Experience also influences the creation of connections (synapses) between neurons, which establishes paths for the many hierarchies of brain function. These pathways guide or influence our cognitive, emotional, psychological, physiological, and bodily reactions to our daily activities. As we learn new things and expand our abilities, these pathways can be strengthened or altered by learning or trauma. The human brain is always changing in response to experience. Certain regions of the brain are more likely to grow new cells and connect with other regions. This activity helps us develop new skills and understandings. Other parts of the brain that were not used recently may shrink a little because less activity means less need for storage space. However, even if you don't use a particular part of your brain, that region will still be present and active. It's just that there are fewer connections within it so it uses up less energy. Over time, these changes may lead to differences in how and where you process information depending on what you have learned and experienced. For example, research has shown that people who score high on measures of creativity tend to have larger volumes of brain tissue in certain areas.