The waiting room became "conditioned stimulus".
A conditioned stimulus refers to a substitute stimulus that triggers indistinguishable reaction in a life form from an unconditioned stimulus. Basically, a conditioned stimulus influences a living being to respond to something since it is related with something unique. Conditioned stimuli start as unbiased upgrades that don't unlawful a reaction until the point that molding has happened by means of rehashed incitement. In other words, the reaction is found out after some time. After repeated presentation, the neutral stimulus ends up matched with the unconditioned reaction and turns into a conditioned stimulus.