PSYA01H3 Chapter 4: psych chapter notes
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Bottom-up processing- occurs when we perceive individual bits of sensory information and use them to construct a more complex perception (ex listening to a song backwards and hearing messages that weren"t intentionally put there) Top-down processing- when our perceptions are influenced by our expectations or prior knowledge ex. Divided attention- paying more attention to more than one stimulus or task at the same time ex. Playing a video game and having a conversation or facebooking during a lecture. Selective attention- focusing on one particular event or task-- ex. Focused study, driving without distraction or anything where we are paying more attention to one part of the environment and ignoring all others. Inattentional blindness- failure to notice clearly visible events or objects because attention is directed elsewhere ex. Gorilla passing by in ball passing video https://www. youtube. com/watch?v=vjg698u2mvo. Iris is a round muscle that adjusts the size of the pupil. It serves important functions if a person"s brain is damaged.
