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Figure 2


Fig. 2. The roll-induced vestibuloocular reflex in Xenopus tadpoles. (A) Schematic presentation of the frontal view of an animal that indicates the direction (arrow) and extent ({alpha}°) of eye movement during a right and left roll, respectively. R, reference line that is constant with respect to the animal; E, eye cup margin that is used as recording line. (B) Typical rVOR characteristic obtained during a 360° lateral roll. Definitions of the rVOR amplitude and those parameters used for the calculation of the rVOR gain (see arrows at the left side of the characteristic) are included. (C,D) Original video picture of the eyes of a tadpole in a frontal view in the horizontal (C) and 90° lateral (D) position. Because the camera is moved with the stimulation machine, only the eyes change their position. With respect to the frontal view, the animal is rotated to the left; with respect to the animal's body, to the right. The dotted line corresponds to line R.





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