knee-jerk reaction. Fig. an automatic or reflex reaction; an immediate reaction made without examining causes or facts. With one of his typical knee-jerk reactions, he said no immediately, citing some moral argument that no one understood. See also: reaction.
What did you see when the patients head was rolled to the opposite side? In horizontal canal BPPV, you should have seen a direction change. When the horizontal nystagmus is geotropic, the BPPV is suspected to be canalithiasis, occurring on the side with the more intense nystagmus.
Horizontal Asymptotes. A horizontal line is an asymptote only to the far left and the far right of the graph. Far left or far right is defined as anything past the vertical asymptotes or x-intercepts.Horizontal asymptotes are not asymptotic in the middle. It is okay to cross a horizontal asymptote in the middle.orizontal Asymptotes. A horizontal line is an asymptote only to the far left and the far right of the graph. Far left or far right is defined as anything past the vertical asymptotes or x-intercepts.