulties
Dementia can affect both speaking and understanding.
A person may:
* stop in the middle of sentences
* repeat phrases
* substitute incorrect words
* have difficulty naming objects
* struggle to understand conversations
Communication problems can gradually become more noticeable.
## 7. Problems With Visual or Spatial Information
Certain forms of dementia can interfere with how the brain interprets what the eyes see.
This may affect:
* judging distances
* navigating stairs
* reading
* recognizing objects
* driving safely
