Abstract
It was tested whether the transposition response, cardiovascular response complex to change of habitat in the rat, is also an isopressor (without arterial pressure change) response, as it is in normal rats, in different experimental hypertensive rats. It was found to be a pressor response, i.e., arterial pressure was considerably elevated on transposition, in spontaneously hypertensive rats, DOCA salt hypertensive rats and neurogenic hypertensive rats. In renovascular hypertensive rats alone, the response was isopressor.
