PS101 Lecture Notes - Lecture 4: Incus, Outer Ear, Middle Ear
Document Summary
About the demonstration: sensation gives us the visual cues, perception fills in the blanks. Absolute threshold: the minimum amount of sensory stimulation that can be detected 50% of the, the difference between not being able to perceive a stimulus and being able to just barely perceive it. The smallest amount of stimulation necessary for produce the (cid:498)just noticeable difference(cid:499) (cid:523)jnd(cid:524) in sensation that is detectable: the smallest increase or decrease in a physical stimulus that is required to time. Sensory adaptation: process of becoming less sensitive to an unchanging sensory stimulus over time. October, 20th, 2015: automatic process, allows us to shift attention. Vision: precursor light, we can(cid:495)t see any object unless light is reflected from it or given off by it. Vision: the eye: cornea, lens, retina, rods, cones, fovea, optic nerve. Vision colour: perceive small part of the electromagnetic (em) spectrum, light waves measured in nanometers (billionths of meter, from 700 nm to 400 nm.
