About Us Portfolio Press Careers Sitemap Advertise Contact Us Make this your Homepage

Custom Search

Register

Sign In

Sign In Using Facebook

Home » Research News

IQ Depends on Particular Regions of the Brain

by Sreeraman on March 13, 2009 at 11:16 AM Research News

A new study conduced by scientists at the California Institute of Technology (Caltech) sheds new light on how the various factors that comprise an "intelligence quotient" (IQ) score depend on particular regions of the brain.

Related Links

The researchers claim that they have carried out the most comprehensive brain mapping to date of the cognitive abilities measured by the Wechsler Adult Intelligence Scale (WAIS), the most widely used intelligence test in the world

Neuroscientist Ralph Adolphs and postdoctoral scholar Jan Gl�scher compiled the maps using detailed magnetic resonance imaging (MRI) and computerized tomography (CT) brain scans of 241 neurological patients recruited from the University of Iowa's extensive brain-lesion registry.

The researchers revealed that all the subjects had some degree of cognitive impairment from events such as strokes, tumour resection, and traumatic brain injury, as assessed by testing using the WAIS.

The WAIS test is composed of four indices of intelligence, each consisting of several subtests, which together produce a full-scale IQ score.

The four indices are the verbal comprehension index, the perceptual organization index that involves visual and spatial processing, the working memory index that represents the ability to hold information temporarily in mind, and the processing speed index.

The researchers first transferred the brain scans of all 241 patients to a common reference frame, an approach pioneered by neuroscientist Hanna Damasio of the University of Southern California, a co-author of the study.

Page 1

Page 1 | 2

Next

Interrupting Asthma Treatment During Pregnancy More Harmful

Gold-Iron Oxide Nanoparticle Combo Successful In Killing Breast Cancer Cells

More News on: Parkinsons Disease, Brain, Brain Facts, Parkinsons Disease Surgical Treatment

Comment & Contribute

Be the first to comment!
Comments should be on the topic and should not be abusive. Comments are normally moderated and are reviewed after they are posted.
* Your comment can be maximum of 2500 characters
	Notify me when reply is posted I agree to the terms and conditions
Your comments are automatically posted once they are submitted. All comments are however constantly reviewed for spam and irrelevant material (such as product or personal advertisements, email addresses, telephone numbers and website address). Such insertions do not conform to our policy and 'Terms of Use' and are either deleted or edited and republished. Please keep your comments brief and relevant.This section may also have questions seeking help. If you have the information you are welcome to respond, but please ensure that the information so provided is genuine and not misleading.

Medwonders Health Network

Support Groups Members Discussions

Total Members - 54958
Support Groups - 445

Health News Index

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Latest News Most Popular Most Commented

Five More Patients Die as Doctors' Strike Continues in AP

Imogen Thomas Seeks Hypnotherapy To Get Rid of Cake Addiction

Website To Promote Premarital Virginity Launched in China

Excessive Consumption of Phosphate Pose Risk To Health

RSBY to Provide Health Insurance for 66,000 J&K Families

News Archive
Date :
Category :
Keyword :

Quiz on Brain
Feeling bad, sad, silly or glad? Find out what is responsible by taking part in our brain quiz.

News Quick Links

	News Central			Health Watch
	Latest Health News			Health In Focus
	News Category (500+)			Breaking Health News
	Popular News			Celebrating Life
	Health News and Press Release			Medindia - Exclusive
	News Photo Gallery			India Special
	News Video Gallery			Lifestyle and Wellness
	News From Other Resources

Brain

Complete Medindia Resources

News Categories:


»	Research Says Financial Burden of Prescription Drugs is Dropping

»	New Guidelines to Avoid Heparin Contamination

»	Weight Loss Drug Has Killed At Least 1,300 in France

»	FDA Approves Sanofi�s Treatment for Head Lice

»	New Scoring Method may Help Decide Who Will Benefit From Stroke Drug
More Drug News

Research Related News
»	Study Provides Evidence of Malaria's Impact on Fetal Growth	»	Research Sheds Light on Usefulness of Bubble-Propelled Microrockets
»	Research Details How Deadly Bird Parasite Evolves at a Fast Rate	»	Peptides That Could Lead to Universal Influenza Vaccine Identified
»	Video-Based Home Exercise Able to Ease Osteoarthritis Pain and Perk Up Mobility	»	Memory Enhancement by Stimulating Key Spot in Brain
»	Substance P Causes Seizures in People With Pork Tapeworm	»	Neighboring 'Finger Nerve Cells' Render Middle Finger Slowest

Read More >>

IQ Depends on Particular Regions of the Brain

Medwonders Health Network

Research Related News

Consumers

Medical Professionals

Medical Students

Directories