I realize that this is aimed at a popular audience, but describing brain structure and function with imprecise words like 'circuits', 'controls', 'connected to

I realize that this is aimed at a popular audience, but describing brain structure and function with imprecise words like 'circuits', 'controls', 'connected to' and 'involved in' without being clear as to a specific physical, biologic mechanism completely undermines his point. Additionally, appealing to one studies which have not been independently reproduced, which are not double blind does little to dissuade me that the bulk of neuroscience is an exercise in confirmation bias.