About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Children With Low IQ May Develop Psychiatric Disorders Later

by Hannah Punitha on December 3, 2008 at 12:25 PM
Font : A-A+

Children With Low IQ May Develop Psychiatric Disorders Later

In a new, long-term study, researchers at Harvard School of Public Health (HSPH) found that children with lower IQs showed an increased risk of developing psychiatric disorders as adults, including schizophrenia, depression and generalized anxiety disorder.

Lower IQ was also linked to psychiatric disorders that were more persistent and an increased risk of having two or more diagnoses at age 32.

Advertisement

The study participants were members of the Dunedin Multidisciplinary Health and Development Study, a cohort of children born in 1972-1973 in Dunedin, New Zealand.

At the initial assessment at age 3, the study had 1,037 children. The participants were also interviewed and tested on their overall health and behavior at ages 5, 7, 9, 11, 13, 15, 18, 21, 26 and at age 32, when 96 percent of the original cohort participated. IQs were assessed at ages 7, 9 and 11.
Advertisement

Psychiatric disorders were assessed at ages 18 through 32 in interviews by clinicians who had no knowledge of the subjects' IQ or psychiatric history.

The researchers used IQ as a marker of a concept called cognitive reserve, which refers to variation between people in their brain's resilience to neuropathological damage.

They found that lower childhood IQ predicted an increased risk of a variety of adult mental disorders.

"Lower childhood IQ predicted increased risk of schizophrenia, depression, and generalized anxiety disorder. Individuals with lower childhood IQ also had more persistent depression and anxiety and were more likely to be diagnosed with two or more disorders in adulthood," said lead author Karestan Koenen, assistant professor of society, human development, and health at HSPH.

No link was found between lower childhood IQ and substance dependence disorders, simple phobia, panic disorder or obsessive-compulsive disorder.

The mechanism through which lower childhood IQ might lead to increased risk of adult anxiety disorders is not known, but the authors suggest some possible explanations.

They write that lower childhood IQ might reveal a difference in brain health that makes an individual more vulnerable to certain mental disorders.

Another possible mechanism is stress - individuals with lower childhood IQs are less equipped to deal with complex challenges of modern daily life, which may make them more vulnerable to developing mental disorders.

The findings may be helpful in treating individuals with mental health disorders.

"Lower childhood IQ was associated with greater severity of mental disorders including persistence over time and having two or more diagnoses at age 32," said Koenen.

The study will be published online December 1, 2008 and in the January print issue of The American Journal of Psychiatry.

Source: ANI
SPH
Advertisement

Advertisement
News A-Z
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
Advertisement
News Category
What's New on Medindia
Top 7 Benefits of Good Oral Hygiene
Healthy and Safer Thanksgiving 2021
Long-Term Glycemic Control - A Better Measure of COVID-19 Severity
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Agoraphobia Height and Weight-Kids Loss of Taste Body Dysmorphic Disorder (BDD) - A Psychological Disorder Postpartum Psychosis Trichobezoars Bibliomania / Bibliokleptomania Multitasking: Good or Bad for Your Brain? 

Recommended Reading
Attention Deficit Hyperactivity Disorder (ADHD)
Attention Deficit Hyperactivity Disorder (ADHD) is a neurobiological disorder that affects normal .....
Adolescent Depression
Adolescent depression is an ailment that occurs during the teenage characterized by persistent ......
Depression
Depression is one of the most common mental disorders affecting approximately 340 million people in ...
Agoraphobia
Agoraphobia is an anxiety disorder characterised by the patient avoiding spaces, crowds, or ......
Bibliomania / Bibliokleptomania
Did you know there is a psychiatry condition due to ‘Book Madness’ called bibliomania. Know more abo...
Body Dysmorphic Disorder (BDD) - A Psychological Disorder
Do you worry too much about defects in your body? Then you must definitely check if the symptoms res...
Loss of Taste
Symptom of loss of taste usually occurs in combination with loss of smell and can be complete loss o...
Multitasking: Good or Bad for Your Brain?
Is multitasking good when your brain frantically switches between tasks or does it slow down the bra...
Postpartum Psychosis
What is Postpartum Psychosis? Find the facts of Puerperal (postpartum) psychosis including symptoms,...
Trichobezoars
Trichobezoars are undigested masses of hair mixed with food particles in the abdomen hairball and it...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use