Change blindness is a failure to:

a. notice changes in the left side of the visual field due to right hemisphere damage.
b. notice anything constant in a scene and only attend to the changes.
c. notice a change between two scenes.
d. pay attention to an ever-changing part of the visual field.
e. notice changes in the right side of the visual field due to left hemisphere damage.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.