Average voxel-wise non-displaceable binding potential (BPND) maps superimposed on MRI images in sagittal view. Data are presented for [11C]carfentanil BPND of the 5 minipigs imaged at baseline, after initial exposure to sucrose and after 12 days of sucrose exposure (top row). [11C]carfentanil BPND of all 7 minipigs imaged at baseline and after 12 days of sucrose access are presented in the middle row. [11C]raclopride BPND of all 7 minipigs imaged at baseline and after 12 days of sucrose access are shown in the bottom row. Note that the color scale is exponential to highlight the [11C]raclopride BPND in extrastriatal regions.
New research in pigs finds that sugar intake alters the reward-processing circuitry of the brain in a similar way to addictive drugs.
Whenever we learn something new or experience something pleasurable, our brain’s reward system becomes activated. With the help of natural brain chemicals, several brain areas communicate with each other to help us learn and repeat behaviors that improve our knowledge and well-being.
Relying heavily on the neurotransmitter dopamine, the reward system helps explain several quintessential human experiences, such as falling in love, sexual pleasure, and enjoying time with friends.
What happens when we give up?
Unless you work in health insurance, you probably don’t know much about the International Classification of Diseases. But you’re probably hearing a lot about the ICD lately: it was just up for review for the first time since 1990, and that means a whole slew of changes to reflect how physicians of the world now think about diseases.
CBT aims to uncover unhelpful or problematic ways of thinking in order to change unwanted or unhealthy behaviors.
BY LISA J. SMITH
You’re a smart, well-rounded, and well-educated person, right? So why is it you keep making the same poor choices over and over again? Why do relationships in your life suffer because of poor communication? Why do you sometimes feel as though you have no control in your life? It could be because your inner child is in the driver’s seat, and if you’ve ever seen a six-year-old drive, well, that says it all.
Já faz um certo tempo que é considerada a ideia de que as pessoas que ocasionalmente fumam maconha podem, em breve, se tornarem viciadas.
New research by the University at Buffalo Research Institute on Addictions has identified a key mechanism in how aerobic exercise can help impact the brain in ways that may support treatment — and even prevention strategies — for addiction.