Instructions to imagine sad scenes yield increased activity of the _______ muscle, whereas imagination of anger yield increased activity of the _______ muscle.

Question

Quizplus · Accepted Answer

The angular oris muscle is responsible for pulling the corners of the mouth up, which is associated with a smile or happy expression. Conversely, the corrugator muscle is responsible for pulling the eyebrows inward and downward, which is associated with a frown or sad expression. Therefore, imagining sad scenes would lead to increased activity of the corrugator muscle, while imagining anger would lead to increased activity of the angular oris muscle. Choices C and D are both combinations of muscles used for movement and would not be relevant in this context.

Instructions to Imagine Sad Scenes Yield Increased Activity of the _______