Sensory, Attentional And Perceptual Processes — Psychology STD 11 Humanities — Question

• Processing approaches can be divided into two categories.
• For describing it we can take the example of dog. Do we identify a dog because we have first recognized its furry coat, its four legs, its eyes, ears and so on, or do we recognize these different parts because we have first identified a dog?
• The idea of recognition of the whole is known as 'bottom up processing'.
• The notion that recognition process begins from the whole, which leads to identification of its various components is known as top-down processing.

1. The bottom-up approach lays emphasis on the features of stimuli in perception, and considers perception as a process of mental construction.
2. The top-down approach lays emphasis on the perceiver and considers perception as a process of recognition or identification of stimuli.

Studies shows that in perception both the process interact with each other to provide with each other to provide us with an understanding of the world.