In un articolo pubblicato qualche giorno fa, si asserisce che realmente se non si osserva l’ago durante un’iniezione si prova meno dolore. Come riporta l’articolo, siamo abituati durante le nostre vite ad associare l’ago a dolore, scatenando l’aumento “preparatorio” dello stress da dolore. Questo è stato scientificamente dimostrato, mostrando video ai pazienti e rilevando l’effettiva correlazione.
“Throughout our lives, we repeatedly experience that needles cause pain when pricking our skin, but situational expectations, like information given by the clinician prior to an injection, may also influence how viewing needle pricks affects pain,” says lead author Marion Höfle, a doctoral student in the research Multisensory Integration group led by Dr. Daniel Senkowski, at the Charité – Universitätsmedizin Berlin and the University Medical Center Hamburg-Eppendorf. […]
Participants reported that their pain was more intense and more unpleasant when they viewed a needle pricking a hand than when they saw a hand alone. In addition, observing needle pricks increased the unpleasantness of pain compared to viewing Q-tip touches. These findings were paralleled by enhanced activity of the autonomic nervous system, as measured by pupil dilation responses. This demonstrates that previous painful experiences with needles enhance unpleasantness of pain when viewing needle pricks.“