Doctor insights on:
Causes Of Abnormal Reflexes
What are some physiological (non-psychological) causes of exaggerated spinal reflexes (i.E. Exaggerated jerking/flinching in response to light touch)?
Startle vs DTR's: Your description of exaggerated jerking with light touch sounds like someone with very brisk "startle" reflex, as in post traumatic stress disorder. This is a physiological response to hypervigilance, as ptsd encompasses the whole person and his/her body. Hyperactive deep tendon reflexes (dtr's) can result from conditions like cerebral palsy, strokes, inflammatory diseases, and brain injury. ...Read more
Can be benign: Holmes-adie syndrome describes folks who have life-long pupillary and reflex responses which are aberrant but not indicative of any future disease. Knee reflexes can be affected by lumbar stenosis, and peripheral neuropathy, but if you do not suffer back or leg pain, numbness or weakness, there is no cause for concern. ...Read more
Physiology: Due to compression of corticospinal pathways, weakness can occur, and inhibition of these areas in the spinal cord allow excitatory responses to supervene, and thence increased reflexes in the legs. Actually, an archaic response to preserve function in motor pathways in case of injury. ...Read more
Yes!: Research have shown that acute alcohol intoxication results in diminished cognitive and psychomotor abilities. More importantly, this results in an increased number of alcohol-related accidents and deaths due to impaired performance of motor tasks such as tracking, and reaction time. Additionally, alcohol use tends to inhibit responses in go/no-go tasks, thereby complicating easier tasks. ...Read moreSee 1 more doctor answer
Went in for back pain.dr says no reflexes in my left leg. He says nothing to be concerned about only one leg. Should I be concerned? what causes that?
Individual sensitivi: The only answer this would be the you have individual sensitivity or susceptibility to this caused by the caffeine. It is well-known that caffeine worsens hand tremors. In addition, it would generally increase reflexes. However, when it comes to chemicals in the brain, no two people are alike. This is also why you would have dizziness when other people don't. ...Read more
When you have foot drop, even mild will your reflexes in that leg be abnormal? If so, what changes would you see?
Ankle reflex: Your ankle reflex may be reduced or absent. ...Read more
How to differentiate between infantile spams and other types of infantile seizures and normal jerky movements caused by strong reflexes? Scared!
West Syndrome has: clusters of brief flexor or extensor contractions ( spasms) with a distinct EEG pattern ,often with developmental regression. Baby's neurologist will tell you after evaluation. ~50% have a congenital cause like cortical maldevelopment , metabolic syndromes or genetic syndromes. . Any brain pathology increases risk of Autistic Spectrum Disorder. Tuberous Sclerosis often causes West Sx. & ASD. ...Read more
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