Chapter 1 - I Chapter 1 Introduction to Perception The...

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9.9.5 Chapter 1 – Introduction to Perception I) The Importance of Perception : a. It both creates an experience of the environment and enables us to act within it i.The study of perception helps to satisfy our curiosity about something so important to our daily lives ii.The study of perception helps us to know what is abnormal and how to help fix disorders in perception II) The Perceptual Process : a. Sensation – process of receiving information from the senses (we only perceive 5% of what we take in) i.Proximal Senses – contact with environment (touch, taste) 1. Produces quick responses to immediate environmental threats ii.Distal Senses – sight, sound, smell 1. Helps one to pick up on danger from far away, before it’s too late iii.Think about information we don’t even have the senses to perceive (magnetism) b. Perception – conscious experience of sensations c. “Reality ” – what the brain tells us is real d. Environmental Stimulus – everything in our environment that we can potentially perceive i.Attended Stimulus – that in the environment that we are paying attention to e. Receptors – parts of the body that take in stimulus and transduce them into electrical signals that travel through the nervous system f. Perception – conscious sensory experience g. Recognition – our ability to place a perceived object into a category that gives it meaning i.Separate from perception, in that sometimes we can perceive things, but not recognize them as what they are h. Action – motor activities that are the outcome of perceiving our environment i.Actions are the key to survival and probably the reason for our senses i. Knowledge – the information a person brings to a situation that helps in the perception and recognition of stimuli as well as reactions to it j. Processing : i.Bottom-up Processing – information is received by receptors and goes to the brain ii.Top-down Processing – the effect that knowledge has on how we perceive things III) Studying the Perceptual Process : a. Levels of Analysis : i.Psychophysical Level of Analysis – how a person’s perception is related to the specific stimuli the their environment ii.Physiological Level of Analysis
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This note was uploaded on 04/17/2008 for the course PSC 3090 taught by Professor Strongin during the Fall '05 term at UC Davis.

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Chapter 1 - I Chapter 1 Introduction to Perception The...

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