“The Na‐dependent binding of L‐[3H]‐aspartate ( Kd= 484 nM) was strongly inhibited by D‐aspartate, L‐glutamate, D ,L‐aspartate β‐hydroxamate; was unaffected by calcium and magnesium; and showed a different pattern of distribution: cerebral cortex > cerebellum = pons‐medulla = spinal cord.”