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. 2020 Feb 28;21(5):1649. doi: 10.3390/ijms21051649

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Functions modulated by 5-hydroxytryptamine (5-HT) in different species. (A) functions modulated related to motor activities and locomotion, (B) functions modulated related to sleep and circadian rhythms, (C) functions modulated related to sleep and circadian rhythms, (D) functions modulated related to social interactions, social status and aggressiveness, (E) functions modulated related to anxiety, (F) functions modulated related to mood, (G) functions modulated related to learning and memory.