Which of the following is not one of the aspects of development studied by psychologists?

The functions of some peripheral factors in the control of eating can be demonstrated by the sham feeding preparation. But which of the following is NOT true? In the sham feeding preparation:

Drinking water to extinguish thirst is:

A form of learning best known in birds such as geese, ducks and chickens:

If a neuron will not fire regardless of the amount of stimulation, it is most likely ________?

Not among stimulus cues that can aid perception of depth is ________?