noun. with regard to Pavlovian conditioning, a lessening in conditioning with one conditioned stimulant because of the existence of another conditioned stimulant. Generally a more powerful stimulant will overshadow a less-than-strong stimulant.
noun. with regard to Pavlovian conditioning, a lessening in conditioning with one conditioned stimulant because of the existence of another conditioned stimulant. Generally a more powerful stimulant will overshadow a less-than-strong stimulant.