Keywords
Efecto placebo
Neurobiología
Hormonas
Dolor Placebos
Placebo effect
Neurobiology
Hormones
Pain
How to Cite
Abstract
In this article several theories and concepts related to the placebo, typology and clinical implications will be presented. The placebo is an inert substance lacking therapeutic action that generates a neurobiological effect positive to the health when administered in a patient. If the effect is unfavorable, it is called nocebo effect. The neurobiological changes, psychological theories of conditioning and expectations explain the way placebo works. There are two groups: tangible placebos (pills, injections) and intangible placebos (words, sermons, doctor-patient relationship). The placebo is a medical tool potentially beneficial for patient health if it is used properly, generating positive expectations and desire for improvement.
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