PSYA01H3 Lecture Notes - Lecture 5: Sound Localization, Cochlea, Sound
Document Summary
What we see is based on a mixture of wavelengths that vary by hue (colours of the spectrum), intensity (brightness), and saturation (colourfulness or density). Sclera: the white, outer surface of the eye. Cornea: the clear layer that covers the front portion of the eye and also contributes to the eye"s ability to focus. Pupil: regulates the amount of light that enters by changing its size; it dilates to allow more light to enter and constricts to allow less light into the eye. Iris: a round muscle that adjusts the size of the pupil; also gives the eye their characteristic colour. Lens: a clear structure that focuses light onto the back of their eye. The retina: lines the inner surface of the eye and consists of specialized receptors that absorb light and send signals related to properties of light to the brain. The specialized receptors of the retina are called photoreceptors.
