Philosophy 1020 Lecture Notes - Form Letter, Binocular Disparity, Gestalt Psychology

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Lecture 1: attention selecting and filtering sensations. Inattentional blindness: not noticing certain sensations because you attention is directed otherwise. Environmental and personal factors: intensity, the more intense the stimulus, the more likely you are to attend to it. Movement, we attend to moving objects more likely than steady objects. Repetitiveness, the more we hear/see things, the more we respond to them. You can only see one at a time, depending on which background you choose to focus on. The size of the retinal image changes, but we perceive it at a constant size. Pattern recognition: bottom-up processing: form letter, then word, then sentence etc, top-down processing: brought from expectations and perceptual sense. We are more influenced by this as we get older and mature. Note: sonic guide: a way for blind people to see with their ears . An object that is higher pitch is further away, and the louder the sound, the bigger it is.

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