Placebo Effect Definition

According to Wolman, Dictionary of behavioral science, placebo effect definition is:

A placebo is a substance that has no medical effect, but leads to the patient’s condition improvement because of his belief that the substance was effective. A substance that has no medical effect, and absorbed by the control group in experiment, while the experimental group receive active ingredient. This eliminates the impact of the act of substance absorption. (experimentally)

The word “placebo” comes from the Latin word “placer”, which means “I will pleasure.” In 19th century “placebo” gets the meaning of the drug, more so with the intent to satisfy the patient, but to heal him.

Today’s doctors do the same when they give an antibiotic for some viral infections, so the patient would not have had the feeling that the doctor did nothing.

“Model expectations”

Studies show that expectations strongly influence how people react to taking a placebo, chemically active drug or treatment.

Psychological theory explains how our thoughts, beliefs and positive thoughts can have an effect on improving health status. Sensory experience and thoughts of people have an impact on neurochemical reaction that leads to other changes in the biochemical system (response to hormonal and immune system).

A new scientific discipline psychoneuroimmunology (PNI) studies the impact of various psychological states and behavior changes in the immune response and can provide many answers about the mechanism of action of the placebo effect. PNI is the study of two-way communication between the nervous, endocrine and immune systems. The same mechanism of many psychosomatic diseases due to negative attitudes and behaviors can be reversed with positive suggestions as a result of the placebo effect.

Thus, we see how our thinking and mental life have an effect on neuro-immune biochemical changes, which affect the whole physical body and can lead to organic changes. This leads to the disease, but also in the opposite direction and healing. PNI provides answers to a placebo effect, but also many other positive results in healing that are the result of alternative therapies, because there are no clear boundaries between them.

Negative expectations lead to so-called Nocebo effect. or deterioration. It is known that some patients in the experiment of the placebo group got medicamentous rash, or an allergic reaction, which was observed at the same time as a side effect in people who have really got biochemically active substances (Dodes). 80% of patients which instead of emetic (substance that causes vomiting) received fresh water, reacted by vomiting.

There are even reports of addiction for some people on placebo. The expectations of the therapist and his faith in the efficacy of treatment, and physiological response to reducing the anxiety of the patient are important elements of the placebo effect.

“The model of conditional reflex”

It is a learned response to medical intervention. Previous experience improvement from taking the pill, act as a conditioned stimulus (compare with the stimulus of a bell in Pavlov’s famous experiment). This means that every next contact with the doctor or taking a new pill triggers a reflex process improvement that is the placebo effect.

Experiment: The dog was with the ring tone receiving injections of acetylcholine, which has the effect of lowering blood pressure. Successive repetition of the sound and injection of acetylcholine has created a conditioned response: the dog lowered blood pressure when he heard the bell, even when did not receive injections. Interesting is the further course of the experiment. To a dog, who developed the conditional reflex to the sound of bells was given an injection of adrenalin, which has a function to raise the pressure. The outcome was unexpected. With the sound of bells, a dog’s pressure fell, instead of raising the adrenaline, since it was the primary function of adrenaline injection. So the placebo effect was stronger than the pharmacological action of adrenaline injection. New neuron connection were created that led to different internal neurochemicals response, which has prevailed over substance which was initiated externally.

“Opiate model»

In the placebo stimulus endorphins are released in order to reduce pain. Donald Price and his colleagues showed that the effects of placebo-induced analgesia (insensitivity to pain), can disappear if given naloxsone, antagonist of opiates (endorphins).

Define Placebo Effect

“Everyone knows what is placebo, until the moment they have to answer.” (Shapiro, Brodi)

The term placebo is used in science, often as a final argument to persuade or deny whether an alternative treatment works or not, while no one knows how to define placebo effect. It is often said that one effect is only a result of auto-suggestions and on this the discussion ends, and in fact no one asks about the placebo effect psychology.

We should be aware that there is no healing without placebo. The placebo effect is present in every process of healing, whether it is driven by a warm conversation, acupuncture, homeopathic medicine, allopathic medicine or surgical treatment.

Therefore when someone comes for help, starts taking the medicine or accepts treatment, the patient carries some degree of positive beliefs that the problem will be cured. The belief, expectation drives the placebo effect, or how we say often “self-healing”. It is very important in treating avoidant personality (avoidant personality disorder test ). It is the cheapest remedy out-there, and it is in our mind. Big positive expectation make placebo effect bigger, therefore a patient increases chances of self healing. Placebo effect is a medicine that works!

http://feelgoodtime. net/placebo-effect-placebo-effect-definition/ http://feelgoodtime. net/wp-content/uploads/2011/10/placebo-effect. jpeg http://feelgoodtime. net/wp-content/uploads/2011/10/placebo-effect. jpeg 2015-11-08T19:38:42+00:00 Jonathan Samson Mental Health placebo, placebo-effect-definition, vitamine-b17 Placebo Effect, Placebo Effect Definition The placebo effect is one of the most exploited concepts in medicine. Many use it for various purposes, and each defines it differently. So, many people handle the black box of placebo effect concept while at the same time do not know its full content. Jonathan Samson Jonathan Samson jonathansamsone@gmail. com Contributor One of the owners of FeelGoodTime. net community, author and a proud father. MD, PhD, cardiologist and psychotherapist. FeelGoodTime