21. A 2013 study has suggested a link between Alzheimer's patients and the caudate nucleus. 22. The volume of white matter in the caudate nucleus has been linked with patients diagnosed with Schizophrenia. 23. The putamen and caudate both input information from the cerebral cortex, thalamus, and substantia nigra. 24. Patients with BBGD have bilateral necrosis in the head of the caudate nucleus and in the putamen. 25. The caudate nucleus is thought to assist in learning and memory of associations taught during operant conditioning. 26. Those signals go to the caudate nucleus, which is involved in controlling the movement of the limbs. 27. Simultaneously, in the indirect pathway, the motor cortices send activating signals to the caudate and putamen. 28. The other three _ the caudate nucleus, the cingulate gyrus and the thalamus _ lie deep inside the brain. 29. Due to its association with damage to the caudate , this movement demonstrates the inhibitory nature of the caudate nucleus. 30. Due to its association with damage to the caudate, this movement demonstrates the inhibitory nature of the caudate nucleus.