Tispol london sintef dmo master
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Brain maturation and risk behavior. The document discusses how the adolescent brain develops through processes like proliferation, pruning, myelination, and remodeling of dopamine and oxytocin systems. It notes that the limbic system, or "emotional brain", develops faster than the prefrontal cortex, or "thinking brain". This imbalance can contribute to increased impulsivity and risk-taking behavior during adolescence for some teens.
Tispol london sintef dmo master
- 1. Brain maturation and risk behavior TISPOL LONDON 6th. April 2009 Dagfinn Moe (dagfinn.moe@sintef.no) Senior Research Scientist SINTEF NORWAY
- 2. Inter- aktion The truth about the accident (What How Why) Road conditions Traffic situation Vehicle Neurobiology Sociology Psychology Human Factors
- 3. functional Magnetic Resonance Imaging (fMRI)
- 4. fMRI-group in Bergen 2008 The effect of alcohol on working memory (Gundersen, Gr端ner, Specht and Hugdahl-2008) BAC:0,19 BAC: 0,14 Sober BAC: 0,08
- 5. Gogtay, Giedd, et al. (2004) Proc. Natl. Acad. Sci. USA Maturation and learning
- 6. Adolescent brain development can be divided into four processes: (Giedd-2006,Toga-2006 Steinberg-2008) Proliferation Rapid growth of brain matter and new connections Pruning Cutting away of unused or unimportant connections Myelination Insulating of connections to make them faster and more stable Remodeling of the dopamin and oxytocin systems There is a redistribution of dopamine and oxytocin concentration around puberty
- 7. PRUNING AND MYELINATION building superhighways
- 9. Learning Memory Emotion THE LIMBIC SYSTEM EMOTIONAL BRAIN heaven and hell
- 10. Rate of Maturation adolescent emotional brain thinking brain Galvan et al 2006 Developmental Science
- 11. The battle between the emotional and the thinking brain
- 12. Risk driver profile safety belt drugs-speeding Criminal Men 18-25
- 13. Adolescence is generally a period of increased impulsivity and risk-taking behaviour, but some teens might be especially prone to engage in such behaviours.
Editor's Notes
- #8: These maps are a way to conceptualize a brain that is connection-rich, versus one that has connections pruned due to lack of use. The brain with many and varied connections, like the map on the left, has many ways of approaching goals and solving problems. The brain with fewer, and less strong connections, has limited choices, and it is slower in using those connections.