As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner. The decrease in an infant's resposniveness is called .a. concentration. b. teratogens. c. habituation. d. stability. e. transference.

C - habituation.

Explanation:

As the exercise explains, when an infant is repeatedly faced or exposed to a visual stimulus, their interest wanes and look away or refuse looking sooner. This decrease in the infant's responsiveness is called habituation. So, in other words, this is a process in which a response decreases as it's exposure is longer or becomes more repeated. There are times where the response is to completely ignore it. To add another example, it could happen that we have or work with a noisy air conditioner. At first we might hear it all the time but, after some time, we would hear it less often, and then less frequently, and then we might even ignore it's complete existance.

Habituation

Explanation:

Habituation can be defined as the process in which what a person is been frequently expose to have decreased due to the fact that the person is already used to it meaning that the innate response to a continuous repeated stimulus been exposed to decrease.

Habituation is a learning process as in the case of the scenario above where the infants gain familiarity with repeated exposure to a visual stimulus in which their interest wanes and they look away sooner because they are used to been exposed frequently to the same visual stimulus to the extent of been familiar with it, which cause them to always looked away whenever they are been exposed to it due to repeated exposure.

Therefore the decrease in an infant's resposniveness is called HABITUATION