| 1. | Abetalipoproteinemia (2 studies) |
| 2. | Acromegaly (8 studies) |
| 3. | Acute Idiopathic Polyneuritis (2 studies) |
| 4. | Adrenoleukodystrophy (6 studies) |
| 5. | AIDS Dementia Complex (12 studies) |
| 6. | Alzheimer Disease (87 studies) |
| 7. | Amblyopia (10 studies) |
| 8. | Amnesia (8 studies) |
| 9. | Amyotrophic Lateral Sclerosis (17 studies) |
| 10. | Angelman Syndrome (1 study) |
| 11. | Aphasia (5 studies) |
| 12. | Apraxia, Ideomotor (2 studies) |
| 13. | Apraxias (3 studies) |
| 14. | Arachnoiditis (1 study) |
| 15. | Arnold-Chiari Malformation (2 studies) |
| 16. | Articulation Disorders (2 studies) |
| 17. | Ataxia (11 studies) |
| 18. | Auditory Diseases, Central (2 studies) |
| 19. | Auditory Perceptual Disorders (1 study) |
| 20. | Autoimmune Diseases of the Nervous System (57 studies) |
| 21. | Autonomic Nervous System Diseases (11 studies) |
| 22. | Back Pain (20 studies) |
| 23. | Bardet-Biedl Syndrome (1 study) |
| 24. | Basal Ganglia Diseases (94 studies) |
| 25. | Benign Essential Tremor Syndrome (6 studies) |
| 26. | beta-Oxidation Disorder (1 study) |
| 27. | Bifunctional Enzyme Deficiency (2 studies) |
| 28. | Blindness (15 studies) |
| 29. | Botulism (1 study) |
| 30. | Brain Abscess (8 studies) |
| 31. | Brain Concussion (2 studies) |
| 32. | Brain Damage, Chronic (10 studies) |
| 33. | Brain Diseases (754 studies) |
| 34. | Brain Diseases, Metabolic (58 studies) |
| 35. | Brain Diseases, Metabolic, Inborn (57 studies) |
| 36. | Brain Edema (2 studies) |
| 37. | Brain Infarction (4 studies) |
| 38. | Brain Injuries (28 studies) |
| 39. | Brain Ischemia (8 studies) |
| 40. | Brain Neoplasms (317 studies) |
| 41. | Brain Stem Neoplasms (2 studies) |
| 42. | Brown-Sequard Syndrome (1 study) |
| 43. | Carotid Artery Diseases (28 studies) |
| 44. | Carotid Stenosis (8 studies) |
| 45. | Carpal Tunnel Syndrome (5 studies) |
| 46. | Cataplexy (5 studies) |
| 47. | Causalgia (2 studies) |
| 48. | Central Cord Syndrome (1 study) |
| 49. | Central Nervous System Bacterial Infections (2 studies) |
| 50. | Central Nervous System Diseases (875 studies) |
| 51. | Central Nervous System Fungal Infections (18 studies) |
| 52. | Central Nervous System Infections (51 studies) |
| 53. | Central Nervous System Neoplasms (239 studies) |
| 54. | Central Nervous System Parasitic Infections (8 studies) |
| 55. | Central Nervous System Protozoal Infections (8 studies) |
| 56. | Central Nervous System Viral Diseases (21 studies) |
| 57. | Cerebellar Ataxia (2 studies) |
| 58. | Cerebellar Diseases (6 studies) |
| 59. | Cerebral Amyloid Angiopathy (1 study) |
| 60. | Cerebral Arterial Diseases (9 studies) |
| 61. | Cerebral Hemorrhage (5 studies) |
| 62. | Cerebral Infarction (6 studies) |
| 63. | Cerebral Palsy (11 studies) |
| 64. | Cerebrovascular Accident (155 studies) |
| 65. | Cerebrovascular Disorders (194 studies) |
