| Human (56 sources): 
							
								
								Abnormal corpus callosum morphology, 
													
							
								
								Abnormal involuntary eye movements, 
													
							
								
								Abnormality of coordination, 
													
							
								
								Abnormality of vision, 
													
							
								
								Abnormal myelination, 
													
							
								
								Absent speech, 
													
							
								
								Ataxia, 
													
							
								
								Attention deficit hyperactivity disorder, 
													
							
								
								Atypical behavior, 
													
							
								
								Autism, 
								
								Brain atrophy[+], 
													
							
								
								Cerebral atrophy , 
													
							
								
								Cerebral visual impairment , 
													
							
								
								Decreased fetal movement , 
													
							
								
								Delayed speech and language development , 
													
							
								
								Developmental regression , 
													
							
								
								Downslanted palpebral fissures , 
													
							
								
								Dyskinesia , 
													
							
								
								Dystonia , 
													
							
								
								EEG abnormality , 
													
							
								
								EEG with multifocal slow activity , 
													
							
								
								Encephalopathy , 
													
							
								
								Epileptic encephalopathy , 
													
							
								
								Failure to thrive , 
													
							
								
								Feeding difficulties , 
													
							
								
								Gastroesophageal reflux , 
													
							
								
								Generalized hypotonia , 
													
							
								
								Global developmental delay , 
													
							
								
								High forehead , 
													
							
								
								Hypodontia , 
													
							
								
								Hyporeflexia , 
													
							
								
								Hypsarrhythmia , 
													
							
								
								Impulsivity , 
													
							
								
								Inability to walk , 
													
							
								
								Intellectual disability , 
													
							
								
								Involuntary movements , 
													
							
								
								Lethargy , 
													
							
								
								Limb hypertonia , 
													
							
								
								Mental deterioration , 
													
							
								
								Microcephaly , 
													
							
								
								Myoclonus , 
													
							
								
								Nystagmus , 
													
							
								
								obsolete Difficulty walking , 
													
							
								
								Optic atrophy , 
													
							
								
								Poor head control , 
													
							
								
								Ptosis , 
													
							
								
								Reduced tendon reflexes , 
													
							
								
								Retinal degeneration , 
													
							
								
								Rigidity , 
													
							
								
								Secondary microcephaly , 
													
							
								
								Seizure , 
													
							
								
								Short stature , 
													
							
								
								Spasticity , 
													
							
								
								Status epilepticus , 
													
							
								
								Tremor , 
													
							
								
								Unsteady gait |