Can Moro reflex cause seizures?
While the Moro reflex is completely normal, there are some sudden movements that need immediate attention, such as a seizure. There are different types of seizures and can sometimes be hard to recognize.
What causes startle seizures?
Startle seizures are induced by sudden and unexpected stimuli. The startle (unexpected and sudden presentation of the stimulus) is the provoking factor although, rarely, patients may be specifically sensitive to one sensory modality.
Can you have a seizure from being startled?
Startle epilepsy (or startle-induced seizures) is a type of reflex epilepsy whereby a seizure is caused by a sudden and unexpected stimulus. This could be a wide variety of things, and it often varies from person to person.
What is a reflex seizure?
Reflex epilepsies are a group of epilepsy syndromes in which a certain trigger or stimulus brings on seizures. 85% of reflex seizures are generalized tonic-clonic seizures. The most common form of reflex epilepsy is photosensitive epilepsy, in which flashing lights trigger seizures.
What is a startle seizure?
Startle epilepsy is a type of reflex epilepsy in which seizures are provoked by loud noises or sudden surprises. Most patients with startle epilepsy are only sensitive to one sensory modality (i.e. temperature, taste, sound, pressure).
What type of seizure is a startle seizure?
What causes high startle reflex?
The exaggerated startle reflex in HPX is probably caused by brainstem pathology. This is supported by the concentration of glycine receptors in the brainstem and spinal cord (Rousseau et al., 2008). In addition, symptomatic excessive startling is usually caused by brainstem damage (Bakker et al., 2006).
Why does a person startle easily?
These symptoms can be observed in conditions such as anxiety disorder and stress reactions. Being easily startled would also be accompanied by other signs of stress and anxiety.
What is a reflex anoxic seizure?
Reflex Anoxic Seizures (RAS) is the term used for a particular fit which is neither epileptic nor due to cyanotic breath-holding, but which rather results from a brief stoppage of the heart through excessive activity of the vagus nerve.
What causes a person to have a startle seizure?
Startle epilepsy (or startle-induced seizures) is a type of reflex epilepsy whereby a seizure is caused by a sudden and unexpected stimulus.
What are the signs and symptoms of startle epilepsy?
Startle epilepsy is characterized by seizures triggered by unexpected sudden sensory stimuli, usually sound or touch. Most patients have intractable seizures, evident static encephalopathy, and neurologic deficits (infantile hemiplegia is common) with corresponding abnormal brain imaging.
Can a reflex seizure be associated with generalized epilepsy?
Reflex seizures that occur in focal and generalized epilepsy syndromes that are also associated with spontaneous seizures are listed as seizure types. Isolated reflex seizures can also occur in situations that do not necessarily require a diagnosis of epilepsy.
What is the physiologic mechanism of the startle reflex?
The normal startle reflex, a common physiologic mechanism, consists of a symmetrical generalized myogenic flexor response with a classic rostrocaudal recruitment activation of different muscles, which can be elicited by unexpected stimuli ( Brown et al., 1991 ).