<u>Answer</u>:
The distinction between the sensation and perception allows the researchers to distinguish between the information processed by the receptors versus the information processed in the cortex.
<u>Explanation</u>:
The sensation is a process by which the sensory receptors take up the signals or stimuli from its surroundings and send it to the brain through nerves. Whereas, in the process of perception the brain organizes, combines and makes patterns from the given stimuli and gives the response to the particular stimuli accordingly.
Both sensation and perception are connected to each other hence if one doesn’t work then the other automatically stops working.
Flat face I believe is your answer
They observe it, run tests on many different things, and do expirments
By takeing a big nice juscy buns and banging it sooo hard