PSY280H1 Lecture 4: Color Perception
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PSY280H1 Full Course Notes
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A bit on agnosia (object blindness) and prosopagnosia. Lesion in neuropsychology: a region of damaged brain; to destroy a section of the brain. When the it cortex is lesioned, it leads to agnosias: failure to recognize objects in spite of the ability to see them. You can see then, you know they"re there, but you lost the ability to discriminate what they are. Suggests that we have specific/different regions in the brain that is dedicated to processing different stimuli - brain specialization. Solution: habituation procedure, measuring viewing time as an indication of something being interesting, novel, or surprising. Not a physical property but rather a psychophysical property. Most of the light we see is reflected. Typical light sources (e. g. , sun, lightbulb) emit a broad spectrum of wavelengths 400-700nm. In the electromagnetic spectrum, we perceive light of a wavelength of. Detection: wavelengths of light must be detected in the first place.
