• Popular
    • Medicine
    • Radiology
    • Cardiology
    • Surgery
    • Nanomedicine
    • Military Medicine
    • Rehab
  • Categories
    • Exclusive
    • A-D
      • Anesthesiology
      • Art
      • Cardiac Surgery
      • Cardiology
      • Critical Care
      • Dentistry
      • Dermatology
      • Diagnostics
    • E-I
      • Emergency Medicine
      • ENT
      • Genetics
      • Geriatrics
      • GI
      • Informatics
    • M-N
      • Medicine
      • Military Medicine
      • Nanomedicine
      • Net News
      • Neurology
      • Neurosurgery
      • Nuclear Medicine
    • O-P
      • Ob/Gyn
      • Oncology
      • Ophthalmology
      • Orthopedic Surgery
      • Pathology
      • Pediatrics
      • Plastic Surgery
      • Psychiatry
      • Public Health
    • R-V
      • Radiation Oncology
      • Radiology
      • Rehab
      • Reproductive Medicine
      • Space Medicine
      • Sports Medicine
      • Surgery
      • Thoracic Surgery
      • Urology
      • Vascular Surgery
  • SUBSCRIBE
  • Submit PR
  • About
  • Follow
    • Facebook
    • Twitter
    • Linkedin
    • Youtube
    • Instagram
    • RSS
  • Submit PR
  • Log in
Medgadget
Medgadget
  • Popular
    • Medicine
      Cancer Organoids Offer Insights into Treatment Outcomes

      Cancer Organoids Offer Insights into Treatment Outcomes

      Cell Culture Chamber Mimics Mechanical States of Disease

      Cell Culture Chamber Mimics Mechanical States of Disease

      Laser-Based Breath Analysis Detects COVID-19 Infection

      Laser-Based Breath Analysis Detects COVID-19 Infection

      Technique Reveals 3D Genome Interactions

      Technique Reveals 3D Genome Interactions

    • Radiology
      Implanted Ultrasound Lets Chemo Access Brain

      Implanted Ultrasound Lets Chemo Access Brain

      Wearable Ultrasound Measures Tissue Stiffness Under Skin

      Wearable Ultrasound Measures Tissue Stiffness Under Skin

      Brain Decoder Spells Out Thoughts

      Brain Decoder Spells Out Thoughts

      RF Technology for Health Monitoring: Michael Leabman, CTO of Movano Health

      RF Technology for Health Monitoring: Michael Leabman, CTO of Movano Health

    • Cardiology
      Cell Culture Chamber Mimics Mechanical States of Disease

      Cell Culture Chamber Mimics Mechanical States of Disease

      Chest Wearable Provides Key Heart Measurements

      Chest Wearable Provides Key Heart Measurements

      Vein on a Chip Includes Flexible Valves

      Vein on a Chip Includes Flexible Valves

      Knitted Glove Massages the Hand to Treat Edema

      Knitted Glove Massages the Hand to Treat Edema

    • Surgery
      Automated Computer Assistant for Kidney Transplant Rejection Diagnostics: Interview with Study Authors

      Automated Computer Assistant for Kidney Transplant Rejection Diagnostics: Interview with Study Authors

