Final answer:
A problem with proprioception can cause difficulty in knowing where your hand is when not looking at it and can also impact balance and posture.
Step-by-step explanation:
If you have a problem with your proprioception, it means that you might have difficulty knowing where your hand is when you're not looking at it. Proprioception is the sense that allows us to perceive the position and movement of our body parts without having to visually see them. It relies on the proprioceptive stimuli of joint and muscle position, as well as information from the inner ear, to maintain balance. For example, if you were to close your eyes and try to touch your nose with your finger, you would be able to do so accurately because of proprioception.
If someone has a problem with their proprioception, it can also affect their ability to keep their balance. They may have difficulty walking straight or maintaining a stable posture.