PSYC 2003 Lecture Notes - Lecture 1: Functional Magnetic Resonance Imaging, Positron Emission Tomography, Detection Theory
8 Feb 2017
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Document Summary
Studying the brain: transcraial magnectic stimulation (tms, magnets can be used to disrupt the electrical impulses in the brain, by temporarily turning off parts of the brainier researchers can mimic different brain injuries. Sensation and perception: sensation: simples awareness due to stimulating of sense organ. Viii. attention: cognitive resources, mental effort, or concentration devoted to a cognitive process. B: attention is central to many aspects of cognition. If you focus on one thing, you lose focus on other things: preceptiion, memory, language, and problem solving. Inattentional blindness: a stimulus is not perceived even when the person is looking directly at it: change blindness: failure to detect that an object has moved or disappeared and is the opposite of change detection. Bottom up processing: processing based on incoming stimuli from the environment: also called data-based processing. Top-down processing: processing based on the perceivers" previous knowledge: also called knowledge-based processing.
