Intro
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Sensation is how our senses detect physical stimuli from the environment and transmit this information to the brain as neural signals. Perception is the process by which our brain organizes and interprets these sensations to form meaningful experiences, influenced by top-down processing such as past experiences and expectations. Together, sensation and perception determine how we experience the world around us through a series of filters rather than directly.
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Intro
- 1. Sensation and Perception Sensation: your window to the world Perception: interpreting what comes in your window.
- 2. The Basics • We do not actually experience the world directly, but instead we experience it through a series of “filters” we call senses. • The study of these sense and their effect on our behavior is called sensory psychology.
- 3. SENSATION: how we detect physical energy from the environment and encode it as neural energy. Sensation involves transducers-specialized receptor cells. Transduction – converting stimuli into neural impulses
- 4. Perception: how we select, organize, and interpret sensations. An active process that imposes some organization on the meaningless sensations.
- 5. Perception: Top-Down Processing-analysis based on experience and expectation (starts with the brain) Sensation: Bottom-up Processing-analysis that starts with the senses
- 6. Perception Our brains process information and form schemas so that different patterns of information seem distorted.
- 7. Sensation and Perception • Perception is essentially an interpretation and elaboration of sensation. Therefore, sensation refers to the initial steps in the processing of a stimulus. These pictures look fairly similar