HOME >> MEDICINE >> NEWS
Sex Differences Found In Proportions Of Gray And White Matter In The Brain: Links To Differences In Cognitive Performance Seen

Head size correlates statistically with intelligence, a not-widely known fact - greater cranial volumes are linked to higher intelligence. The correlation, while small, has been reported in multiple studies. And because, on average, men's bodies are bigger than women's, their heads too are larger than women's. So, one might reasonably expect men to be more intelligent than women. This is not the case, however - men and women consistently score equally on intelligence tests. For neuroscientists, this paradox has long presented a puzzle. If head size correlates with intelligence, and women have smaller heads, why don't they have lower intelligence?

Researchers at the University of Pennsylvania Medical Center now report new findings that may help explain the conundrum: Women have a higher proportion of gray matter to cranial volume than men. Conversely, men have higher proportions of white matter and cerebrospinal fluid to cranial volume than women. Gray matter refers to the neuronal cell bodies and their dendrites, the short protrusions that communicate with immediately neighboring neurons in the brain. White matter refers to the longer axons, sheathed in a white fat called myelin, that reach out from neurons to more distant regions of the brain. Cerebrospinal fluid is the liquid in which the brain floats inside the head. Gray matter is where computation takes place, while white matter is responsible for communication between groups of cells in different areas of the brain.

"With these findings, we are beginning to get an explanation for the lack of intelligence disparity between men and women," says Ruben C. Gur, Ph.D., professor of psychology in psychiatry and lead author on the new study, which will appear in the May 15 issue of the Journal of Neuroscience. "Women have a higher percentage of tissue devoted to computation than men. Men have a greater proportion of tissue assigned to the transfer of information between distant regi
'"/>

Contact: Franklin Hoke
hokef@mail.med.upenn.edu
215-349-5659
University of Pennsylvania School of Medicine
15-May-1999


Page: 1 2 3

Related medicine news :

1. Differences in cancer screening rates reported
2. Differences in brain function make it hard for people with schizophrenia to interpret other peoples feelings
3. Differences in human brain chemistry may account for different responses to stimulants
4. ALA/ATS Meeting Explores Gender Differences In Smoking And Lung Transplant Outcomes And Heart Attack Risk From Asthma Medication
5. Differences In Brain Function Found For Attention Deficit Disorder
6. Study Reveals Possible Clue For Racial Differences In Prevalence Of High Blood Pressure
7. Can you read my mind? W.M. Keck Foundation funds innovative brain research at Carnegie Mellon
8. Top honor for head of Epilepsy Foundation
9. The Larry King Cardiac Foundation presents The Changing Face of Heart Disease on Feb. 2
10. Prentiss Foundation awards $5 million to University Hospitals
11. Endocrine Society and Hormone Foundation call for increased research

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/10/2019)... ... 2019 , ... AltMed Florida , one of the fastest growing Medical ... grand opening of its second MÜV™ Medical Cannabis Dispensary on the First Coast – ... Jacksonville Beach. , Located at Beach Plaza Shopping Center at the corner of Beach ...
(Date:10/8/2019)... ... 2019 , ... What unique insights can three former Surgeons General of the ... the nation? That question will be answered at ICAA 2019: Shaping the Future of ... event will take place October 10-12, 2019, at the Gaylord Palms Resort and Convention ...
(Date:10/8/2019)... ... October 08, 2019 , ... Drs. ... help patients with missing teeth restore their smiles with long-lasting dental implants ... relies on advanced i-CAT® 3D Cone Beam CT imaging, X-Guide™ software and Yomi® ...
(Date:10/8/2019)... ... October 08, 2019 , ... METAvivor Research and Support Inc., ... the launch of its Stage IV Stampede campaign. The campaign will commence with two ... that will include an advocacy boot camp, a march, a Die-In (hosted by partner ...
(Date:10/8/2019)... ... , ... On November 9, 2019, husband and wife dental team, Dr.’s Michael and Azita Mansouri, ... marks the ninth consecutive year that Mansouri Family Dental Care & Associates has ... event has always had a great turnout, serving over 300 people in a single day ...
Breaking Medicine News(10 mins):
(Date:10/9/2019)... ... October 09, 2019 , ... The 11th annual ... Yoga Science and AMI Meditation for the relief and prevention of physician burnout. ... October 22-26, 2019 at the Cranwell Resort and Spa in Lenox, Massachusetts, is ...
(Date:10/8/2019)... ... ... Help.org, a trusted online resource for individuals who struggle with addiction and their loved ... guide recognizes the top 17 rehab facilities based on cost, treatment options, location, accompanying ... the leading cause of death among people under age 50. In Boston, deaths related ...
(Date:10/8/2019)... ... October 08, 2019 , ... Dr. ... raise awareness of their advanced dental and medical training to offer medically ... welcome patients with heart conditions, diabetes, and other systemic concerns for dental implants ...
Breaking Medicine Technology:
Cached News: