Navigation Links
Heavy marijuana users have abnormal brain structure and poor memory
Date:12/16/2013

CHICAGO --- Teens who were heavy marijuana users -- smoking it daily for about three years -- had abnormal changes in their brain structures related to working memory and performed poorly on memory tasks, reports a new Northwestern Medicine study.

A poor working memory predicts poor academic performance and everyday functioning.

The brain abnormalities and memory problems were observed during the individuals' early twenties, two years after they stopped smoking marijuana, which could indicate the long-term effects of chronic use. Memory-related structures in their brains appeared to shrink and collapse inward, possibly reflecting a decrease in neurons.

The study also shows the marijuana-related brain abnormalities are correlated with a poor working memory performance and look similar to schizophrenia-related brain abnormalities. Over the past decade, Northwestern scientists, along with scientists at other institutions, have shown that changes in brain structure may lead to changes in the way the brain functions.

This is the first study to target key brain regions in the deep subcortical gray matter of chronic marijuana users with structural MRI and to correlate abnormalities in these regions with an impaired working memory. Working memory is the ability to remember and process information in the moment and -- if needed -- transfer it to long-term memory. Previous studies have evaluated the effects of marijuana on the cortex, and few have directly compared chronic marijuana use in otherwise healthy individuals and individuals with schizophrenia.

The younger the individuals were when they started chronically using marijuana, the more abnormally their brain regions were shaped, the study reports. The findings suggest that these regions related to memory may be more susceptible to the effects of the drug if abuse starts at an earlier age.

"The study links the chronic use of marijuana to these concerning bra
'/>"/>

Contact: Marla Paul
marla-paul@northwestern.edu
312-503-8928
Northwestern University
Source:Eurekalert

Page: 1 2 3 4

Related medicine news :

