Visual PerceptionAny given experience that an organism perceives must incorporate multiple sensory systems, which involve large numbers of organs, which are further composed of millions and millions of active cells. Perception is not a direct reflection of a stimulus, but a complex chaotic pattern depending on the simultaneous activity of neurons. This essay mainly deals with the neurons of the optical sensory system. The outer ridge of the brain, known as the cerebral cortex, begins the analysis of sensory messages. (1) Nevertheless, visual perception is perhaps more widespread than a single area of ​​the cerebral cortex and probably also in various subcortical structures and in a number of different systems. (2) One of the many ways the “process of perception” can begin is through vision. Vision depends on the interaction between light and the eye. Visual input is viewed through a lens that takes in different lights outward, refracts them, and bends them into points of light that focus on specific locations on the retina. This light-sensitive tissue that lines the back of the eye is made up of interconnected neurons. The three different types are receptor cells, bipolar cells, and ganglion cells. When photoreceptors are stimulated, they change the structure of the receptor photopigments and transduce light input into neuronal activity. (2) The electrical stimulus travels down the axon from the bipolar cells to the ganglion cells. Ganglion cells are activated by nerve impulses or action potentials and travel along the optic nerve. This activity spreads along the optic nerve to the geniculate nucleus which then travels to the midbrain. (2) Finally, the activity of triggering neurons moves to the cortex at the back of the brain, known as the stria...... middle of paper ...... classical methods are more reasonable than linear and simple procedures. Is it reasonable that everything we perceive depends exclusively on a specific set of procedures, rather than on the interaction of cells, organs and systems? The first process seems improbable, while the second turns out to be chaotic, massive and cooperative. It was alluded to in class that one does not need the formulated “image” or visual perception. However, I think this additional perplexity is a necessity. Visual perception of the “image” encourages our understanding of ourselves as well as our environment. Internet sources: http://sulcus.berkeley.edu/FLM/MS/Physio.Percept.htmlRatliff, Floyd. "Contour and Contrast", Scientific American, June 1972, pp. 91-101 Crutchfield, James. "Chaos", Scientific American, December 1986, p.. 46-57