The third model regards mind as an information processing system. This — Thaddus E. Weckowicz

"The second model is the functionalist model of mind. The organism through acquired S-R responses or through operations on the environmental manages to stay alive and adjust itself to the environment. The Thorndykian and Skinnerian approaches to learning and the adaptive model of the psychoanalytical theory come under this heading."

"There are several definitions of Depersonalization, which are really descriptions of the symptom. The one offered by Schilder (1914) is perhaps most clear and precise. It is given here in a free English translation: The individual feels totally different from his previous being; he does not recognise himself as a person. His actions seem automatic, he behaves as if he were an observer of his own actions. The outside world appears to him strange and new and it has lost the character if reality. The self does not behave any longer in its former way." From this definition it can be seen that the core of the symptom is a change in appearance, a "strangeness" of the object of experience: either the self or the external world or both. There is also a disturbance in the subject-object relationship producing perplexity and interfering with the smooth flow of conscious experience. These aspects of depersonalization are stressed in one form or another by all the investigators of this phenomenon."

"Von Bertalanffys Ph.D. thesis was on the philosophy of , an epigon of the Philosophy of Nature movement, who was also the founder on psychophysics and experimental esthetics, Fechner, like all the other Philosophers of Nature rejected the reductionist-atomist view of nature. He believed that the universe was a living system existing at a higher level than man. It was governed in addition to the law of causality by the laws of stability and of repetition. These three principles causality, stability and repetition governed biological and psychological phenomena."

"Depersonalization is a concept difficult to delineate. It can be regarded as a symptom or as a loosely associated group of symptoms that occurs in psychiatric patients. It can be induced experimentally and also occurs spontaneously in normal subjects. A major obstacle to clearer definition of this concept lies in the fact that it refers to exceedingly private events in the individuals experience. These prove very difficult to describe by a language geared to the description of public (consensually validated) events or private events, such as pain, that occur usually in clearly defined social settings. When it comes to describing and conveying something as ineffable as depersonalization or derealization, the subject resorts to metaphors, "as if" expressions, and figures of speech. The result is semantic confusion. Different authors mean different things when they use the term depersonalization. The concept of depersonalization merges by imperceptible degrees with the concept derealization, the concept of altered body image and self, deja vu, jamais vu, altered time and space perception and so on - the whole gamut of phenomenological description of the experiences of mental patients. Therefore, it is rather difficult to evaluate and to review objectively the psychiatric literature on the phenomena of depersonalization."

"Grossly oversimplifying, the following models of mind can be discerned in the welter of contemporary psychological theorizing. The first model of the mind is mind as an energy system. This is represented by early psychoanalytical theory, particularly by its dynamic and economic versions. It has also represented by ecologists (Tinbergen, 1951) and by drive reduction theorists. In this model, the stress is on the concept of motivation, conceived as drive. Common to the theories that regard mind as an energy system are the ideas of homeostasis and closed system. The metaphor of energy is often used by motivation theorists who view drives, instincts, and needs as types of forces."

"There are two kinds of thinkers, scholars and scientists. The first are the trail blazers who propose new revolutionary ideas, point to new directions for scientific and intellectual developments, create new paradigms of science and scholarship, but leave the details to others. The second are those who follow the new trail, carry out careful experimentation and research within the established paradigm, and work out the precise formulations of theories in a particular domain of knowledge."