Dr. James J. Asher is the key developer of Total Physical Response, and a professor of psychology at San Jose State University. TPR, or Total Physical Response, is used to aid learning second languages. When learning English, language is internalized through a process of code-breaking similar to first language development, and that teachers should allow for a long period of listening and developing comprehension prior to speech production. Students respond to commands that require physical movement. TPR is primarily utilized for teaching English as a second language, but can be implemented for other languages as well.