| HP:0000006 | Autosomal dominant inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators] |
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| HP:0000643 | Blepharospasm | "An involuntary recurrent spasm of both eyelids." [HPO:curators] |
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| HP:0001249 | Mental retardation | |
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| HP:0001312 | Giant somatosensory evoked potentials | "An abnormal enlargement (i.e. increase in measured voltage) of somatosensory evoked potentials." [HPO:curators] |
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| HP:0001326 | EEG shows generalized and focal spike and wave complexes | |
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| HP:0001336 | Myoclonus | "Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements." [HPO:curators] |
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| HP:0001337 | Tremor | "An unintentional, oscillating to-and-fro muscle movement." [HPO:curators] |
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| HP:0001340 | Enhancement of the C-reflex | |
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| HP:0001351 | Jerk-locked premyoclonus spikes | |
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| HP:0002069 | Generalized tonic-clonic seizures | "Generalized tonic-clonic seizures are `generalized seizures` (HP:0002197) in which the patient suddenly loses conciousness, the eyes roll back, and the entire body musculature undergoes tonic contractions. In the clonic phase of the seizure, there are rhythmic contractions of the musculature alternating with relaxation of all muscle groups. Loss of sphincter control during the seizure is common. This form of seizure was formerly commonly called grand mal seizure." [HPO:curators] |
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| HP:0002197 | Generalized seizures | "Recurrent generalized `seizures` (HP:0001250), that is seizures that affect both cerebral hemispheres from the start of the seizure, producing loss of consciousness." [HPO:probinson] |
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| HP:0002315 | Headache | "Cephalgia, or pain in the head originating from the cerebral vault." [HPO:curators] |
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| HP:0002353 | EEG abnormalities | "Abnormality observed by electroencephalogram (EEG), which is used to record of the brain s spontaneous electrical activity from multiple electrodes placed on the scalp." [HPO:curators] |
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| HP:0002378 | Hand tremor | |
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| HP:0003581 | Onset in adulthood | |
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| HP:0003680 | Nonprogressive disorder | |
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| HP:0007359 | Partial seizures | "Recurrent partial `seizures` (HP:0001250). In a partial seizure, the electrical disturbance is limited to one part or side of the brain. That is, partial epilepsies are epileptic disorders in which clinical or laboratory findings disclose a localized origin of seizures." [HPO:curators] |
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| HP:0010852 | EEG: photoparoxysmal response | "EEG abnormalities (epileptiform discharges) evoked by flashing lights or black and white striped patterns." [HPO:probinson] |
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| HP:0100543 | Cognitive impairment | "Abnormality in the process of thought including the ability to process information." [HPO:sdoelken] |
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| HP:0100576 | Amaurosis fugax | "A transient visual disturbance that is typically caused by a circulatory, ocular or neurological underlying condition." [HPO:sdoelken] |
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