Figure 1. Frequency coding in the nervous system: Threshold stimulus. 1  If a threshold stimulus is applied to a neuron and maintained (top, red trace), action potentials occur at a maximum frequency that is limited by the sum of the absolute and relative refractory periods (bottom, blue trace).
Phyllis, Kentucky. Phyllis is an unincorporated community located in Pike County, Kentucky, United States. U.S. Geological Survey Geographic Names Information System: Phyllis, Kentucky.
MARSHALL Co.Ky. (WHAS11) -- As Marshall County continues to heal from Tuesdayâs high school shooting, the 15-year-old murder suspect appeared in court for the first time. The assistant county attorney laid out the court process for the young suspect who has yet to be named. The suspect has been ordered to remain in custody during the case.