| 66. | Chorea (6 studies) |
| 67. | Chorea Minor (1 study) |
| 68. | Choreatic Disorders (9 studies) |
| 69. | Choroid Plexus Neoplasms (39 studies) |
| 70. | Chronobiology Disorders (2 studies) |
| 71. | Cluster Headache (2 studies) |
| 72. | Cockayne Syndrome (1 study) |
| 73. | Communication Disorders (18 studies) |
| 74. | Complex Regional Pain Syndromes (3 studies) |
| 75. | Confusion (2 studies) |
| 76. | Consciousness Disorders (6 studies) |
| 77. | Convulsions (40 studies) |
| 78. | Cranial Nerve Diseases (35 studies) |
| 79. | Cranial Nerve Neoplasms (9 studies) |
| 80. | Craniocerebral Trauma (19 studies) |
| 81. | Deafness (5 studies) |
| 82. | Delirium (128 studies) |
| 83. | Dementia (138 studies) |
| 84. | Dementia, Vascular (2 studies) |
| 85. | Demyelinating Autoimmune Diseases, CNS (43 studies) |
| 86. | Demyelinating Diseases (63 studies) |
| 87. | Dermatomyositis (12 studies) |
| 88. | Diabetes Insipidus, Neurogenic (3 studies) |
| 89. | Diabetic Lumbosacral Radiculoplexus Neuropathy (1 study) |
| 90. | Diabetic Neuropathies (20 studies) |
| 91. | Diffuse Cerebral Sclerosis of Schilder (1 study) |
| 92. | Disorders of Excessive Somnolence (6 studies) |
| 93. | Down Syndrome (4 studies) |
| 94. | Dysarthria (2 studies) |
| 95. | Dyskinesia, Drug-Induced (2 studies) |
| 96. | Dyskinesias (30 studies) |
| 97. | Dyslexia (5 studies) |
| 98. | Dyslexia, Acquired (1 study) |
| 99. | Dyssomnias (51 studies) |
| 100. | Dystonia (18 studies) |
| 101. | Dystonic Disorders (18 studies) |
| 102. | Encephalitis (21 studies) |
| 103. | Encephalitis, Arbovirus (3 studies) |
| 104. | Encephalitis, Herpes Simplex (1 study) |
| 105. | Encephalitis, Viral (10 studies) |
| 106. | Encephalomalacia (1 study) |
| 107. | Encephalomyelitis (5 studies) |
| 108. | Encephalomyelitis, Acute Disseminated (1 study) |
| 109. | Eosinophilia-Myalgia Syndrome (1 study) |
| 110. | Epilepsies, Myoclonic (2 studies) |
| 111. | Epilepsies, Partial (12 studies) |
| 112. | Epilepsy (60 studies) |
| 113. | Epilepsy, Absence (2 studies) |
| 114. | Epilepsy, Complex Partial (2 studies) |
| 115. | Epilepsy, Frontal Lobe (1 study) |
| 116. | Epilepsy, Generalized (4 studies) |
| 117. | Epilepsy, Post-Traumatic (1 study) |
| 118. | Epilepsy, Temporal Lobe (5 studies) |
| 119. | Epilepsy, Tonic-Clonic (1 study) |
| 120. | Esotropia (3 studies) |
| 121. | Essential Tremor (6 studies) |
| 122. | Esthesioneuroblastoma, Olfactory (37 studies) |
| 123. | Fabry Disease (14 studies) |
| 124. | Facial Nerve Diseases (1 study) |
| 125. | Facial Neuralgia (1 study) |
| 126. | Facial Pain (5 studies) |
| 127. | Facial Paralysis (1 study) |
| 128. | Familial Mediterranean Fever (2 studies) |
| 129. | Fatigue Syndrome, Chronic (4 studies) |
| 130. | Fibromyalgia (22 studies) |
| 131. | Fragile X Syndrome (1 study) |
| 132. | Friedreich Ataxia (3 studies) |
| 133. | Fucosidosis (2 studies) |
