Exit strategies can do miracles with highly sensitive children who yell.
Quite simply, cognition refers to thinking. There are the obvious applications of conscious reasoning—doing taxes, playing chess, deconstructing Macbeth—but thought takes many subtler forms, such as interpreting sensory input, guiding physical actions, and empathizing with others.
We all experience moments when our emotions control our actions. When this happens, we often regret the things we say or do and wish we had been able to keep our emotions in check. There are techniques, such as meditation, that can allow you to do just that—along with various other benefits, like mood improvement and increased compassion and empathy.