Biological Factors - internal genetic and/or physiologically based factors, Photoreceptors - the sensory receptors of the eye which receive light and convert into a form that can be sent to the brain, Rods - photoreceptors that allow someone to see in low levels of light, Cones  - photoreceptors that allow someone to see colour and fine details in well-lit conditions, Refractory Errors - defects in the eye causing it not to bend light as it is supposed to, resulting in reduced visual acuity, Myopia - short-sightedness due to the focal point of one or both eyes being located in front of, instead of on, the retina, Depth Cues - visual clues that allow someone to perceive the world in three dimensions and judge the distance and position of objects in their environment, Monocular depth cues - rely on visual information perceived by just one eyeMonocular depth cues, Binocular Depth Cues - rely on visual information from both eyes, Psychological Factors - internal factors pertaining to an individual’s mental processes, Visual Perception Principles - guiding rules that apply to incoming visual signals and determine how they are organised and interpreted, Gestalt Principles - the guiding rules of perception that allow us to organise and group separate visual stimuli into a meaningful whole, Visual Constancies - our ability to perceive visual objects as staying the same, even though they may appear to change or do change in our sensation, Perceptual Set - a predisposition to perceive certain features of sensory stimuli and ignore other features that are deemed irrelevant, Social Factors - external factors relating to an individual’s interactions with others and their external environment, including their relationships and community involvement, Culture - the customs, behaviours, and values of a particular group in society, Cultural Norms - a standard, value, or rule that outlines an appropriate behaviour or experience within a culture,

8C Visual Perception

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