| 134. | Gangliosidoses (2 studies) |
| 135. | Gangliosidoses GM2 (1 study) |
| 136. | Gangliosidosis GM1 (1 study) |
| 137. | Gaucher Disease (12 studies) |
| 138. | Glycogen Storage Disease Type II (8 studies) |
| 139. | Guillain-Barre Syndrome (2 studies) |
| 140. | Hallucinations (6 studies) |
| 141. | Head Injuries, Closed (3 studies) |
| 142. | Headache (8 studies) |
| 143. | Headache Disorders (7 studies) |
| 144. | Hearing Disorders (15 studies) |
| 145. | Hearing Loss (16 studies) |
| 146. | Hemiplegia (8 studies) |
| 147. | Hepatic Encephalopathy (1 study) |
| 148. | Hepatolenticular Degeneration (2 studies) |
| 149. | Hereditary Central Nervous System Demyelinating Diseases (7 studies) |
| 150. | Hereditary Motor and Sensory Neuropathies (1 study) |
| 151. | Hippel-Lindau Disease (12 studies) |
| 152. | Holoprosencephaly (2 studies) |
| 153. | Homocystinuria (1 study) |
| 154. | Huntington Disease (8 studies) |
| 155. | Hydrocephalus (1 study) |
| 156. | Hyperalgesia (5 studies) |
| 157. | Hyperkinesis (25 studies) |
| 158. | Hyperpituitarism (7 studies) |
| 159. | Hypokalemic Periodic Paralysis (1 study) |
| 160. | Hypokinesia (1 study) |
| 161. | Hypopituitarism (7 studies) |
| 162. | Hypothalamic Diseases (21 studies) |
| 163. | Hypothalamic Neoplasms (6 studies) |
| 164. | Hypoxia, Brain (10 studies) |
| 165. | Hypoxia-Ischemia, Brain (10 studies) |
| 166. | Inappropriate ADH Syndrome (1 study) |
| 167. | Infratentorial Neoplasms (1 study) |
| 168. | Intracranial Aneurysm (2 studies) |
| 169. | Intracranial Arterial Diseases (9 studies) |
| 170. | Intracranial Arteriosclerosis (7 studies) |
| 171. | Intracranial Embolism (3 studies) |
| 172. | Intracranial Embolism and Thrombosis (3 studies) |
| 173. | Intracranial Hemorrhages (8 studies) |
| 174. | Intracranial Hypertension (2 studies) |
| 175. | Isaacs Syndrome (1 study) |
| 176. | Ischemic Attack, Transient (6 studies) |
| 177. | Kugelberg-Welander Syndrome (1 study) |
| 178. | Lafora Disease (1 study) |
| 179. | Lambert-Eaton Myasthenic Syndrome (1 study) |
| 180. | Language Development Disorders (1 study) |
| 181. | Language Disorders (18 studies) |
| 182. | Learning Disorders (4 studies) |
| 183. | Lennox-Gastaut Syndrome (3 studies) |
| 184. | Lesch-Nyhan Syndrome (1 study) |
| 185. | Leukodystrophy, Globoid Cell (3 studies) |
| 186. | Leukodystrophy, Metachromatic (3 studies) |
| 187. | Leukoencephalopathy, Progressive Multifocal (6 studies) |
| 188. | Leukomalacia, Periventricular (2 studies) |
| 189. | Lissencephaly (1 study) |
| 190. | Low Back Pain (17 studies) |
| 191. | Lyme Neuroborreliosis (1 study) |
| 192. | Lysosomal Storage Diseases, Nervous System (37 studies) |
| 193. | Marburg's Variant of Multiple Sclerosis (1 study) |
| 194. | Median Neuropathy (5 studies) |
| 195. | MELAS Syndrome (2 studies) |
| 196. | Memory Disorders (11 studies) |
| 197. | Meningeal Neoplasms (23 studies) |
