What types of conflict are in "The Tell-Tale Heart" and how are they resolved?

The main conflict is internal - the narrator vs. his own deteriorating mind. The fact that he does commit the murder, based on nothing but an adverse opinion of the man's eye, and that he then hears the beating of the heart coming through the floor creates the rising action and suspense. The conflict is resolved in the final scene, when the narrator confesses to his actions, and ends the horrific sound of the beating heart.