AbstractsPsychology

In 1932, Hess developed a technique whereby electrodes could be permanently implanted in the brains of intact, awake animals. The electrode mountings were small, caused no apparent discomfort, and allowed the animals complete freedom of movement. Although several other investigators independently devised their own techniques (Loucks, 1933; Chaffee and Light, 1934), subsequent work has shown Hess' method to be the most reliable (Delgado, l955a). [...]