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Apraxia is a motor disorder caused by damage to the brain (specifically the posterior parietal cortex or corpus callosum [ 1] ), which causes difficulty with motor planning to perform tasks or movements. The nature of the damage determines the disorder's severity, and the absence of sensory loss or paralysis helps to explain the level of ...
Ataxia (from Greek α- [a negative prefix] + -τάξις [order] = "lack of order") is a neurological sign consisting of lack of voluntary coordination of muscle movements that can include gait abnormality, speech changes, and abnormalities in eye movements, that indicates dysfunction of parts of the nervous system that coordinate movement, such as the cerebellum.
Friedreich's ataxia. Friedreich's ataxia ( FRDA or FA) is an autosomal-recessive genetic disease that causes difficulty walking, a loss of coordination in the arms and legs, and impaired speech that worsens over time. Symptoms generally start between 5 and 20 years of age.
Oculomotor apraxia. Oculomotor apraxia ( OMA) is the absence or defect of controlled, voluntary, and purposeful eye movement. [ 1] It was first described in 1952 by the American ophthalmologist David Glendenning Cogan. [ 2] People with this condition have difficulty moving their eyes horizontally and moving them quickly.
Bruns apraxia, or frontal ataxia, is a gait apraxia [1] found in patients with bilateral frontal lobe disorders. It is characterised by an inability to initiate the process of walking, despite the power and coordination of the legs being normal when tested in the seated or lying position. The gait is broad-based with short steps with a tendency ...
Cerebellar ataxia is a form of ataxia originating in the cerebellum. [ 1] Non-progressive congenital ataxia (NPCA) is a classical presentation of cerebral ataxias. Cerebellar ataxia can occur as a result of many diseases and may present with symptoms of an inability to coordinate balance, gait, extremity and eye movements. [ 2]
Constructional apraxia. Constructional apraxia is a neurological disorder in which people are unable to perform tasks or movements even though they understand the task, are willing to complete it, and have the physical ability to perform the movements. [ 1]
Ataxia–telangiectasia. Ataxia–telangiectasia ( AT or A–T ), also referred to as ataxia–telangiectasia syndrome or Louis–Bar syndrome, [ 1] is a rare, neurodegenerative disease causing severe disability. Ataxia refers to poor coordination and telangiectasia to small dilated blood vessels, both of which are hallmarks of the disease. [ 2]
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