Depression, Dysarthria, Emotional lability, Erratic myoclonus, Focal impaired awareness seizure, Focal sensory seizure with visual features, Focal-onset seizure, Gait disturbance, Generalized myoclonic seizure, Generalized non-motor (absence) seizure, Giant somatosensory evoked potentials, Headache, Hepatic failure, Hypsarrhythmia, Inability to walk, Lafora bodies, Mental deterioration, Myoclonus, Nasogastric tube feeding, Progressive neurologic deterioration, Psychosis, Recurrent aspiration pneumonia, Seizure, Severe photosensitivity, Sleep disturbance, Spasticity, Status epilepticus, Vegetative state, Visual hallucinations, Visual loss, obsolete Simple partial occipital seizures

decreased anxiety-related response, decreased glycogen catabolism rate, enhanced long term potentiation, hippocampal neuron degeneration, homeostasis/metabolism phenotype, impaired autophagy, increased brain glycogen level, increased cardiac muscle glycogen level, increased glycogen level, increased skeletal muscle glycogen level, increased susceptibility to pharmacologically induced seizures, limb grasping, lipofuscinosis, neuron degeneration