{"id":86,"date":"2026-02-18T20:22:22","date_gmt":"2026-02-18T20:22:22","guid":{"rendered":"http:\/\/behavior-tools.com\/?page_id=86"},"modified":"2026-02-18T20:22:22","modified_gmt":"2026-02-18T20:22:22","slug":"thigmotaxis-assay-en","status":"publish","type":"page","link":"https:\/\/behavior-tools.com\/index.php\/thigmotaxis-assay-en\/","title":{"rendered":"THIGMOTAXIS ASSAY (EN)"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Thigmotaxis (Edge Preference) Assay in Zebrafish<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Scientific Overview<\/h2>\n\n\n\n<p>Thigmotaxis refers to the tendency of zebrafish (Danio rerio) to remain close to tank walls, reflecting anxiety-like behavior and risk avoidance.<\/p>\n\n\n\n<p>It is often quantified in open-field aquatic paradigms.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Historical Background<\/h2>\n\n\n\n<p>Derived from rodent open field models.<\/p>\n\n\n\n<p>Zebrafish validation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blaser &amp; Gerlai, 2006. <em>Behavioural Brain Research<\/em><br>DOI: 10.1016\/j.bbr.2006.02.005<\/li>\n\n\n\n<li>Maximino et al., 2010.<br>DOI: 10.1016\/j.bbr.2009.12.031<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Neurobiological Basis<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Serotonergic modulation<\/li>\n\n\n\n<li>Cortisol-mediated stress axis<\/li>\n\n\n\n<li>Amygdala-like circuits<\/li>\n\n\n\n<li>Dopaminergic regulation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Scientific Objectives<\/h2>\n\n\n\n<p>Measure:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Time spent near walls<\/li>\n\n\n\n<li>Center entries<\/li>\n\n\n\n<li>Center latency<\/li>\n\n\n\n<li>Anxiety index<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Standardized Experimental Methodology<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Apparatus<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Square tank (20 \u00d7 20 cm)<\/li>\n\n\n\n<li>Virtual central vs peripheral zones<\/li>\n\n\n\n<li>5\u201310 minute recording<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Primary Endpoints<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>% Time in periphery<\/li>\n\n\n\n<li>Distance traveled<\/li>\n\n\n\n<li>Freezing episodes<\/li>\n\n\n\n<li>Thigmotaxis index<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Positive Controls<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diazepam \u2192 reduced edge preference<\/li>\n\n\n\n<li>Caffeine \u2192 increased edge preference<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Statistical Analysis<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zone preference comparison<\/li>\n\n\n\n<li>Repeated-measures ANOVA<\/li>\n\n\n\n<li>Anxiety index calculation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. Applications<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anxiety pharmacology<\/li>\n\n\n\n<li>Stress exposure models<\/li>\n\n\n\n<li>Environmental toxin testing<\/li>\n\n\n\n<li>Cortisol modulation studies<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Limitations<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tank geometry effects<\/li>\n\n\n\n<li>Locomotor confounds<\/li>\n\n\n\n<li>Lighting influence<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. OECD Regulatory Context<\/h2>\n\n\n\n<p>Potential adjunct behavioral endpoint in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>OECD TG 236<\/li>\n\n\n\n<li>Early Life Stage toxicity tests<\/li>\n<\/ul>\n\n\n\n<p>Not yet validated for regulatory decision-making.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">9. Key References<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blaser &amp; Gerlai, 2006. DOI: 10.1016\/j.bbr.2006.02.005<\/li>\n\n\n\n<li>Maximino et al., 2010. DOI: 10.1016\/j.bbr.2009.12.031<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Thigmotaxis (Edge Preference) Assay in Zebrafish Scientific Overview Thigmotaxis refers to the tendency of zebrafish (Danio rerio) to remain close to tank walls, reflecting anxiety-like behavior and risk avoidance. It is often quantified in open-field aquatic paradigms. 1. Historical Background Derived from rodent open field models. Zebrafish validation: 2. Neurobiological Basis 3. Scientific Objectives Measure: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-86","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/pages\/86","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/comments?post=86"}],"version-history":[{"count":1,"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/pages\/86\/revisions"}],"predecessor-version":[{"id":87,"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/pages\/86\/revisions\/87"}],"wp:attachment":[{"href":"https:\/\/behavior-tools.com\/index.php\/wp-json\/wp\/v2\/media?parent=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}