"Santonin" Quotes from Famous Books
 ... overexcitable every stimulus is raised in the spectrum scale of colours. Thus, violet becomes red. An exactly opposite effect is observed when the retina is torpid.[35] Certain poisons are known to affect the quality of the colour-impression. Thus, santonin, when taken in any quantity, makes all colourless objects look yellow. Severe pathological disturbances are known to involve, in addition to hyperaesthesia and anaesthesia, what, has been called paraesthesia, that is to say, that condition in which the quality of sensation ...
— Illusions - A Psychological Study • James Sully |
