PSYC 100 Lecture Notes - Lecture 9: Temporal Lobe, Prosopagnosia, Two-Streams Hypothesis

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jill L Atkinson

Document Summary

Light is a form of em energy, made up of particles known as photons. The colour we see depends on the wavelength or frequency of the light. The brightness depends on the intensity of the light. Two characteristics of light waves are wavelength and amplitude. Wavelength is the length of the waves, ranging from 400-700 nanometers, where 400 nm represents violet and 700 nm represents red. Amplitude is the height from the crest(top) to the trough(bottom) of a light wave. Higher amplitude waves are perceived as brighter, because they are more intense. When we move from bright to dark conditions, the eyes adjust gradually to become. When exposed to light, the pigments will change their chemical structure, eventually becoming white. This process is known as bleaching, and causes the pr to become less receptive to light. White reflects more light, so less light is absorbed by the photoreceptor.