LBJ: The Early Years An offer of the Vice Presidency by John Kennedy is at first rejected by Johnson because of the advice of Sam Rayburn. The next day, Rayburn tells Johnson that he changed his mind, and LBJ accepts the offer, despite Robert Kennedy's attempt at squashing the idea. After JFK is elected in 1960, Johnson soon regrets his decision, and he is made to fill the most benign of roles while the President and his brother shut him out of meetings. This position changes drastically when John Kennedy is shot in Dallas in 1963, and Lyndon Johnson becomes the new President of
Referred pain local pain (pain at the site of stimulation) is intensified the referred pain is intensified as well. Criticism of this model arises from its inability to explain why there is a delay between the onset of referred pain after local pain stimulation. Experimental evidence also shows that referred pain is often unidirectional. For example, stimulated local pain in the anterior tibial muscle causes referred pain in the ventral portion of the ankle; however referred pain moving in the opposite direction has not been shown experimentally. Lastly, the threshold for the local pain stimulation and the referred pain stimulation are different,