PSYC 101 Chapter Notes -Ganglion Cell Layer, Detection Theory, Optic Disc

• School: UBC
• Department: Psychology
• Course: PSYC 101
• Professor: Barbara Cox

Document Summary

Sense organs & sensory nerves evolved to provide us w/ useful info about the external world. How sensory system do so depends on specific modality of the info, on characteristics of the info, & the state of the brain at the time it receives the info. Sensory systems process info differently for different sources of info. Sensation- detection of elementary properties of a stimulus. Perception- detection of the more complex properties of a stimulus, including its location & nature. Animate & inanimate objects, their locations, their movements & their backgrounds. Involves learning seeing colour red is sensation but seeing a red apple is perception. Brain"s task is to analyze the info & reconstruct what has occurred. Transduction- process by which sense organs convert physical stimuli into changes in the activity of receptor cells of sensory organs. Receptor cells- specialized neurons that directly respond to a physical stimulus, such as light, vibrations.