
Keywords: پاسخ بی قید و شرط; CS; conditioned stimulus; UCS; unconditioned stimulus; CSÂ +; CS that predicts the UCS; CSÂ â; CS that predicts the omission of the UCS; CSÂ +Â UCS; UCS that follows the CSÂ +; CR; conditioned response; UCR; unconditioned response; SCR; skin conductance