PSYCH 3313 Chapter Notes - Chapter 6: Fusiform Face Area, Amblyopia, Decussation
3 Oct 2016
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Document Summary
About 50% of cerebral cortex responds to visual information. Electromagnetic radiation radiation emitted in the form of energy waves. Wavelength the distance between successive peaks of a wave; determines color in visible light. Amplitude the height of a wave; in vision, the source of the subjective experience of brightness (large amplitude = bright) Photons individual, invisible, very small particles that form waves of electromagnetic energy: the advantages of light as a stimulus. No substantial delay between an event and an organism"s ability to see it. Travels in fairly straight lines, minimizing the distortion of objects: the electromagnetic spectrum. Light that is visible to humans occupies a very small part of the electromagnetic spectrum (400 700 nm) Nanometers a unit of measurement equaling 10-9 m used to measure light wave frequency. Gamma rays, x rays, uv rays, infrared rays, microwaves and radio waves = human eye cannot detect.
