The reaction time studies conducted during the first few years of Wundt’s laboratory constitute the first historical example of a coherent research p… - Kurt Danziger

Here we are more likely to come across fields that are structured in an agonistic manner, fields which are characterized by deep divisions between alternative schools of thought rather than by the achievement of a general working consensus.

The severe restrictions which Wundt placed on introspection also manifest themselves in the types of judgment that his experimental subjects were required to make. In accordance with the precept that internal perception can only become observation insofar as it is linked to controllable external stimuli, the introspective reports from his laboratory are very largely limited to judgments of size, intensity, and duration of physical stimuli, supplemented at times by judgments of their simultaneity and succession.

The basis for Wundt’s initial discussion of the problem of introspection is provided by his insistence on the distinction between “self-observation” (Selbstbeobachtung) and “internal perception” (innere Warhnemung).