<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">The paper listed below models for the first time the identity of an odorant object as<br class="">semantic information and the onset/offset timing events as semantic timing.<br class=""><br class="">The Functional Logic of Odor Information Processing in the Drosophila Antennal Lobe<br class="">Aurel A. Lazar, Tingkai Liu, Chung-Heng Yeh,<br class="">PLoS Comput Biol 19(4): e1011043.<br class=""><a href="https://doi.org/10.1371/journal.pcbi.1011043" class="">https://doi.org/10.1371/journal.pcbi.1011043</a><br class=""><br class="">Author summary<br class="">A major challenge in the study of the Drosophila early olfactory sensory system is to<br class="">determine how an odorant object (the smell of a rose) is reliably identified in the face of<br class="">fluctuations of the concentration amplitude of the molecules within the odorant plume.<br class="">More fundamentally, the question arises how semantic information, often associated<br class="">with subjective perception, can be characterized. To address this challenge, we<br class="">leveraged the unique combinatorial odorant code of Drosophila and presented a formal<br class="">treatment of the identity of an odorant object as its semantic information (or semantics<br class="">for short). Grounded in the physiology of the fly brain, we identified the functional roles<br class="">played by Local Neurons in the fruit fly Antennal Lobe in the recovery of the semantics<br class="">and the onset/offset timing information (or semantic timing). Our model of the<br class="">Antennal Lobe circuit is built with a highly versatile canonical model of neural<br class="">computation - the differential Divisive Normalization Processor.<br class=""><br class="">Aurel<br class=""><a href="http://www.bionet.ee.columbia.edu" class="">http://www.bionet.ee.columbia.edu</a><div class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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