| 198. | Meningioma (46 studies) |
| 199. | Meningitis (24 studies) |
| 200. | Meningitis, Cryptococcal (18 studies) |
| 201. | Meningitis, Fungal (18 studies) |
| 202. | Meningoencephalitis (1 study) |
| 203. | Meningomyelocele (1 study) |
| 204. | Menkes Kinky Hair Syndrome (1 study) |
| 205. | Mental Retardation (34 studies) |
| 206. | Mental Retardation, X-Linked (14 studies) |
| 207. | Microencephaly (1 study) |
| 208. | Migraine (5 studies) |
| 209. | Mitochondrial Encephalomyopathies (2 studies) |
| 210. | Mitochondrial Myopathies (3 studies) |
| 211. | Mononeuropathies (9 studies) |
| 212. | Motor Neuron Disease (28 studies) |
| 213. | Movement Disorders (130 studies) |
| 214. | Mucolipidoses (2 studies) |
| 215. | Mucopolysaccharidosis II (2 studies) |
| 216. | Multiple Sclerosis (44 studies) |
| 217. | Multiple Sclerosis, Chronic Progressive (2 studies) |
| 218. | Multiple Sclerosis, Relapsing-Remitting (7 studies) |
| 219. | Multiple System Atrophy (3 studies) |
| 220. | Muscle Cramp (9 studies) |
| 221. | Muscle Hypertonia (5 studies) |
| 222. | Muscle Hypotonia (1 study) |
| 223. | Muscle Rigidity (2 studies) |
| 224. | Muscle Spasticity (9 studies) |
| 225. | Muscle Weakness (5 studies) |
| 226. | Muscular Atrophy (8 studies) |
| 227. | Muscular Atrophy, Spinal (4 studies) |
| 228. | Muscular Diseases (102 studies) |
| 229. | Muscular Disorders, Atrophic (17 studies) |
| 230. | Muscular Dystrophies (14 studies) |
| 231. | Muscular Dystrophy, Duchenne (6 studies) |
| 232. | Muscular Dystrophy, Facioscapulohumeral (2 studies) |
| 233. | Mutism (1 study) |
| 234. | Myasthenia Gravis (2 studies) |
| 235. | Myelitis (13 studies) |
| 236. | Myelitis, Transverse (1 study) |
| 237. | Myelodysplasia (414 studies) |
| 238. | Myoclonic Epilepsies, Progressive (1 study) |
| 239. | Myoclonus (7 studies) |
| 240. | Myositis (17 studies) |
| 241. | Myositis, Inclusion Body (4 studies) |
| 242. | Myotonic Disorders (2 studies) |
| 243. | Myotonic Dystrophy (1 study) |
| 244. | Narcolepsy (5 studies) |
| 245. | Neck Pain (6 studies) |
| 246. | Nerve Compression Syndromes (5 studies) |
| 247. | Nerve Sheath Tumors (9 studies) |
| 248. | Nervous System Diseases (1353 studies) |
| 249. | Nervous System Malformations (10 studies) |
| 250. | Nervous System Neoplasms (247 studies) |
| 251. | Neural Tube Defects (5 studies) |
| 252. | Neuralgia (14 studies) |
| 253. | Neurilemmoma (3 studies) |
| 254. | Neuritis (5 studies) |
| 255. | Neurobehavioral Manifestations (72 studies) |
| 256. | Neurocutaneous Syndromes (21 studies) |
| 257. | Neurodegenerative Diseases (243 studies) |
| 258. | Neurofibroma (9 studies) |
| 259. | Neurofibroma, Plexiform (4 studies) |
| 260. | Neurofibromatoses (10 studies) |
| 261. | Neurofibromatosis 1 (6 studies) |
| 262. | Neurofibromatosis 2 (5 studies) |
| 263. | Neurofibrosarcoma (20 studies) |
