Dennis and Gingerelli separately modified this experiment by introducing new objects to achieve the same result. Performed with grad student Harvey Carr, its results confirmed its main experimenter's belief in the primacy of kinaesthetic feedback. This experiment supported its psychologist's "chain of responses" hypothesis, which argued that only an initial stimulus was needed to produce responses, a result contrary to Thorndike's Law of Effect. Published in a paper entitled "The Orientation of the White Rat," it was performed in a straight-alley apparatus whose length was shortened by a half after rats were trained to run its initial length. For 10 points, name this experiment by JB Watson named for the sound rats made when colliding with 
Dennis and Gingerelli separately modified this experiment by introducing new objects to achieve the same result. Performed with grad student Harvey Carr, its results confirmed its main experimenter's belief in the primacy of kinaesthetic feedback. This experiment supported its psychologist's "chain of responses" hypothesis, which argued that only an initial stimulus was needed to produce responses, a result contrary to Thorndike's Law of Effect. Published in a paper entitled "The Orientation of the White Rat," it was performed in a straight-alley apparatus whose length was shortened by a half after rats were trained to run its initial length. For 10 points, name this experiment by JB Watson named for the sound rats made when colliding with the walls of the shortened maze.
Dennis and Gingerelli separately modified this experiment by introducing new objects to achieve the same result.
kerplunk experiment [prompt on anything having to do with Watson's rats]