A likely biological basis of major depressive disorder is
A) reuptake pumps for serotonin in the presynaptic neuron membrane that do not function adequately.
B) absent reuptake pumps for serotonin in the presynaptic neuron membrane.
C) reuptake pumps for serotonin in the postsynaptic neuron membrane that do not function adequately.
D) reuptake pumps for serotonin in the postsynaptic neuron membrane that are overactive, depleting serotonin in the synapse.
E) reuptake pumps for dopamine in the presynaptic neuron membrane that do not function adequately.

Question

Quizplus · Accepted Answer

The inadequate function of reuptake pumps for serotonin in the presynaptic neuron membrane is a common biological basis of major depressive disorder. This leads to decreased levels of serotonin in the synaptic cleft, causing a decrease in mood regulation and potentially resulting in depression.

A Likely Biological Basis of Major Depressive Disorder Is