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Article Abstract

Letter to the Editor

Sir: Drs. Petrides and Fink correctly point out an error in the Results section of our paper. The sentence to which they refer (in the second paragraph of their letter) should have read: "This possibility [i.e., of threshold or subthreshold stimulation] was most marked with the half-age method." This is clear from the data presented in Table 4 and is correctly stated in the Discussion section (as quoted by Drs. Petrides and Fink in the third paragraph of their letter).