module 17
Giulio's bag of marbles is twice as heavy as Jim's bag. If it takes 5 extra marbles to make Jim's bag feel heavier, it will take 10 extra marbles to make Giulio's bag feel heavier. This BEST illustrates:
Weber's law
Sensory adaptation helps people:
concentrate on more important things
A snack manufacturer finds that it must increase the salt content of its chips by 8 percent in order for a sample of consumers to notice that the chips are saltier than they were before. This example BEST illustrates the concept of a(n) _____ threshold.
difference
In an experiment described in the textbook, preschool children preferred the taste of french fries served in a McDonald's bag to the taste of identical fries served in a plain white bag. The type of bag is a(n) _____ variable in this study.
independent
Two Transportation Security Administration officers are scanning bags at the airport. One of the officers lets a bag go through, but the other officer yells, "Wait, didn't you see that?" Why one officer saw a weapon and the other did not is BEST explained by:
signal detection theory
Dennis, a nurse, notes that some parents of asthmatic children respond to very small changes in their children's breathing and seek care accordingly. However, other parents do not notice the same small changes. This type of difference in reaction to stimuli is BEST explained by:
the signal detection theory
If people stare at an object, why doesn't it disappear? Please choose the correct answer from the following choices, and then select the submit answer button.
their nerve cells are constantly firing
Perceptual analysis that is guided by higher-level mental processes such as expectations is called _____ processing.
top-down processing
Janice opens her eyes in the morning to see a photograph by her bedside. At that point, her eyes are receiving light energy, which they change into neural messages for the brain to process. This conversion of one form of energy into another is called:
transduction
Samantha opens her eyes in the morning to see flowers by her bedside. At that point, her eyes are receiving light energy, which they change into neural messages for the brain to process. This conversion of one form of energy into another is called
transduction
The local fire department sounds an alarm. The conversion of the siren's sound waves into neural impulses exemplifies the process of:
transduction