For Freud, much of our behavior is controlled by ______

Which of the following is true of neural impulses in a single neuron?

a. The neuron may fire during the absolute refractory period. b. The strength of a neural impulse increases as the strength of the incoming message gets stronger. c. The strength of a neural impulse decreases as the strength of the incoming message gets stronger. d. The strength of a neural impulse is the same each time the neuron fires.

Professor Beverly approaches questions about human behavior from a perspective that emphasizes bodily events and chemicals, such as hormones, associated with behavior. It is most likely that she accepts which of the following psychological approaches?

a) biopsychological b) learning c) cognitive d) sociocultural