Answer:
stimulus generalization
Explanation:
Stimulus generalization is the process that occurs when our conditioned reaction to one stimulus is similar to the reaction that revokes other, sometimes identical, stimulus.
In this example, we see that Sheeba is reacting to the sound of the vacuum cleaner, and she started connecting the noise of the vacuum to the noise of the mixer. Therefore, they are generalized stimuli, put in the same category in her consciousness, and awaking the same barking and attacking reaction.
