For 10 points, identify this psychologist, who in that experiment conditioned fear of a white rat in Little Albert.
He responded to symposium papers by Bartlett and Smith, Thommson, Pear, and Robinson with the paper, "Is thinking merely the action of language mechanisms?"  He used the hypothetical example of a "neurasthenic dog" in a paper that took Adolf Meyer's theory of mental illness to an extreme. However, he may be best known for an experiment that used blocks as a control and made a kid cry upon being forced to touch a Santa Claus mask.  For 10 points, identify this psychologist, who in that experiment conditioned fear of a white rat in Little Albert.
He responded to symposium papers by Bartlett and Smith, Thommson, Pear, and Robinson with the paper, "Is thinking merely the action of language mechanisms?"  
John B(roadus) {Watson}