PSY280H1 Chapter Notes - Chapter 2: Retinitis Pigmentosa, The Blind Spot, Spectral Sensitivity

• School: UTSG
• Department: Psychology
• Course: PSY280H1
• Professor: Kristie Dukewich

Document Summary

Starting at the beginning in other senses as well: looking at vision, though many of the processes also describe means of perception used, step 1: environmental stimulus, e. g. a tree. Step 2: light is reflected and transformed to create an image of the tree on the retina. Step 3: receptor processes: receptors transform light into electricity. Step 4: neural processing: signals travel in a network of neurons. Light and focusing: the ability to see a tree, or any other object, depends on information contained in light reflected from that object into the eye. Light: the stimuli for vision: electromagnetic spectrum: continuum of electromagnetic energy that extends from very- short-wavelength gamma rays to long-wavelength radio waves. For humans, visible light has wavelength between 400 and 700 nanometres: different wavelengths are associated with different colours. The eye the eye: cornea: the transparent focusing element of the eye that is the first structure through which light passes as it enters the eye.