yeah, especially in 'getting use' to something. if regular air all of a sudden started smelling like roses, it would be immediately noticeable, but it probably

yeah, especially in 'getting use' to something. if regular air all of a sudden started smelling like roses, it would be immediately noticeable, but it probably wouldn't be long before we couldn't smell anything different about the air. That has lots of implications on neuron firing, for example, people could have feelings of their significant other, sex, happiness, etc all of a sudden smelling this rosy air.