Titchener's ideas on how the mind worked were heavily influenced by
Wundt's theory of
voluntarism and his ideas of
association and
apperception (the passive and active combinations of elements of consciousness respectively). Titchener attempted to classify the structures of the mind in the way a chemist breaks down chemicals into their component parts—water into hydrogen and oxygen, for example. Thus, for Titchener, just as hydrogen and oxygen were structures, so were sensations and thoughts. He conceived of hydrogen and oxygen as structures of a chemical compound, and sensations and thoughts as structures of the
mind. A sensation, according to Titchener, had four distinct properties: intensity, quality, duration, and extent. Each of these related to some corresponding quality of stimulus, although some stimuli were insufficient to provoke their relevant aspect of sensation. He further differentiated particular types of sensations: auditory sensation, for example, he divided into "tones" and "noises." Ideas and perceptions he considered to be formed from sensations; "ideational type" was related to the type of sensation on which an idea was based, e.g., sound or vision, a spoken conversation or words on a page. Titchener believed that if the basic components of the mind could be defined and categorised that the structure of mental processes and higher thinking could be determined. What each element of the mind is, how those elements interact with each other and why they interact in the ways that they do was the basis of reasoning that Titchener used in trying to find structure to the mind.
Introspection The main tool that Titchener used to try to determine the different components of
consciousness was
introspection. Unlike Wundt's method of introspection, Titchener had very strict guidelines for the reporting of an introspective analysis. The subject would be presented with an object, such as a pencil. The subject would then report the characteristics of that pencil (color, length, etc.). The subject would be instructed not to report the name of the object (pencil) because that did not describe the raw data of what the subject was experiencing. Titchener referred to this as stimulus error. In "Experimental Psychology: A Manual of Laboratory Practice", Titchener detailed the procedures of his introspective methods precisely. As the title suggests, the manual was meant to encompass all of experimental psychology despite its focus on introspection. To Titchener, there could be no valid psychological experiments outside of introspection, and he opened the section "Directions to Students" with the following definition: "A psychological experiment consists of an introspection or a series of introspections made under standard conditions." This manual of Titchener's provided students with in-depth outlines of procedure for experiments on optical illusions, Weber's Law, visual contrast, after-images, auditory and olfactory sensations, perception of space, ideas, and associations between ideas, as well as descriptions proper behaviour during experiments and general discussion of psychological concepts. Titchener wrote another instructive manual for students and two more for instructors in the field (Hothersall 2004, p. 142). The level of detail Titchener put into these manuals reflected his devotion to a scientific approach to psychology. He argued that all measurements were simply agreed-upon "conventions" and subscribed to the belief that psychological phenomena, too, could be systematically measured and studied. Titchener put great stock in the systematic work of
Gustav Fechner, whose psychophysics advanced the notion that it was indeed possible to measure mental phenomena (Titchener 1902, p. cviii- cix). The majority of experiments were to be performed by two trained researchers working together, one functioning as the "observer" (
O) and the other as the "experimenter" (
E). The experimenter would set up the experiment and record the introspection made by his partner. After the first run of any experiment, the researchers were to then switch roles and repeat the experiment. Titchener placed a great deal of emphasis on the importance of harmony and communication between the two memberships in these partnerships. Communication, in particular, was necessary, because illness or agitation on the part of the observer could affect the outcome of any given experiment. The structuralist method gradually faded away due to the advent of newer approaches such as the introspective approach.
Attention Edward B. Titchener formulated his seven fundamental laws of attention. Law number four, the law of prior entry, postulated that “the object of attention comes to consciousness more quickly than the objects which we are not attending to.” (Titchener, 1908, p. 251) The law of prior entry has received a lot of interest over the last century and much debate ensued about the veracity of this law. It is not until recently that research has generated robust evidence that attention operates at a perceptual level. Behavioral studies looking at the speed of perception of attended stimuli suggest that the law of prior entry holds true. Recent brain imaging studies have been able to confirm these findings by showing that attention can speed up perceptual brain activation. == Life and legacy ==