Frontal release sign
Frontal Release Sign
The Frontal Release Sign (pronunciation: /ˈfrʌntəl rɪˈliːs saɪn/) is a neurological phenomenon often observed in patients with certain types of brain damage or neurodegenerative diseases.
Etymology
The term "Frontal Release Sign" is derived from the fact that these signs were originally associated with damage to the frontal lobes of the brain, which "released" primitive reflexes normally suppressed by the frontal lobes.
Definition
The Frontal Release Sign refers to the reappearance of primitive reflexes that are normally present in infants but disappear as the brain matures. These reflexes are "released" due to damage or disease affecting the frontal lobes, which normally inhibit these reflexes in adults.
Related Terms
- Primitive reflexes: These are reflex actions of the central nervous system that are exhibited by normal infants, but not neurologically intact adults, in response to particular stimuli.
- Frontal lobe: The largest of the four major lobes of the brain in mammals, and is located at the front of each hemisphere.
- Neurodegenerative disease: A term for a range of conditions which primarily affect the neurons in the human brain.
Signs and Symptoms
The Frontal Release Sign is typically identified through a series of physical examinations that test for the presence of primitive reflexes. These may include the grasp reflex, the rooting reflex, the sucking reflex, and the palmomental reflex.
Diagnosis
Diagnosis of the Frontal Release Sign is typically made through a combination of physical examination and medical history. Neuroimaging techniques such as MRI or CT scan may also be used to identify damage or disease in the frontal lobes.
Treatment
Treatment for the Frontal Release Sign typically involves addressing the underlying cause of the frontal lobe damage or disease. This may involve medication, surgery, or other forms of therapy.
External links
- Medical encyclopedia article on Frontal release sign
- Wikipedia's article - Frontal release sign
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