      Soft Robotic Electrode Enables Minimally Invasive Placement

      Soft Robotic Electrode Enables Minimally Invasive Placement

      Wound Dressing Detects Infection, Changes Color

      Wound Dressing Detects Infection, Changes Color

      Stimulating Wounds with Electricity for Rapid Healing

      Stimulating Wounds with Electricity for Rapid Healing

    • Nanomedicine
      Bottlebrush Nanoparticles Deliver Immunostimulatory Drugs

      Bottlebrush Nanoparticles Deliver Immunostimulatory Drugs

      Nanoparticles Deliver mRNA Therapy to the Lungs

      Nanoparticles Deliver mRNA Therapy to the Lungs

      Nanoparticles Get Lymphatic Vessels Pumping

      Nanoparticles Get Lymphatic Vessels Pumping

      Bottlebrush Particle for Synergistic Drug Combinations

      Bottlebrush Particle for Synergistic Drug Combinations

    • Military Medicine
      Wearable Can Take Multiple Sweat Samples

      Wearable Can Take Multiple Sweat Samples

      Wound Dressing Detects Infection, Changes Color

      Wound Dressing Detects Infection, Changes Color

      Device Measures Hemoglobin More Accurately in Dark Skin

      Device Measures Hemoglobin More Accurately in Dark Skin

      Fingertip Sensor Measures Lithium Levels in Sweat

      Fingertip Sensor Measures Lithium Levels in Sweat

    • Rehab
      Brain Decoder Spells Out Thoughts

      Brain Decoder Spells Out Thoughts

      Knitted Glove Massages the Hand to Treat Edema

      Knitted Glove Massages the Hand to Treat Edema

      Empowering Stroke Survivors: Interview with Kirsten Carroll, CEO at Kandu Health

      Empowering Stroke Survivors: Interview with Kirsten Carroll, CEO at Kandu Health

      Smart Walking Stick for Visually Impaired People

      Smart Walking Stick for Visually Impaired People

  • Categories
    • Exclusive
    • A-D
      • Anesthesiology
      • Art
      • Cardiac Surgery
      • Cardiology
      • Critical Care
      • Dentistry
      • Dermatology
      • Diagnostics
    • E-I
      • Emergency Medicine
      • ENT
      • Genetics
      • Geriatrics
      • GI
      • Informatics
    • M-N
      • Medicine
      • Military Medicine
      • Nanomedicine
      • Net News
      • Neurology
      • Neurosurgery
      • Nuclear Medicine
    • O-P
      • Ob/Gyn
      • Oncology
      • Ophthalmology
      • Orthopedic Surgery
      • Pathology
      • Pediatrics
      • Plastic Surgery
      • Psychiatry
      • Public Health
    • R-V
      • Radiation Oncology
      • Radiology
      • Rehab
      • Reproductive Medicine
      • Space Medicine
      • Sports Medicine
      • Surgery
      • Thoracic Surgery
      • Urology
      • Vascular Surgery
  • SUBSCRIBE
  • Submit PR
  • About
  • Log in
  • Submit PR
  • Follow
    • Facebook
    • Twitter
    • Linkedin
    • Youtube
    • Instagram
    • RSS

Obesity, Gender, and The Quirky Human Brain

January 20th, 2009 Medgadget Editors News

At the Brookhaven National Laboratory scientists are learning why women have more difficulty controlling their appetite. Turns out that men seem to be able to actually change how their brains respond to tasty foods, while women generally lack the ability.
From Brookhaven NL:

The scientists used positron emission tomography (PET) scanning to monitor brain activity in 13 female and 10 male volunteers. In this method, a form of glucose “tagged” with a radioactive tracer molecule is injected into the blood stream while subjects lie in the PET scanner. The scanner tracks the tracer’s signal to monitor the uptake and use of the glucose by various regions of the brain. All study subjects were of normal body weight and had fasted for nearly 20 hours before each of three separate scans, performed in random order.
On one scan day, subjects were presented with their favorite foods — from bacon-egg-and-cheese sandwiches to pizza, cinnamon buns, barbecue ribs, and chocolate cake — warmed, if appropriate, to enhance the enticing aromas and taste. During the scan, subjects were asked to smell, taste, observe, and react to the food, but not eat it. On another day, they were instructed to inhibit their desire for food prior to being tempted with the same foods. A control scan with no food was performed on another day.
The volunteers were also asked to rate the foods and describe their feelings of hunger and their desire to eat during the scans when food was presented.
In both men and women, a variety of brain areas associated with emotional regulation, conditioning, and motivation “lit up,” indicating increased metabolic activity in those regions, in response to the tempting foods when compared with the no-food scans — a finding consistent with earlier work using the same setup at Brookhaven Lab. When asked to inhibit their response to food, both men and women described themselves as less hungry and less interested in eating than when they weren’t trying to inhibit their response. But only the men showed a relative decrease in activity in the food-activated brain regions during the scan when they were asked to inhibit their response.

