{"id":3166,"date":"2019-10-29T15:40:00","date_gmt":"2019-10-29T22:40:00","guid":{"rendered":"https:\/\/dornsife.usc.edu\/news\/stories\/cant-stop-putting-your-hand-in-the-candy-dish-scientists-may-have-found-why\/"},"modified":"2023-04-19T11:06:15","modified_gmt":"2023-04-19T18:06:15","slug":"impulse-control-obesity-drug-abuse","status":"publish","type":"post","link":"https:\/\/dornsife.usc.edu\/news\/stories\/impulse-control-obesity-drug-abuse\/","title":{"rendered":"Can\u2019t stop putting your hand in the candy dish? Scientists may have found why"},"content":{"rendered":"\n\n\n    \n            \n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n<div class=\"inner-wrapper\">\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2023\/04\/story-3102-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2023\/04\/story-3102-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Can\u2019t stop putting your hand in the candy dish? Scientists may have found why\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n  \n      <div class=\"image-caption\">\n          \n<div class=\"f--field f--description\">\n\n    \n  Research has indicated that melanin-concentrating hormone is linked with appetite for food or drugs, but scientists had not previously understood how it affects impulse control. (Photo: iStock.)\n\n\n<\/div>\n    <\/div>\n  \n  <div class=\"text-wrapper\">\n          <nav aria-label=\"Breadcrumb\" class=\"breadcrumbs\">\n        <ul>\n                      <li><a href=\"\/news\/stories\/\">News<\/a><\/li>\n                      <li><a href=\"\/news\/stories\/\/?category=faculty\">Faculty<\/a><\/li>\n                  <\/ul>\n      <\/nav>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Can\u2019t stop putting your hand in the candy dish? Scientists may have found why<\/h1>\n\n\n<\/div>\n    \n          <div class=\"subtitle\">\n            \n<div class=\"f--field f--description\">\n\n    \n  A USC Dornsife-led team of scientists have zeroed in on the brain circuit that regulates impulsive behavior, which could advance scientific understanding of behavioral issues from obesity to drug abuse. <strong>[1 min read]<\/strong>\n\n\n<\/div>\n      <\/div>\n    \n           <strong class=\"author-field\"><span >By<\/span><a href=\"mailto:communication@dornsife.usc.edu\">Emily Gersema<\/a><\/strong>\n    \n          <span class=\"post-date-field\">October 29, 2019<\/span>\n      <\/div>\n<\/div>\n\n\n  <\/div><\/div>\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--social-share \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--social-share\"\n    \n      >\n\n    \n  <div class=\"content-wrapper\">\n    <span class=\"a2a_kit a2a_kit_size_32 addtoany_list\" style=\"line-height: 32px;\">\n      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fill-rule=\"evenodd\" transform=\"translate(-6 -9)\"\/><\/svg>\n            <\/span>\n            <span class=\"a2a_label visually-hidden\">Email<\/span>\n          <\/a>\n                  <\/span>\n  <\/div>\n\n  <\/div><\/div>\n  \n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>A national team of scientists has identified a circuit in the brain that appears to be associated with psychiatric disorders including overeating, gambling, drug abuse and even Parkinson&rsquo;s disease.<\/p>\n<p>&ldquo;We discovered the brain connections that keep impulsivity in check,&rdquo; said neuroscientist <a href=\"https:\/\/dornsife.usc.edu\/cf\/bisc\/faculty_display.cfm?Person_ID=1043599\" target=\"_blank\">Scott Kanoski<\/a>, associate professor of biological sciences at the USC Dornsife College of Letters, Arts and Sciences.<\/p>\n<p>The study was published Oct. 29 in the journal <a href=\"https:\/\/www.nature.com\/articles\/s41467-019-12895-y\" target=\"_blank\"><i>Nature Communications<\/i><\/a>.<\/p>\n<p>Research has indicated that melanin concentrating hormone (MCH) is linked with appetite for food or drugs, but until now scientists hadn&rsquo;t fully understood how it affects impulse control.<\/p>\n<p>In the current study, the scientists conducted a series of studies on rats that demonstrated that impulsivity is a separate function from hunger and food motivation, and tested lowering and raising the levels of MCH in the rats&rsquo; brains.<\/p>\n<p>Based on anatomical brain scans, the scientists were able to identify a neural pathway for impulse control. Neurons in the lateral hypothalamus signal MCH to other neurons in the ventral hippocampus, an area of the brain associated with emotions, memory and inhibitory control.<\/p>\n<p>Kanoski said the next step is for scientists to map the link between the circuit for impulse control and the brain&rsquo;s rewards system. Such work could eventually lead to the development of better-targeted treatments for psychiatric disorders in which impulsivity is a core issue.<\/p>\n<p><a href=\"https:\/\/news.usc.edu\/162421\/impulsivity-control-brain-research-melanin-concentrating-hormone\/\" target=\"_blank\"><i>See USC News for the full story &gt;&gt;<\/i><\/a><i> <\/i><\/p>\n<hr>\n<p><strong>About the study<\/strong><\/p>\n<p>The study&rsquo;s lead author was Emily Noble, formerly of USC Dornsife and now at the University of Georgia in Athens. Other collaborators were Zhuo Wang and Daniel Holschneider of Keck Medicine of USC as well as USC researchers Elizabeth Davis, Clarissa Liu, Andrea Suarez, Lindsey Schier and Linda Tsan.<\/p>\n<p>The co-authors also included University of Illinois (Chicago) researchers Lauren Stein and Matthew Hayes; Michigan State University researchers Lauren Raycraft and Alexander Johnson; University of Pennsylvania researcher Ted Hsu; and University of Washington researcher Martin Darvas.<\/p>\n<p>The work was supported largely by grants from the National Institutes of Health.<\/p>\n<p>&nbsp;<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A USC Dornsife-led team of scientists have zeroed in on the brain circuit that regulates impulsive behavior, which could advance scientific understanding of behavioral issues from obesity to drug abuse. <strong>[1 min read]<\/strong><\/p>\n","protected":false},"author":0,"featured_media":3169,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[106,632],"class_list":["post-3166","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faculty","tag-neuroscience","tag-obesity"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Can\u2019t stop putting your hand in the candy dish? Scientists may have found why<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dornsife.usc.edu\/news\/stories\/impulse-control-obesity-drug-abuse\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Can\u2019t stop putting your hand in the candy dish? Scientists may have found why\" \/>\n<meta property=\"og:description\" content=\"A USC Dornsife-led team of scientists have zeroed in on the brain circuit that regulates impulsive behavior, which could advance scientific understanding of behavioral issues from obesity to drug abuse. 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