Reply to Sader and Jones

Reply to Christopher M . Jones and Michael Niederweis

Proprioception versus motor outflow in timing: a reply to Jones.

Jones' point that the motor outflow hypothesis should be considered a rival to the proprioceptive feedback interpretation of the motor response timing data reviewed by Schmidt has potential merit. However, with no data ruling in favor of motor outflow over proprioceptive feedback for timing, and with other peripheral feedback channels (e.g., vision) known to be mechanisms for timing, the propri...

Reply to Jones and Crowe: Correcting mistaken views of sedimentary geology, Mn-oxidation rates, and molecular clocks.

Jones and Crowe (1) raise issues already addressed in our article (2) based on an inaccurate grasp of the literature and several logical misconceptions. The authors suggest that inputs we chose in our kinetic calculations are unsuitable because we used values only from the Black Sea. As described, we made an extremely conservative estimate because the Black Sea is the most rapid Mn-oxidizing en...

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The Authors’ Reply