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. 2014 Jan 9;7:107. doi: 10.3389/fnint.2013.00107

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Copyright © 2014 Lloyd, Medina, Hawk, Fosco and Richards.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Calculation of habituation rate (HR). (A) Data having different absolute rates of responding plotted as five equal duration epochs. (B) The same data with each epoch plotted as a percentage of total responding. The lines with arrows in plot (B) indicate the difference between the first epoch of the test session and the epoch with the lowest percentage of responding. This difference is divided by the time between the first epoch and the epoch with the lowest percentage of responding to produce the HR measure shown in plot (C). See text for details.