PSYB57H3 Chapter Notes - Chapter 7: Feature Integration Theory, Parahippocampal Gyrus, Visual Search
Document Summary
Attention: very large set of selective processes in the brain. Since we handle all inputs at once, the nervous system has created special mechanisms that are able to restrict processing to a subset of things/ideas/moments/ in time. There are 5 different types of attention that are not mutually exclusive: external vs internal attention. External attention is the attention to stimuli in the world. Internal attention is our ability to select one process over the other: covert vs overt attention. Overt attention is directing a sense organ on the stimulus- for example fixating the eyes on a single word. Reaction time: a measure of the time from the onset of a stimulus to the response. Cue: like a hint or stimulus that indicates where something will be. A cue decreases reaction time because you are paying attention and know exactly where to look. Stimulus onset asynchrony: the time between the onset of one stimulus and the onset of another.
