  Ross and his colleagues argued along similar lines in their discussion of gambling. They thought there were two benefits to the conceptual change that they wanted. First, it would provide a clearer and principled demarcation of the addicted gambler from the “problem gambler” which is currently somewhat arbitrary (201). They also showed the way to a better understanding of the nature of the addictive disorders more generally via the use of their preferred approach, which combined neuroscience and behavioural economics. They drew on prior research (ch. 6.2) to suggest that addictive gambling resembles dependence on stimulants (like cocaine) more than it does alcoholism, and hence enlarges our understanding of addiction more fully than purely behavioural criteria would do. The worry is that a behavioural approach misses the similarities and differences between forms of addiction by treating all as more or less the same, based on shared behavioural and phenomenological effects.