Posted on behalf of Neloy Kumar Chakroborty Summary: Prefrontal cortex (PFC) is known to be an important area regulating the extinction of fear. Psychostimulants that can increase the extracellular levels of dopamine (DA) in the PFC were reported to be involved in the fear extinction, although the reports were dilemmatic. Methylphenidate hydrochloride (MPH) or Ritalin […]