{"id":285193,"date":"2022-12-01T17:19:00","date_gmt":"2022-12-01T09:19:00","guid":{"rendered":"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54788-2\/"},"modified":"2024-11-20T11:12:37","modified_gmt":"2024-11-20T03:12:37","slug":"54788","status":"publish","type":"post","link":"https:\/\/www.um.edu.mo\/pt-pt\/news-and-press-releases\/campus-news\/detail\/54788\/","title":{"rendered":"The impact of behavioural addiction on the brain"},"content":{"rendered":"<p>Substance or behavioural addiction is not a personality flaw, but a brain problem. To study how gaming and gambling change the brain, members of the Centre for Cognitive and Brain Sciences (CCBS) at the University of Macau (UM) have analysed numerous brain scans of addicts over the past two years to inspire new approaches for the prevention and treatment of behavioural addiction.<\/p>\r\n<p>Gaming and Gambling Addiction<\/p>\r\n<p>At UM, Anise Wu, associate dean (research) of the Faculty of Social Sciences and professor in the Department of Psychology, is leading a research project titled \u2018The Neurocognitive Mechanisms of Gaming and Gambling Addictions\u2019. \u2018Addiction is our inability to stop doing something that can harm us,\u2019 says Prof Wu, a member of CCBS. \u2018When people try to stop their addictive behaviours, they may easily relapse because their brains have adapted to craving such behaviours.\u2019<\/p>\r\n<p>Prof Wu says there is a large body of research on addiction to substances such as drugs and alcohol, and in recent years there has also been a growing interest in behavioural addiction.Gambling addiction, also called gambling disorder or compulsive gambling, has long been included in formal disease classification systems, while gaming disorder, also known as gaming addiction, was not included in the International Classification of Diseases until the 72nd World Health Assembly in 2019. Many studies suggest that these two types of addiction are closely linked.<\/p>\r\n<p>Prof Wu adds that Macao is an ideal place to study gaming and gambling addiction given the city\u2019s long\u2010standing casino and entertainment industries. \u2018Our research project has two major goals: to study the neuroplasticity mechanisms underlying addiction, and to investigate the interplay of various environmental sensory influences on addictive behaviour,\u2019 she explains.<\/p>\r\n<p>A Hijacked Reward System in the Brain<\/p>\r\n<p>What can brain scans tell us about addiction? According to Prof Wu, the brain\u2019s reward system is involved in both substance and behavioural addiction, and the neurotransmitter dopamine plays an important role in this system. \u2018When you receive a stimulus, such as eating a dessert or winning a game, an area in the midbrain produces dopamine. Dopamine goes through neural signalling pathways to different areas of the brain to give us a feeling of satisfaction and create memory of that feeling,\u2019 she says. The reward system motivates us to eat, reproduce, and perform other vital tasks. \u2018Having lower levels of dopamine makes us lose motivation and concentration,\u2019 she adds.<\/p>\r\n<p>The problems come when we consume substances or engage in activities that cause a rapid and excessive production of dopamine. In the beginning, we may feel satisfied, but then connections between the neurons among our brain areas will be altered to make us accustomed to the stimulus from these substances and activities. The result is that we will crave more and more of the same stimulus just to keep the same level of satisfaction. \u2018Once the stimulus from the addictive substance or behaviour stops, the addicts become depressed and would have many other health problems,\u2019 she says.<\/p>\r\n<p>In 2020, Prof Wu\u2019s team launched a pilot project. In a preliminary study on poker games, the team found that the brain\u2019s reward system was activated when risky decisions were made and won. Compared to healthy individuals, people with repetitive gambling behaviours showed a lower activation level in the reward system. This could explain why people with addictions seek more and stronger stimuli than others.<\/p>\r\n<p>The researchers also found that certain brain areas associated with the reward system were activated in addicted gamblers when they were waiting for the outcome of a bet, a response not observed in other people\u2019s brains. \u2018This may mean that addicts crave not only for the rewards of a bet, but also the process of betting and waiting for a potentially rewarding outcome,\u2019 says Prof Wu.<\/p>\r\n<p>Exploring New Ways to Prevent and Treat Addiction<\/p>\r\n<p>In early 2021, Prof Wu\u2019s team, in collaboration with the S.K.H. Macau Social Services Coordination Office, began to collect data and recruit people with online gaming or gambling habits and others for the research project. The brains of the research participants were scanned with a functional magnetic resonance imaging system (fMRI, a technique that measures brain activity by detecting blood flow) while they performed a range of decision\u2010making tasks. Interviews and questionnaires were conducted to understand the differences in cognitive functions such as decision\u2010making and inhibitory control among people with different levels of addiction.<\/p>\r\n<p>Prof Wu expects that most participants will have their brains scanned multiple times over the two\u2010year data collection period, so that researchers can understand how gaming and gambling addiction evolve and identify biomarkers that can potentially be used to determine the level of addiction. Researchers also used eye trackers and other tools to see if visual stimuli (e.g. different levels of lighting and different ways to display previous gambling results), sounds, and smells in the environment where people play games or gamble have different impacts on the development of behavioural addiction.<\/p>\r\n<p>As the gambling industry continues to grow rapidly across the Asia\u2010Pacific, online gambling and gaming are also becoming more common worldwide. Prof Wu therefore believes that the research project will not only benefit the local community, but also provide useful data for experts and institutions around the world. Through this project, the research team has established a long\u2010term partnership with the S.K.H. Macau Social Services Coordination Office. They not only recruit participants for the study, but also have plans for knowledge sharing and collaboration to further develop community education programmes and intervention services.<\/p>\r\n<p>By comprehensively understanding and showing how behavioural addiction changes the brain, the research team also hopes to help those affected recognise that addiction is the result of a variety of complex factors, and it does not represent a bad personality. \u2018Behavioural addiction is a chronic disease that affects the brain. Just like those with other illnesses, people with behavioural addiction have a lot of ways to seek professional treatment to improve their lives,\u2019 says Prof Wu.<\/p>\r\n<p>Chinese &amp; English Text \/ Davis Ip<br \/>\r\nPhoto \/ Jack Ho, with some provided by the interviewee<\/p>\r\n<p>Source: UMagazine ISSUE 26<\/p>\r\n<p>Related articles:\u00a0<\/p>\r\n<p>1.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54789\/\">Multidisciplinary Efforts to Unlock the Brain\u2019s Secrets<\/a><\/p>\r\n<p>2.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54785\/\">Multilingualism and the Brain\u2019s Executive Functions<\/a><\/p>\r\n<p>3.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54784\/\">Mapping the Brain Network to Explore Higher-level Cognitive Functions<\/a><\/p>\r\n<p>4.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54783\/\">Turning Thoughts into Actions with Brain-Computer Interfaces<\/a><\/p>\r\n<p>5.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54782\/\">The Links between Gut and Neurocognitive Disorders<\/a><\/p>\r\n<p>6.\u00a0<a href=\"https:\/\/www.um.edu.mo\/news-and-press-releases\/campus-news\/detail\/54781\/\">Neural Mechanisms of Early Brain Development<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Substance or behavioural addiction is not a personality flaw, but a brain problem. To study how gaming and gambling change the brain, members of the Centre for Cognitive and Brain&#8230;<\/p>\n","protected":false},"author":1,"featured_media":285345,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[],"class_list":["post-285193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-campus-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The impact of behavioural addiction on the brain | Universidade de Macau<\/title>\n<meta name=\"description\" content=\"Universidade de Macau: Uma universidade abrangente p\u00fablica de n\u00edvel internacional fundada em 1981\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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