Essay - Perception Theory the Issue of Perception in Various Fields, Including...

Perception Theory

The issue of perception in various fields, including philosophy and psychology has been debated with vigor over the last fifty years. In fact, a l*****rge amount of experimental work has been completed regarding questions such as ***** object of *****, the relationship between perception and though, and the nature of perception representational.

In general it is believed that perception occurs without apparent effort. What ***** seen is imposed upon ***** brain and perception is the natural consequence. Theor*****ts have however argued that this is not the c*****e. There are a number of f*****ctors involved in ***** perception process. These factors influence the way that *****s are perceived. It has for example been argued that perception is a ***** of in*****mation transm*****sion ***** elaboration. The cognitivist paradigm holds ***** a flow of information in ***** mind, similar to computer software, influences the way that objects are perceived.

The lines of *****t related to visual perception can be divided into the top-down approach, which is concept-driven, and the bottom-up approach, which is direct, and also related to Gibson's view. The ***** approach assumes several information processes within ***** mind while ***** is taking place. Light intensities on the retina are for example assumed to be transformed on ***** retina in order to perceive the environment. Theories adher*****g ***** this principle are known as ***** constructivist *****. The assumption inherent in the constructivist approach is that ***** events intervene between stimulation of the perception organs ***** experience. Inferential processes play a role in forming the internal hypotheses, expectations and knowledge inherent in the final experience related to ***** vision process. Furthermore ***** ***** such as motivation and emotion are important ***** the outcome of the process.

There are many shortcomings to this approach. Contrary to ***** prediction that perception is likely ***** be in error fairly often, studies have shown it to ***** accurate.

***** ***** un***** stimuli have ***** used in experiments and demonstrations, rendering these invalid. It appears that the more contemporary approaches to visual ***** may therefore offer ***** in terms of validity.

***** order to consider the *****ory of perception then, ***** ecological approach and Marr's computational theory are discussed below. The computational theory appears to oppose the environmental theory ***** its paradigm ***** the mind mediates all that is perceived. ***** is ***** ***** ***** influenced by processes in the mind in order to give a message ***** perception to ***** brain. This is comp*****d with Gibson's direct approach to v*****ion.

J.J. Gibson and the Ecological Approach to Vision

Gibson studied *****der vision philosophers such ***** Koffka, while also being influenced by Lewin and Piaget to arrive at his ***** view. He is popularly believed ***** have coined the term "affordence," and is the founder of the concept ***** Ecological Perception. The ecological approach suggests a more direct theory.

According to this *****, there is no medi*****tion from the mind between the object of perception and ***** perception event itself. ***** function of perception is thus