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chapter3 - Cognitive Psychology Fourth Edition Robert J...

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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Chapter 3: Attention and Consciousness
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness What is it that abandons you every night when you fall asleep and reappears the next morning when you wake up? However, dreaming and waking can be remarkably alike Visual objects and language are understandable, highly coherent and can be mistaken for real life
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Reticular activating system The reticular activating system - the only localized brain lesion that results in loss of consciousness Maintains state of consciousness
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness Associated with neural activity distributed across different neural groups in different areas of the brain Not localized to one particular area Groups of neurons must interact rapidly and reciprocally If interactions are blocked = consciousness disappears Groups of neurons must be different from each other and have the ability to change If neurons fire the same way, reducing diversity = consciousness disappears
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness The processes whereby our brains continue to learn about a changing world in a stable fashion throughout life are proposed to lead to conscious experiences This capacity lies at the heart of our ability to function as intelligent beings
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness The relationship between selective attention and consciousness is an intimate one When we attend to an object, we become conscious of its attributes; when we shift attention away, the object fades from consciousness This has prompted many to posit that these two processes are inextricably interwoven, if not identical
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness However, events or objects can be attended to without being consciously perceived Searching this display for a vertical rectangle requires attention to successive locations because the nontargets include both vertical (ellipses) and rectangles (horizontal).
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness As well, an event or object can be consciously perceived in the near absence of top-down attentional processing When a photograph was briefly flashed unexpectedly onto a screen, subjects could accurately report a summary of the photograph. In a mere 30 ms presentation time, the gist of a scene can be apprehended. This is insufficient time for top-down attention to play much of a role.
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Cognitive Psychology, Fourth Edition, Robert J. Sternberg Chapter 3 Consciousness Consciousness is surmised to have different functions from attention. These include
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