CAS PS 101 Lecture Notes - Lecture 7: Optic Chiasm, Occipital Lobe, Dominant Wavelength

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 101
• Professor: Natalie Emmons

Document Summary

Sensation: our sense organs" detection and response to external stimulus energy and the transmission of those responses to the brain. Perception: the brain"s processing of detected signals, resulting in internal representations of the stimuli that form a conscious experience of the world. What we call a sensation is partly the result of how we perceive. Stimuli must be coded to be understood by the brain. Sensory coding: sensory receptors translate the physical properties of stimuli into patterns of neural impulses. Transduction: the phase by which sensory receptors produce neural impulses when they receive physical or chemical stimulation. The brain needs qualitative and quantitative information about a stimulus. Qualitative refers to the most basic qualities of a stimulus. Quantitative is the degree of the quality. Ex: how salty, how loud, how sweet. Different qualitative and quantitative information causes different responses. Green and red lights are coded differently.