| HP:0000007 | Autosomal recessive 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 homozygotes. In the context of medical genetics, autosomal recessive disorders manifest in homozygotes (with two copies of the mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele)." [HPO:curators] |
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| HP:0001249 | Mental retardation | |
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| HP:0001250 | Seizures | "Seizures are an intermittent `abnormality of the central nervous system` (FMA:HP:0002011) due to a sudden, excessive, disorderly discharge of cerebral neurons and characterized clinically by some combination of disturbance of sensation, loss of consciousness, impairment of psychic function, or convulsive movements." [HPO:probinson] |
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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: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: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: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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