The mark of the beginning of the representational thought is
when children are likely to be able to internalize images in terms of their own
sensorimotor activities, this way, this will mark the beginning of a representational
thought that has already occurred.
The answer is response inhibition or also known as inhibitory control.
This is a trademark of control. It is a mental process that allows an
individual to constrain their impulses and natural, habitual,
or dominant behavioral reactions to stimuli. In other terms,
this concept refers to the suppression of no longer needed or inapt actions
which supports flexible and goal-directed behavior in ever-changing
environments.