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Clinical Findings (Signs and Symptoms) [1] [2] [10] [26] [14]: onset of mirror movements in infancy or early childhood; persistence of mirror movements into and throughout adulthood with the absence of other neurologic disorders; little improvement nor deterioration of mirror movements over the course of one's life
Prosopometamorphopsia (PMO [1]), also known as demon face syndrome, [2] is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position.
From the questionnaire, it was determined that approximately 1.5% of the population experienced mirror-touch synesthesia symptoms. Further studies have shown the prevalence to be 1.6%, meaning that this condition is one of the more common types of synesthesia, along with grapheme-color synesthesia (1.4%) and day-color synesthesia (2.8%). [ 6 ]
Facial synkinesis is a common sequela to Idiopathic Facial Nerve Paralysis, also called Bell's Palsy or Facial Palsy. [2] Bell's Palsy, which is thought to occur due to a viral reactivation which can lead (through unknown mechanisms) to diffuse axon demyelination and degeneration of the seventh cranial nerve, results in a hemifacial paralysis due to non-functionality of the nerve.
A young boy mirrors the gesture of his grandmother Mirroring is the behavior in which one person subconsciously imitates the gesture , speech pattern , or attitude of another. [ 1 ] Mirroring often occurs in social situations, particularly in the company of close friends or family, often going unnoticed by both parties.
The result is a compensatory movement of the eyes. The vestibular-ocular reflex (VOR) is a reflex eye movement that stabilizes images on the retina during head movement by producing an eye movement in the direction opposite to head movement, thus preserving the image on the center of the visual field. For example, when the head moves to the ...
A change in the magnitude of the vestibulo-ocular reflex due to vestibular disease can also lead to oscillopsia during rapid head movements. [3] Oscillopsia may also be caused by involuntary eye movements such as nystagmus , or impaired coordination in the visual cortex (especially due to toxins ) and is one of the symptoms of superior canal ...
HGPPS prevents horizontal movement of both eyes, causing people with this condition to have to move their head to see moving objects. In addition to the eye movement impairment, HGPPS is coupled with progressive scoliosis, although eye symptoms usually appear before scoliosis. HGPPS is caused by a mutation in the ROBO3 gene, which is important ...