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Lecture

psyb57 3.docx

4 Pages
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Department
Psychology
Course Code
PSYB57H3
Professor
Michael Inzlicht

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Description
recognizing objects watch the structure of the visual system video Typoglycemia – reading/ recognizing whole words in which the letters are jumbled up Recognizing Objects why is object recognition important? Crucial for applying your knowledge, valuable part of our lives Crucial for learning Form Perception How do we perceive and recognize objects? Form perception: shape and size Object recognition: identification - thought of as we see something in the world as; Simple visual features -> object recognition -> knowledge about the world - idea of gestalt psychology; the whole is greater then it’s parts -> knowledge about something gives us more info about object then just its simple visual features that we see - eg. Nikercube; one set of visual features (Cube) A) and B) two possible interpretations - knowledge can change our interpretation eg. The two face or vase picture, the 3D stair case upside down and upward, skull picture and lady looking in the mirror - people resolve ambiguity in everyday situations eg. Fruit basket, looking at partcial parts but know still that they still exsist - your ability to interpret these scenes is governed by a few basic principles; how our mind creates objects -> similarity, proximity, good continuation, closure (triangle), simplicity (two layers of wood turn it into a single object being perceived) - 5 separate circles that look like it’s a spiral - take simpler to interpret this as one x and not two v’s - the idea is that until you have basic info feed in now you have knowledge about whats going on and you can apply that knowledge and it changes the way you see the image eg. The black boxes but the white makes a word LIFT, OPTICAL ILLUSION - why once you’ve seen something you can never go back? Because, as you begin to apply knowledge to it and you interpret it it’s now always available to you, so when you see it again you already seeing it due to the top down processes of the form perception chart - when talking about word perception, start with letters and words no edges but shadows gives us image that they’re a word - brain areas for basic visual features brain areas for large-scale form interactive; they go back and forth to be able to make these perceptions Object Recognition - now let’s turn from form perception, the process through which the basic shape and size of an object are seen - and discuss objection recognition, the process through which the object is identified - we can still recognize and object even when the information is incomplete Top- Down Influences on Object Recognition - Bottom-up (or data-driven) processing is stimulus-driven effects - Top- down (or concept driven) processing is knowledge or expectation driven effects - recognition begins with features – the small elements that result from the organized perception of form, but the features are not just part of that raw info they result for the more organized form of what your viewing - features  buildin
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