{"id":11217,"date":"2025-04-21T13:07:24","date_gmt":"2025-04-21T11:07:24","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=11217"},"modified":"2025-04-24T10:07:28","modified_gmt":"2025-04-24T08:07:28","slug":"tba-nir-gov-lpt-seminar-8-04-2025-14h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/tba-nir-gov-lpt-seminar-8-04-2025-14h\/","title":{"rendered":"Mod\u00e8le de spin d\u2019Ising pour la prise de d\u00e9cision directionnelle et abstraite. &#8211; (Nir Gov \/ LPT \/ Seminar). &#8211; 29\/04\/2025, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px; background-color: #f18500;\">S\u00e9minaire LPT<\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Nir Gov <\/strong><\/span>(Institut Weizmann des Sciences)<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar LPT, 29\/04\/2025, 14H, 3R4, salle de conf\u00e9rence<\/span><br \/>\n<strong><br \/>\nSummary :<\/strong><br \/>\nHow animals make decisions on where to go ? how animal groups make such collective decisions ? We present a spin-based model for how animal groups and single animals make navigational decisions on their direction and speed. The model describes motion that is diffusive in the disordered phase, and run-and-tumble in the ordered phase.\u00a0The model predicts a series of trajectories and a hierarchy of bifurcations in the presence of multiple identical targets. The geometry of these bifurcations is affected by the angular dependence of the interactions between the spins that represent the different targets. These predictions are compared to observations in different animal species. This model presents a new approach to decision-making in animals on the move, and as a new class of deciding-active matter.<br \/>\nWe then extend this model to describe abstract decision-making in the brain, and show that its an extension of the well-known Drift-Diffusion Model (DDM) for decision-making. Specifically, we propose that near the critical regime of the order-disorder transition the dynamics have a run-and-tumble nature which endows the decision-making with certain advantages. Comparing to experiments on humans, we provide evidence that support the conclusion that the decision-making circuit in the\u00a0brain indeed resides near this transition line<\/p>\n<hr \/>\n<div class=\"leaflet-map WPLeafletMap\" style=\"height:300px; width:70%;\"><\/div><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMapShortcode() {\/*<script>*\/\nvar baseUrl = atob('aHR0cHM6Ly97c30udGlsZS5vcGVuc3RyZWV0bWFwLm9yZy97en0ve3h9L3t5fS5wbmc=');\nvar base = (!baseUrl && window.MQ) ?\n    window.MQ.mapLayer() : L.tileLayer(baseUrl,\n        L.Util.extend({}, {\n            detectRetina: 0,\n        },\n        {\"subdomains\":\"abc\",\"noWrap\":false,\"maxZoom\":18}        )\n    );\n    var options = L.Util.extend({}, {\n        layers: [base],\n        attributionControl: false\n    },\n    {\"zoomControl\":true,\"scrollWheelZoom\":true,\"doubleClickZoom\":true,\"fitBounds\":true,\"minZoom\":9,\"maxZoom\":18,\"maxBounds\":null,\"attribution\":\"<a href=\\\"http:\\\/\\\/leafletjs.com\\\" title=\\\"Une biblioth\\u00e8que JS pour des cartes interactives\\\">Leaflet<\\\/a>; \\u00a9 <a href=\\\"http:\\\/\\\/www.openstreetmap.org\\\/copyright\\\">OpenStreetMap<\\\/a> contributeurs\"},\n    {});\nwindow.WPLeafletMapPlugin.createMap(options).setView([43.560830727361,1.4672373725804],16);window.WPLeafletMapPlugin.createScale({});});<\/script>\n<script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMarkerShortcode() {\/*<script>*\/\nvar map = window.WPLeafletMapPlugin.getCurrentMap();\nvar group = window.WPLeafletMapPlugin.getCurrentGroup();\nvar marker_options = window.WPLeafletMapPlugin.getIconOptions({});\nvar marker = L.marker(\n    [0,0],\n    marker_options\n);\nvar is_image = map.is_image_map;\n    marker.setLatLng( map.getCenter() );\nif (marker_options.draggable) {\n    marker.on('dragend', function () {\n        var latlng = this.getLatLng();\n        var lat = latlng.lat;\n        var lng = latlng.lng;\n        if (is_image) {\n            console.log('leaflet-marker y=' + lat + ' x=' + lng);\n        } else {\n            console.log('leaflet-marker lat=' + lat + ' lng=' + lng);\n        }\n    });\n}\nmarker.addTo( group );\nmarker.bindPopup(window.WPLeafletMapPlugin.unescape('Salle de conf\u00e9rence (- B\u00e2timent 3R4)'));window.WPLeafletMapPlugin.markers.push( marker );\n        });<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Location : Seminar Room, 3R4<\/p>\n","protected":false},"author":5,"featured_media":11444,"template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[48,313,233],"class_list":["post-11217","tribe_events","type-tribe_events","status-publish","has-post-thumbnail","hentry","tribe_events_cat-events","tribe_events_cat-lpt","tribe_events_cat-seminars","cat_events","cat_lpt","cat_seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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