" The dorsal striatum says, “Let’s do it this way, because we’ve always done it this way.” And the prefrontal cortex says, “But that won’t help us get where we want to go.” Meanwhile, the nucleus accumbens says, “Ooh, that cupcake looks delicious. "

― Alex Korb , The Upward Spiral: Using Neuroscience to Reverse the Course of Depression, One Small Change at a Time