PSYB51H3 Lecture Notes - Amacrine Cell, Receptive Field, Circadian Rhythm
Document Summary
Physics, optics: light: a wave, stream of photons, tiny particles that each consist of one quantum of energy, we are sensitive to 400-700 nanometers in wavelengths. Absorbed: energy is taken up by a medium and transformed to another form of energy. Transmitted: convey light from one place to another through a transparent medium. Reflected: energy that is redirected when it strikes a surface. Purkinje reflections, eye movements: when shining light on an eye, you typically see 4 reflections of light on that eye. (front/back of schlera, front/back of lense, eye tracking uses this. Diffracted: bent or having waves that are spread out, (e. g. , waves of sound or light as they encounter an obstacle, e. g. pass through a narrow apature) Refracted: energy is altered in its path as it passes into another medium, (eg: light passing through air, and then water) Light gets bent, therefore a pencil in water looks bent. Works with lenses too: most important sense.
