Visual Perception

The topic of this assignment is to evaluate the evidences of visual perception involves bottom-up and top-down processing, people receive information from the environment with visual perception, they have ability to receive information through the sense organ – eyes then input and transmit the information to the brain to get the end product of visual information, The assignment was sequentially described the view and evidences of bottom-up processing by Gibson and top-down processing, the explanation of the studies which related to both bottom-up and top-down processing occurs in visual perception such as Milner and Goodale’ study and visual masking; At last, a conclusion of the supporting information based on the relevant evidences.

Visual

Ambient optic array related to a series of angles formed by light reflected from the surfaces then into the eyes, people relied on changing their position to collect unambiguous information from the object, the optic array will be changed at the same time. He thought the around environment provided enough unambiguous and invariant information enable to perceive features such as shape, size and distance to make sense of the world in a direct way without perceptual processing. The information was formed by texture gradient, optic flow patterns and

It indicated perception required combination of high-level descriptions which mean when the target presented rapidly, people tend to make a high-level perceptual hypothesis(top-down processing) to replace a low-level description(bottom-up processing) since the perceptual hypothesis against the current description. Also, Hupe et al. (1998) assumed two different regions of brain was sending signal to each other, they were interactive, which called re-entrant pathways, he extended the inference to perceptual hypothesis would be comparing with low-level description, there was a similarity of Enns and Di Lollo and