Western scientists first became involved in hypnosis around 1770, when Franz Mesmer (1734–1815), a physician from Austria, started investigating an effect he called "animal magnetism" or "mesmerism" (the latter name still remaining popular today).
Clinical hypnosis is an altered state of awareness, perception or consciousness that is used, by licensed and trained doctors or masters prepared individuals, for treating a psychological or physical problem. It is a highly relaxed state. Hypnosis is a state of inner absorption, concentration and focused attention.
Hypnosis is thought to work by altering our state of consciousness in such a way that the analytical left-hand side of the brain is turned off, while the non-analytical right-hand side is made more alert. The conscious control of the mind is inhibited, and the subconscious mind awoken.
Ancient Ethics in Hypnotherapy & Psychotherapy
The Hyppocratic Oath is an oath traditionally taken by doctors, and believed to have been written in the 4th century BC by Hippocrates, widely regarded as the father of Western medicine. This is a traditional translation of the oath,
I swear by Apollo the Physician and Asclepius and Hygieia and Panaceia and all the gods, and goddesses, making them my witnesses, that I will fulfill according to my ability and judgment this oath and this covenant:
To hold him who has taught me this art as equal to my parents and to live my life in partnership with him, and if he is in need of money to give him a share of mine, and to regard his offspring as equal to my brothers in male lineage and to teach them this art –if they desire to learn it– without fee and covenant; to give a share of precepts and oral instruction and all the other learning to my sons and to the sons of him who has instructed me and to pupils who have signed the covenant and have taken the oath according to medical law, but to no one else.
I will apply dietic measures for the benefit of the sick according to my ability and judgment; I will keep them from harm and injustice.
I will neither give a deadly drug to anybody if asked for it, nor will I make a suggestion to this effect. Similarly I will not give to a woman an abortive remedy. In purity and holiness I will guard my life and my art.
I will not use the knife, not even on sufferers from stone, but will withdraw in favor of such men as are engaged in this work.
Whatever houses I may visit, I will come for the benefit of the sick, remaining free of all intentional injustice, of all mischief and in particular of sexual relations with both female and male persons, be they free or slaves.
What I may see or hear in the course of treatment or even outside of the treatment in regard to the life of men, which on no account one must spread abroad, I will keep myself holding such things shameful to be spoken about.
If I fulfill this oath and do not violate it, may it be granted to me to enjoy life and art, being honored with fame among all men for all time to come; if I transgress it and swear falsely, may the opposite of all this be my lot.
The oath has frequently been modified and modernized throughout recent centuries.