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. 2018 Mar 22;9:384. doi: 10.3389/fpsyg.2018.00384

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Copyright © 2018 Aviram and Soffer-Dudek.

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) and the copyright owner 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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Distribution of the five frequency items of the FILD – Each shade represents a point on the frequency scale used in the FILD. FILD, Frequency and Intensity Lucid Dreaming questionnaire; Momentary, frequency of momentary LD; Prolonged, frequency of prolonged LD; Spontaneous, frequency of LD generated spontaneously; Attempt, frequency of attempts to deliberately induce LD; Success, frequency of successfully inducing LD, applicable only to those who have attempted to deliberately induce LD.