| 264. | Neurologic Manifestations (288 studies) |
| 265. | Neuroma, Acoustic (3 studies) |
| 266. | Neuromuscular Diseases (148 studies) |
| 267. | Neuromuscular Junction Diseases (4 studies) |
| 268. | Neuromuscular Manifestations (11 studies) |
| 269. | Neuromyelitis Optica (1 study) |
| 270. | Neuronal Ceroid-Lipofuscinosis (1 study) |
| 271. | Neurosyphilis (1 study) |
| 272. | Neurotoxicity Syndromes (16 studies) |
| 273. | Niemann-Pick Diseases (3 studies) |
| 274. | Nonsyndromic Hereditary Hearing Impairment (1 study) |
| 275. | Nystagmus, Congenital (1 study) |
| 276. | Nystagmus, Pathologic (4 studies) |
| 277. | Ocular Motility Disorders (13 studies) |
| 278. | Ophthalmoplegia (1 study) |
| 279. | Optic Nerve Diseases (16 studies) |
| 280. | Optic Nerve Glioma (6 studies) |
| 281. | Optic Nerve Neoplasms (7 studies) |
| 282. | Optic Neuritis (5 studies) |
| 283. | Optic Neuropathy, Ischemic (2 studies) |
| 284. | Ornithine Carbamoyltransferase Deficiency Disease (2 studies) |
| 285. | Pain (205 studies) |
| 286. | Papilledema (4 studies) |
| 287. | Paralyses, Familial Periodic (1 study) |
| 288. | Paralysis (30 studies) |
| 289. | Paralysis, Hyperkalemic Periodic (1 study) |
| 290. | Paramyotonia Congenita (1 study) |
| 291. | Paraneoplastic Syndromes, Nervous System (2 studies) |
| 292. | Paraparesis (6 studies) |
| 293. | Paraparesis, Spastic (6 studies) |
| 294. | Paraparesis, Tropical Spastic (4 studies) |
| 295. | Paraplegia (4 studies) |
| 296. | Parasomnias (2 studies) |
| 297. | Paresis (2 studies) |
| 298. | Paresthesia (2 studies) |
| 299. | Parkinson Disease (75 studies) |
| 300. | Parkinsonian Disorders (69 studies) |
| 301. | Perceptual Disorders (4 studies) |
| 302. | Peripheral Nervous System Diseases (63 studies) |
| 303. | Peripheral Nervous System Neoplasms (11 studies) |
| 304. | Peroxisomal Disorders (7 studies) |
| 305. | Phantom Limb (1 study) |
| 306. | Phenylketonurias (2 studies) |
| 307. | Pick Disease of the Brain (6 studies) |
| 308. | Pinealoma (25 studies) |
| 309. | Pituitary Diseases (20 studies) |
| 310. | Pituitary Neoplasms (18 studies) |
| 311. | Poliomyelitis (5 studies) |
| 312. | Polymyositis (12 studies) |
| 313. | Polyneuropathies (15 studies) |
| 314. | Polyradiculoneuropathy (7 studies) |
| 315. | Polyradiculoneuropathy, Chronic Inflammatory Demyelinating (3 studies) |
| 316. | Polyradiculopathy (2 studies) |
| 317. | Porencephaly (1 study) |
| 318. | Postpoliomyelitis Syndrome (4 studies) |
| 319. | Prader-Willi Syndrome (2 studies) |
| 320. | Pseudotumor Cerebri (1 study) |
| 321. | Psychomotor Agitation (15 studies) |
| 322. | Psychomotor Disorders (4 studies) |
| 323. | Quadriplegia (4 studies) |
| 324. | Radiculopathy (4 studies) |
| 325. | Reflex Sympathetic Dystrophy (3 studies) |
| 326. | Refsum Disease (2 studies) |
| 327. | Restless Legs Syndrome (3 studies) |
| 328. | Rett Syndrome (4 studies) |
