This type of love depends on nothing other than the familial bond and doesn't break down based on what the child or parent does—at least in an ideal scenario. In the purest sense, unconditional love is about caring about the happiness of another person without any concern for how it benefits you. It is also sometimes referred to as compassionate love. Research tells us that the parts of the brain that light up during unconditional love are similar to those involved in romantic love and maternal love and are linked to the brain's reward system. This suggests that unconditional love may be rewarding without receiving anything in return.