PSYC 101 Lecture 3: 13 February
Document Summary
Sensation- detecting, converting, transmitting raw sensory info from the external and internal environments to the brain (sense organs-eyes, nose, etc. ) Perception- selecting, organizing, interpreting sensory information into meaningful objects and events (perception is how we process sensation) Bottom-up processing-perceptual analysis, begins at the bottom with raw sensory data being sent up to the brain for higher-level analysis. Data driven processing that moves from the parts -> the whole. Top-down processing perceptual analysis that starts at the top with higher-level cognitive processes (expectations and knowledge) and then works down. Conceptually driven processing that moves from the whole -> the parts. Based on our expectations, previous experiences, cultural background. Transduction-sensory receptors convert stimuli into neural impulses to be sent to the brain. Coding-neural impulses travel by different routes to different parts of the brain. Allows us to detect various physical stimuli as distinct sensations. Helps us determine sensations (ie sound vs smell?)
