When the mind affects the body, or the body affects the mind. How external events effect the internal mind and internal events affect the external body.
A blush, sexual arousal, physical pain, hypnosis.
"Self-hypnotic mentabolism, removed the pain."
"Mentabolism, mind over matter, gave me the bodily control to win the game."
"Mentabolism, Pavlovian at work"
by which a living human mind takes up and converts
into its own proper substances
the nutritive inputs available to it,
or by which it transforms its components
into other substances, forms, or states
which are fitted for some special purpose.