Suppose You Allow an Infant Several Minutes to "Study" a Complex

Suppose you allow an infant several minutes to "study" a complex pattern.Then you present a second face and assess whether the infant's heart rate changes when the second face appears.Which research method are you using?

A) preference
B) habituation
C) evoked potentials
D) high-amplitude sucking
Scenario 7.1
Suppose that you borrow your friend's laptop for a week to see whether you want to purchase one yourself.The computer makes a slight whirring sound just before it shuts down automatically due to low battery power.At first you didn't notice the sound and were surprised when the computer shut down.After a few days, however, you now reach for the power cord as soon as you hear the sound.Answer the following questions based upon your knowledge of classical conditioning.