Latency of plantar grasp.
Latency of plantar grasp was measured in 437 normal infants from the first day to 6 months of age with a special instrument for measurement of the latency. The latency was prolonged during the birth shock period and returned to the previous value and remained at almost the same value until 7 days, then gradually shortened during the first four months. After 5 months, the values were not reliable. Our method is simple and not only is useful for assessment of maturation of the nervous system, but also helpful for better understanding of the pathophysiology of the nervous system.
D005528:Foot / Q000502:physiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009420:Nervous System / Q000503:physiopathology; D009424:Nervous System Physiological Phenomena; D011930:Reaction Time; D012018:Reflex