The
sensitivity or insensitivity of a
human, often considered with regard to a particular kind of
stimulus, is the strength of the
feeling it results in, in comparison with the strength of the stimulus. The concept applies to physical as well as
emotional feeling. Stimulus may consist of any or all types of stimuli, including political, nationalistic, religious, physical, mental, emotional, etc. In the political sense, perception of and reaction to stimuli is often inculcated by - and for the benefit of - power holders.