Press release: Control Your Hunger? Study Shows Men Can, Women Can’t
Image: Each brain image shows the change in brain metabolism when subjects were asked to inhibit their response to food during food stimulation compared with when they were not told to inhibit their response. Two brain sections at different levels of the brain are shown for each group (women, men, and women vs. men). Top row, women: No color indicates that women had no significant differences in brain activity between the two conditions. Middle row, men: Blue colored areas were significantly less active when men were told to inhibit their response to food than they were without inhibition. Third row, women vs. men: Orange color indicates areas where men showed greater decrements with inhibition than women. These brain regions are involved in emotional regulation, conditioning, and the motivation to eat.

Medgadget Editors

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

Sponsored

Packaging Compliance Labs (PCL) Celebrates Site Expansion in Grand Rapids, MI

Novel Approach to Assessing Lung Function Enables Improved Detection, Diagnosis and Treatment Decisions in Subject Exposed to Military Burn Pits

U.S. Patent Office Grants Additional Patent Protection For  Exoskeleton Focal-Force Angioplasty Platform

U.S. Patent Office Grants Additional Patent Protection For Exoskeleton Focal-Force Angioplasty Platform

Reliefband® State of Nausea Study Reveals More Than Three-Quarters of Americans Are Prevented from Enjoying Life As a Result of Regular Nausea

Reliefband® State of Nausea Study Reveals More Than Three-Quarters of Americans Are Prevented from Enjoying Life As a Result of Regular Nausea

New AI-Powered Voice Controls Streamline Ultrasound Imaging with All Clarius Handheld Systems

New AI-Powered Voice Controls Streamline Ultrasound Imaging with All Clarius Handheld Systems

interviews & reviews
Automated Computer Assistant for Kidney Transplant Rejection Diagnostics: Interview with Study Authors

Automated Computer Assistant for Kidney Transplant Rejection Diagnostics: Interview with Study Authors

RF Technology for Health Monitoring: Michael Leabman, CTO of Movano Health

RF Technology for Health Monitoring: Michael Leabman, CTO of Movano Health

AI’s role in Healthcare: Exclusive Interview with Catherine Estrampes, President & CEO at GE Healthcare

AI’s role in Healthcare: Exclusive Interview with Catherine Estrampes, President & CEO at GE Healthcare

Digital Self-Neuromodulation Therapy for PTSD: Interview with Oded Kraft, CEO of GrayMatters Health

Digital Self-Neuromodulation Therapy for PTSD: Interview with Oded Kraft, CEO of GrayMatters Health

Levels Is Making Metabolism and Blood Glucose Tracking Accessible To Everyone

Levels Is Making Metabolism and Blood Glucose Tracking Accessible To Everyone

Imagene Profiles Cancer Biomarkers in Real Time

Imagene Profiles Cancer Biomarkers in Real Time

Empowering Stroke Survivors: Interview with Kirsten Carroll, CEO at Kandu Health

Empowering Stroke Survivors: Interview with Kirsten Carroll, CEO at Kandu Health

  • Subscribe
  • Contact us
  • Submit
  • About
  • Back to top
Medgadget

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

  • About
  • Editorial policies
  • Contact
  • Terms of Service
  • Privacy
  • Submit press release
  • Advertise
© Medgadget, Inc. All rights reserved. | The Medical Revolution Will Be Blogged.
Please support this website by adding us to your whitelist in your ad blocker. Ads are what helps us bring you premium content! Thank you!
  • Facebook
  • Twitter
  • LinkedIn
  • Reddit
  • Email