As a freethinker I usually dont mix religions with Psychology.
But sometimes in order to demonstrate a point, I have to break my
silence. I have a friend who is into child development; she is
actually the boss of a childcare center.
One thing I dont see eye-to-eye with her is that she likes to use
the concept of object permanence to support the
existence of God/gods and the backward mentality of
non-believers. (I do not wish to turn this into another religions
thread so I shall not disclose her religion) 
According to the Swiss psychologist Jean Piaget
(1896-1980) very young babies perceives the world around
them as impermanent. Basically it means that if
they are unable to perceive an object in a certain ways, it
ceases to exist. For example if you takes a toy away from
a baby while he/she is playing with and keep it away from his/her,
he/she will simply lost interests in it. She/He may tries to grab
it away from you, but once he/she cant see it, to him/her, it
ceases to exist, out of sight, out of mind.
As we grow older we know very well that the world continue to exist
although we may not see it. We understand the concept of
object permanence.
So my dear friend loves to use this concept to belittle
non-believers. She will bring in this concept and proceed to ask
them why are they behaving like babies? If you are unable to see
God/gods, does that mean that God/gods dont exist? Of course those
who have not read about Jean Piagets theory will be completely
speechless and she will continues to bombard them with all her
other theories. 
What I want to point out is that there is a flaw in her
argument.
In object permanence, the baby has actually seen the
toy. It was only when it was taken away from him/her when
he/she perceives it as non-existence. Religion is all about
Faith. To a religious person, he/she does not to see
God/gods to know God/gods exists. As for non-believers, since they
do not share the same faith, it is understandable that they would
first want to be able to perceive God/gods in a certain ways before
making a decision.
Thus it will be unfair to use the concept of object permanence to
explain why non-believers do not believe the existence of
Gods/gods.
So Cindy, did I answer your question? 