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This view suggest that Action-Specific Energy that constantly accumulates, motivates Appetitive Behavior which is driving force of the animal to approach or contact a specific and distinctive event called a Sign Stimulus (Example:When an egg rolls-this is the sign stimulus- to one side of the nest, the goose reacts by stretching toward the egg and bending its neck, bringing its bill toward its breast. This action causes the bill to nudge the egg to the center of the nest and the goose will make adjustments of its bill depending on the direction of the rolling egg.)
What is Energy Model (Konrad Lorenz 1903-1989 & Nikolass Tinbergen 1907-1988)