Answer:
Concepts
Explanation:
Concepts are part of the categories. It is a cognitive phenomenon. It is used to categorize the objects in the brain. There are different concepts for different objects. For instance, there are concepts about a bird in our brain. When you see a bird you recognized it through your concept about the bird in your cognition. With the help of a concept, a person can easily recognize the objects and named the object according to their concepts in mind. The concepts can be developed in two ways such as the classical model and the prototype. The classical model defines the trigonometry whereas the prototype will describe the general quality of an object such as features etc. According to the question, Ferris developed a concept related to the dog and whenever to see any dog, he recognized the dog with its characteristics.