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Severity of symptoms can vary greatly between individuals and throughout the lives of the individuals themselves. This may be partly because there are over 130 currently known different mutations that can cause the disorder, each with their own specifics, and also because myotonia congenita is an ion channel disorder, and ion channels are ...
In human sexuality, paralysis, also known as rape paralysis, [1] involuntary paralysis, [2] fright (or faint), [3] [4] or tonic immobility, [1] [3] [5] is a natural bodily survival reaction which can be automatically activated by the brain of a person who feels threatened by sexual violence. During this paralysis, one cannot move and cannot say ...
There is also an increasing body of evidence that points to a positive contribution of tonic immobility in human functioning. Thus, defensive immobilization is hypothesized to have played a crucial role in the evolution of human parent-child attachment, [ 61 ] sustained attention and suggestibility, [ 62 ] [ 63 ] REM sleep [ 64 ] and theory of ...
A minor bump to the head is the most commonly reported precipitant. Usually the toddler trips and falls; the child's caregiver may hear the bump. Most commonly, the child does not cry, although some parents give descriptions of the child "trying to cry" (Stephenson 1978), or there may be a gasp or a sob. Syncope rapidly ensues.
The term cataplexy originates from the Greek κατά (kata, meaning "down"), and πλῆξις (plēxis, meaning "strike") [4] and it was first used around 1880 in German physiology literature to describe the phenomenon of tonic immobility also known as "playing possum" (in reference to the opossum's behavior of feigning death when threatened ...
Paroxysmal symptoms include tonic, tonic–clonic, or myoclonic limb movements, [8] dystonic posturing, choreoathetosis, ocular nystagmus, and various other ocular motor abnormalities. [1] [6] Almost half of all people have dystonic symptoms prior to experiencing hemiplegia. [4] These symptoms generally begin before 8 months of age. [8]
Ictal limb immobility occurred in 25 percent The results of this study are valuable because few other data exist on the frequency, duration, and seizure characteristics associated with PP. However, the study is likely biased by the inclusion only of patients with medically intractable seizures who had undergone video-EEG monitoring, and the ...
The first generalized tonic–clonic seizure usually occurs in the context of a particular provoking factor, such as sleep deprivation, stress or alcohol consumption. [15] Other potential provoking factors include "praxis induction" which is the precipitation of seizures or epileptiform discharges in the context of a complex cognitive tasks. [ 16 ]