Polish psychiatrist and psychologist Kazimierz Dabrowski (1902 – 1980) worked with creative adults and adolescents, and developed a theory of personality and emotional development that is often applied toward understanding the psychology of gifted and talented individuals.
One aspect of his Theory of Positive Disintegration is the concept of
unusual intensity and reactivity, as Lesley Sword explains in her
article Overexcitabilities in Gifted Children:
“Overexcitability is a sensitivity of the nervous system, an expanded
awareness of and a heightened capacity to respond to stimuli such as
noise, light, smell, touch etc.”
[Also see the Highly Sensitive site.]
Stephanie Tolan notes the original Polish word can be translated more
literally as “superstimulatabilities” and “involves not just
psychological factors but central nervous system sensitivity.”
Michael Jackson had a number of these characteristics.
Dabrowski Excitabilities - Michael Jackson