| 329. | Sciatic Neuropathy (4 studies) |
| 330. | Sciatica (4 studies) |
| 331. | Seizures (40 studies) |
| 332. | Sensation Disorders (38 studies) |
| 333. | Shy-Drager Syndrome (1 study) |
| 334. | Sleep Apnea Syndromes (35 studies) |
| 335. | Sleep Apnea, Obstructive (6 studies) |
| 336. | Sleep Deprivation (4 studies) |
| 337. | Sleep Disorders (58 studies) |
| 338. | Sleep Disorders, Circadian Rhythm (2 studies) |
| 339. | Sleep Disorders, Intrinsic (50 studies) |
| 340. | Sleep Initiation and Maintenance Disorders (9 studies) |
| 341. | Somatosensory Disorders (3 studies) |
| 342. | Spasm (7 studies) |
| 343. | Spasmodic Dysphonia (7 studies) |
| 344. | Spasms, Infantile (2 studies) |
| 345. | Spastic Dysphonia (7 studies) |
| 346. | Spastic Paraplegia, Hereditary (1 study) |
| 347. | Speech Disorders (11 studies) |
| 348. | Sphingolipidoses (33 studies) |
| 349. | Spinal and Bulbar Muscular Atrophy (1 study) |
| 350. | Spinal Cord Diseases (70 studies) |
| 351. | Spinal Cord Injuries (29 studies) |
| 352. | Spinal Cord Neoplasms (10 studies) |
| 353. | Spinal Dysraphism (2 studies) |
| 354. | Spinocerebellar Degenerations (6 studies) |
| 355. | Status Epilepticus (1 study) |
| 356. | Stiff-Person Syndrome (3 studies) |
| 357. | Strabismus (10 studies) |
| 358. | Sturge-Weber Syndrome (21 studies) |
| 359. | Stuttering (7 studies) |
| 360. | Subarachnoid Hemorrhage (3 studies) |
| 361. | Supranuclear Palsy, Progressive (2 studies) |
| 362. | Supratentorial Neoplasms (6 studies) |
| 363. | Syncope (7 studies) |
| 364. | Syncope, Vasovagal (3 studies) |
| 365. | Syringomyelia (3 studies) |
| 366. | Tangier Disease (1 study) |
| 367. | Taste Disorders (1 study) |
| 368. | Tauopathies (86 studies) |
| 369. | Tay-Sachs Disease (1 study) |
| 370. | Temporal Arteritis (3 studies) |
| 371. | Tension Headache (1 study) |
| 372. | Tic Disorders (21 studies) |
| 373. | Tics (21 studies) |
| 374. | Tinnitus (2 studies) |
| 375. | Torticollis (3 studies) |
| 376. | Tourette Syndrome (20 studies) |
| 377. | Toxoplasmosis, Cerebral (8 studies) |
| 378. | Trauma, Nervous System (46 studies) |
| 379. | Tremor (13 studies) |
| 380. | Trigeminal Nerve Diseases (2 studies) |
| 381. | Trigeminal Neuralgia (2 studies) |
| 382. | Tuberous Sclerosis (5 studies) |
| 383. | Tyrosinemias (2 studies) |
| 384. | Unconsciousness (6 studies) |
| 385. | Vagus Nerve Diseases (1 study) |
| 386. | Vascular Headaches (6 studies) |
| 387. | Vasculitis, Central Nervous System (3 studies) |
| 388. | Vertigo (1 study) |
| 389. | Vestibular Neuronitis (1 study) |
| 390. | Vestibulocochlear Nerve Diseases (4 studies) |
| 391. | Vision Disorders (21 studies) |
| 392. | Vision, Low (3 studies) |
| 393. | Vocal Cord Paralysis (1 study) |
| 394. | Voice Disorders (8 studies) |
| 395. | West Nile Fever (3 studies) |
| 396. | Williams Syndrome (2 studies) |
| 397. | Zellweger Syndrome (2 studies) |
