Eye position predicts what number you have in mind

condensation and de-condensation, mitotic spindle morphogenesis, and nuclear envelope assembly. Ok, but I've heard you can't image Xenopus embryos? Actually, Xenopus is great for imaging in cell biology because the cells of the embryo are unusually big at diameters of over 30 µm. If Xenopus is so widely used, why haven't I heard of it? Well, Xenopus has diverse applications, and so people using them have tended to associate based on scientific interests rather than the organism. This has meant that Xenopus has lagged somewhat in terms of resource development, but that's changing now. Genome sequencing is underway for both X. laevis and X. tropicalis, an effort has been launched to build a Xenopus ORFeome for large-scale functional studies and Xenbase, the Xenopus model organism database, is expanding rapidly. You might not have heard about it, but there's a good chance that someone's using Xenopus just down the hall. An in vivo chemical library screen in Xenopus tadpoles reveals novel pathways involved in angiogenesis and lymphangiogenesis. (2007). A positive feedback mechanism governs the polarity and motion of motile cilia. Nature 447, 97–101. position. Saccades and blink artifacts were detected and removed with an interactive computer program on the basis of velocity and noise criteria. For each number, we computed the average horizontal and vertical eye position during the 500 msec interval before it was named. On the basis of consistent research showing that small numbers are associated with the left and upper parts of space and large numbers with the right and lower [3,4], we predicted that selecting a number smaller than the last would be anticipated by leftward (downward) changes in eye position. Similarly, shifts to a larger number would be accompanied by rightward (upward) changes in eye position. Our results show that both horizontal and vertical changes in eye position predicted the direction of the change in number magnitude well above the chance level of 50% To assess whether the size of the change in eye position predicted the size of the change in number, we performed a repeated-measures regression analysis for each individual participant [5]. Numerical distance (number 'n + 1' minus number 'n') was the dependent variable, and the corresponding changes of the horizontal and vertical eye position were used as predictors. Crucially, the individual regression weights for changes in horizontal (mean = 0.126, SE = 0.03, t(11) = 3.95, p < 0.002) and vertical eye …