HSCI 305 Chapter Notes - Chapter 4: Colin Cherry, Donald Broadbent, Cocktail Party

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 305
• Professor: Ruth Lavergne

Document Summary

All other messages are filtered out: the detector processes the information from the attended message to determine high level characteristics of the message, such as its meaning. A threshold is the smallest signal strength that can barely be detected. Thus, a world with low threshold might be detected even when it is presented softly or is obscured. Some tasks, especially easy, well practiced ones, have low perceptual loads; these low-load tasks use up only small amount of the persons processing capacity. They found that the observers were more likely to detect stop signs positioned at intersections than those positioned in the middle of a block, and that. 45% of the observers fixation"s occurred close to intersections: outcomes of attention, covert attention: shifting attention while keeping the eyes still because the attentional shift can"t be seen by observing the person. Tuned so that large areas respond best to vehicles and things related to vehicles.