PSY100H1 Lecture Notes - Lecture 2: Detection Theory, Trichromacy, Parallax
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PSY100H1 Full Course Notes
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Whether a stimulus is perceived depends on both the sensory experience and. Signal detection theory the judgement made by the subject. Place: high frequency sounds stimulates hair cells close to ossicles. Low frequency sounds stimulates hair cells close to cochlea. Frequency: rate at which the ossicles fire into the cochlea. Photoreceptors---- neural signal the retina) signal to the brain. Rods: are in the periphery of the retina - sensitive to low light levels. Cones: sensitive to color in the centre of the fovea 9central region of. Ganglion neurons: gather information from rods and cones and send. Mixing of colors is psychological: interaction between light wavelengths and cones (different cones responsive to different wavelengths) Color perception is also influenced by opposing pairs of ganglion cells. Top-down organization of our world: the brain makes decisions about sensory input that shapes our perceptions. States that every stimulus is perceived in its most simple form.
