Learning how to open up your hand again from a 7 month old
If you have symptoms like what I had (thumb curling into the palm) you might be experiencing problem opening up your hand.
My 7 month old son is a natural excerpt at opening and closing his hand.
Since he has not mastered tactile movement involving his fingertips yet, he grabs and releases objects with his whole hand ( as opposed to opening and closing by spreading fingers away from each other..)
Here we talk about incrementally reviewing the process of what it's like to open up the hand with imaginary balloon exercise.