11. Both the amygdala and the caudate nucleus have direct and indirect projections to the hippocampus. 12. Neurons in some parts of the caudate nucleus also show activity related to eye movements. 13. The putamen and caudate nucleus are also collectively called the corpus striatum after their striped appearance. 14. Those signals go to the caudate nucleus , which is involved in controlling the movement of the limbs. 15. The caudate nucleus is thought to assist in learning and memory of associations taught during operant conditioning. 16. The volume of white matter in the caudate nucleus has been linked with patients diagnosed with Schizophrenia. 17. Patients with BBGD have bilateral necrosis in the head of the caudate nucleus and in the putamen. 18. Due to its association with damage to the caudate, this movement demonstrates the inhibitory nature of the caudate nucleus . 19. The other three _ the caudate nucleus , the cingulate gyrus and the thalamus _ lie deep inside the brain. 20. For example, mGluR 4 is located only in the brain, in locations such as the thalamus, hypothalamus and caudate nucleus .