Successive stimulation converts the pure positive into diphasic and ultimately into normal negative response.
The positive followed by the negative thus gives rise to a diphasic response.
(b) The amplitude of vibration of B is now slightly reduced, and we obtain the diphasic effect.
diphasic di·pha·sic (dī-fā'zĭk)
Having two phases or stages.
Of or being a disorder marked by two distinct phases, such as bipolar disorder.