The link between Psychology and Neuroscience is very strong. Neuroscience, specifically the biological aspect explains the inter workings of neurotransmitters as well as other processes in the brain which eventually correlate to behavior and habits. Psychology looks at the behavior/habits and attempts to attribute the behavior to an underlying process. The two topics depend on each other to help researchers understand and build a larger picture, our behavior. This is merely an example there are other specific links that show correlation between the two topics.