Do we have access to our own mental processes? High-‐level v. low ...

Subjects exposed to a series of increasingly
strong shocks.
Experimental subjects given (what is
actually) a placebo pill. They were told that
the pill would produce “anxiety” symptoms,
i.e., the kind of physical symptoms
associated with fear of upcoming shocks.
Experimental subjects were willing to take
four times as much amperage as control
subjects.