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. 2019 Oct 7;23:2331216519878539. doi: 10.1177/2331216519878539

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© The Author(s) 2019

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 5. — The upper graphs represent the average PTCs (red triangles) and TTCs (black diamonds) for each masker frequency for each TTC and PTC group. The lower graphs represent individual differences between the TTC and PTC value for each masker frequency. A positive value suggests that the reference signal was more maskable than the tinnitus, and a negative value suggests that the tinnitus was more maskable than the reference signal.

PTC = psychophysical tuning curve; TTC = tinnitus tuning curve; SPL = sound pressure level.