Answer:
Some sodium channels have been inactivated and cannot be reopened immediately.
Explanation: A stimuli is a term used to describe any sensation on a living organism such as plants or animals which is likely to create a form of response or responses by that living organism.
Sodium channels are specifically connected with stimuli transfer, once the intervals between stimuli decrease it will affect the response provided as the sodium channels may not be able to reopen immediately in order to manage the next stimuli.
The answer is Imaginary audience. The made-up audience refers to a state where an individual imagines and believes that masses of people are aggressively listening to or observing him or her. Though this state is frequently shown in young adolescence, people of any age may harbor a fantasy of an imaginary audience.
The answer is John Dewey who's an American educator and psychologist who was influential in changing education and social reform in United States. He was considered as one of the founders of functional psychology and the philosophy of pragmatism.