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Short Term Effects of Diet on Cognitive Performance

Short Term Effects of Diet on Cognitive Performance. Steele Taylor jstaylor@uvm.edu www.uvm.edu/~jstaylor/AcademicExcellence. Giuseppe Arcimboldo, Summer , 1573, Louvre Museum, Paris. The Institute of Medicine: Committee on Military Nutrition Research.

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Short Term Effects of Diet on Cognitive Performance

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  1. Short Term Effects of Diet on Cognitive Performance Steele Taylor jstaylor@uvm.edu www.uvm.edu/~jstaylor/AcademicExcellence Giuseppe Arcimboldo, Summer, 1573, Louvre Museum, Paris

  2. The Institute of Medicine: Committee on Military Nutrition Research

  3. http://img.tfd.com/MosbyMD/thumb/vagus_nerve.jpg

  4. The Brain: “Selfish and Snobbish” • ≈2% of Overall Body Mass • 20-25 % of Resting Energy Expenditure • Pure Reliance on Glucose (normally) • Negligible Energy Reserves • No weight loss during starvation http://www.ipmc.cnrs.fr/~duprat/neurophysiology/images/brain2.jpg

  5. Hippocampus: “Librarian of the Brain” http://www.bpl.lib.me.us/reference/images/librarian.gif http://www.brainconnection.com/med/medart/l/hippocampus.jpg http://en.wikipedia.org/wiki/File:Gray748.png Memory Storage and Retrieval Navigation of Outer and Inner Space

  6. Baseline glucose supply may not keep up with the demands of highly active areas of the brain… http://berkeley.edu/news/media/releases/2000/11/brain/composite_2.jpg

  7. Glucose Tolerance and Glycemic Indices http://www.diabetic-diet-secrets.com/images/stories/gi_graph.gif http://www.solfi.com.do/images/glycemicindex.gif • Be Careful – Glycemic Index ≠ ΔBlood Glucose… • Individual Variations • Overall Composition of Meal • Food Preparation

  8. Depending on the length of the task, you can get away with a higher glycemic-index meal… Benton et al. .The delivery rate of dietary carbohydrates affects cognitive performance in both rats and humans.Psychopharmacology (Berl). 2003 Feb;166(1):86-90. Epub 2002 Dec 12.

  9. The Post-Lunch Dip http://www.nhtsa.dot.gov/

  10. “Neither Hungry Nor Full” http://images.thescientist.com/content/figures/images/yr2003/oct06/ghrelin.jpg

  11. Reward Yourself The Precursor Control Hypothesis: The Diffuse Serotonin System: http://www.flyfishingdevon.co.uk/salmon/year1/psy128anxiety.htm http://www.cnsforum.com/imagebank/item/Neuro_path_SN/default.aspx • Moderate Exercise • High carbohydrate vs. protein meal

  12. 30 Hours of Energy!

  13. Caffeine: • Multiple sites of action to generate CNS stimulation and alter metabolism • Taurine • Protects electrically excitable tissues • Prevents central and local fatigue • CDP-Choline • Precursor control of acetylcholine • N-Acetyl L-Tyrosine • Precursor control of dopamine and norepinephrine • L-Phenylalanine → phenethylamine • Operates like a weak amphetamine to sustain the activity of dopamine and norepinephrine

  14. Short Term Effects of Diet on Cognitive Performance Steele Taylor jstaylor@uvm.edu www.uvm.edu/~jstaylor/AcademicExcellence Giuseppe Arcimboldo, Summer, 1573, Louvre Museum, Paris

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