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Western University
Psychology 2115A/B

Psych 2215 Textbook Notes Chapter 1: Aspects of the Perceptual Process The study of sensation, or sensory processes, is concerned with the first contact between the organism and the environment (ie. light being registered by the eye) - "How bright does the target appear to be?" The study of perception is interested in our conscious experience of objects and object relationships. - "Can you identify that object?" - "Where is it? How far away is it? How large is it?" Those who study perception are interested in how we form a conscious representation of the outside environment and in the accuracy of that representation. Cognition Divided into 2 broad divisions; cognition, meaning how we know the world, and affect, which was meant to encompass feelings and emotions. Cognition tends to be somewhere between the areas that were traditionally called perception and learning, and it incorporates elements of both. Information Processing Term used to describe the general process of that leads to the identification and interpretation of stimuli. Includes a registration or sensory phase, and interception or perceptual phase, and a memoric or cognitive phase Integrates sensation, perception and cognition within a common framework Information processing relies on a levels-of-processing analysis in which each stage of sensory processing, from the first registration of the stimulus on the receptor to the final conscious representation entered into memory, is systematically analyzed. Theories of Perception Biological reductionism is a theoretical approach to perceptual problems based on the presumption that for any given aspect of the observers sensation there is a corresponding physiological event. The main goal of the perceptual researcher is to isolate these underlying physiological mechanisms (ie. the search for specific neural pathways, or processes that correspond to specific sensory experiences). Modularity of Perception views the mind as a set of distinct units or modules, each of which
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