premise: The human brain includes a thalamus, a structure for regulating sleep and temperature.
hypothesis: Human brain . Underneath the cerebral cortex , several important structures are located , including the thalamus , the epithalamus , the pineal gland , the hypothalamus , the pituitary gland , and the subthalamus ; the limbic structures , including the amygdala and the hippocampus ; the claustrum , the various nuclei of the basal ganglia ; the basal forebrain structures , and the three circumventricular organs .