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. 2019 Jul 30;13:35. doi: 10.3389/fnint.2019.00035

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Copyright © 2019 Weiss, Hajnal, Czaja and Di Lorenzo.

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(s) 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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Response and tuning characteristics of NTS cells. (A) Proportion of NTS cells with various patterns of firing with respect to taste stimulus presentation and licking behavior. There is a larger proportion of taste-responsive cells in DIO rats compared to lean rats and a smaller proportion of anti-lick cells. (B) Tuning characteristics of taste-responsive NTS cells in lean and DIO rats. Shown is the proportion of cells that respond to one, two, three or four traditional tastants (0.1 M sucrose, 0.05 M NaCl, 0.016 M citric acid, and 0.002 M caffeine). Cells with 5-lick or lick-by-lick responses are included. NTS cells in DIO rats are generally more narrowly tuned than NTS cells in lean rats.