1. Heavy drinking is bad for marriage if 1 spouse drinks, but not both
2. Heavy Drinking Can Cause Anemia And Dementia
3. Lida Daidaihua and Lishou Pink By NLslimming.com Are Now Offered At Heavy Discounts
4. New Colorstar Plush Indoor Wiper Mats from Martinson-Nicholls Provide Comfort and Durability in Heavy Foot Traffic Areas
5. Parents with heavy TV viewing more likely to feed children junk food
6. Living Near Heavy Traffic May Harm Kidney Function
7. Exercise May Blunt Heavy Drinkings Effect on Brain
8. CAMH study shows mental illness associated with heavy cannabis use
9. Genes May Dictate Teens Susceptibility to Heavy Smoking
10. Lung Cancer Asbestos Victims Center Now Urges US Navy Veterans With Lung Cancer To Call Them If They Had Heavy Exposure To Asbestos On A US Navy Ship
11. Heavy moms-to-be at greater risk of c-section
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/27/2015)... 27, 2015 Consumer Choice Award ... Providers in their respective sectors for Ottawa. We would ... winners; your dedication to superior service has resonated with ... Consumer Choice Award gathers opinions, perceptions and expectations through ... winners have gone through a rigorous selection process conducted ...
(Date:4/27/2015)... 27, 2015 The Sanford J. Grossman ... J. Grossman, PhD, has committed $3 million to establish ... in Inflammatory Bowel Disease at the Icahn School of ... creating personalized medicine for treatment of Crohn’s disease, with ... , Crohn’s Disease, a chronic inflammatory disorder of the ...
(Date:4/27/2015)... Final Cut Pro X users can now ... Film Studios. A telestrator is a device that allows its ... still video image. Telestrators are often used in sports and ... weather patterns. , After users are done drawing,users can check ... to control the speed of the animation. This can give ...
(Date:4/27/2015)... 2015 Covenant Care, a leading post ... out its “Enhanced Dining” service with two primary focuses: ... input from residents, patients and families to ensure that ... of its dining rooms so that they are more ... life for our residents is our number one priority ...
(Date:4/26/2015)... April 26, 2015 The Physical ... inpatient and outpatient therapy facilities that provide physical, speech ... to 2015, the industry has experienced revenue growth as ... of the benefits of physical therapy services. The number ... support industry revenue growth during the period because seniors ...
Breaking Medicine News(10 mins):Health News:2015 Ottawa Consumer Choice Award-Winners 2Health News:2015 Ottawa Consumer Choice Award-Winners 3Health News:2015 Ottawa Consumer Choice Award-Winners 4Health News:2015 Ottawa Consumer Choice Award-Winners 5Health News:2015 Ottawa Consumer Choice Award-Winners 6Health News:2015 Ottawa Consumer Choice Award-Winners 7Health News:Sanford J. Grossman Charitable Trust Pledges $3 Million to Create Center at Mount Sinai 2Health News:Sanford J. Grossman Charitable Trust Pledges $3 Million to Create Center at Mount Sinai 3Health News:Pixel Film Studios releases ProTelestrator for Final Cut Pro X. 2Health News:Covenant Care Rolls Out "Enhanced Dining" Offering Restaurant Style Experience To Residents, Patients & Families 2Health News:Physical Therapy Rehabilitation Centers in the US Industry Market Research Report from IBISWorld Has Been Updated 2Health News:Physical Therapy Rehabilitation Centers in the US Industry Market Research Report from IBISWorld Has Been Updated 3
... (CMC) has,selected Surgical Information Systems (SIS) to be ... in Scranton, PA. , ... CMC chose the SIS Solution ... and operational efficiencies in the surgery department.,In addition ...
... latest three-dimensional imaging system in their surgeries have ... Cone Beam Computed Tomography (CBCT), which gives a ... scan, is now available in high-street dental practices ... and teeth. , However, CBCT carries an increased ...
... , Researchers of the Catalonian Institute of Oncology ... have discovered that extra virgin olive oil may help to ... last issue of the renowned scientific journal BMC Cancer ... is, natural antioxidants) present in olive oil in breast cancer ...
... fourth-year program that focuses on similar practices used ... -- The Partnership for Patient Care, ... southeastern Pennsylvania hospitals and one of the region,s ... its new initiatives for 2009-2011 today at a ...
... It,s In Our Hands - Has Been Designed ... and Caregivers to Healthcare Resources and Services in ... the initiation of its Community Health Partnership (CHP), ... Bronx area, seeking to link Hispanic residents with ...
... Pharmaceuticals, Inc.,(OTC Bulletin Board: LTUS) ("Lotus" or ... distributor in the People,s Republic of,China, today ... Fang Pharmaceutical Co., Ltd. (,Liang Fang,) completed ... 2008 for land use rights to property,in ...
Cached Medicine News:Health News:Community Medical Center (Scranton) Selects SIS Perioperative Solution 2Health News:Spanish scientists confirm extra virgin olive oil helps to combat breast cancer 2Health News:Region's Hospitals Engage in New Patient-Safety Efforts to Further Reduce Infections, Errors, and Improve Quality of Care 2Health News:Region's Hospitals Engage in New Patient-Safety Efforts to Further Reduce Infections, Errors, and Improve Quality of Care 3Health News:Sanofi-aventis Partners with the Hispanic Community in Bronx to Increase Health Awareness, Access to Resources and Help Improve Patient Care 2Health News:Sanofi-aventis Partners with the Hispanic Community in Bronx to Increase Health Awareness, Access to Resources and Help Improve Patient Care 3Health News:Lotus Pharmaceuticals, Inc. Purchases Land Use Rights to Grow its Business and Reduce Costs 2Health News:Lotus Pharmaceuticals, Inc. Purchases Land Use Rights to Grow its Business and Reduce Costs 3Health News:Lotus Pharmaceuticals, Inc. Purchases Land Use Rights to Grow its Business and Reduce Costs 4Health News:Lotus Pharmaceuticals, Inc. Purchases Land Use Rights to Grow its Business and Reduce Costs 5
(Date:4/27/2015)... 2015  Agena Bioscience today announced Bioyong Technology as the ... in China . "The Chinese ... hotbed for practical, meaningful innovations that are improving human health ... rest of the world. We are proud to support the ... ," said Peter Dansky , Agena Bioscience,s CEO. ...
(Date:4/27/2015)... 27, 2015 China Jo-Jo Drugstores, ... Jo-Jo "), a leading China-based retail and wholesale distributor ... online and retail pharmacies, today announced its subsidiary, Hangzhou ... signed a new sales incentive agreement with Wyeth Pharmaceutical ... China of Pfizer Inc. (NYSE: ...
(Date:4/27/2015)... , April 27, 2015 TWi Pharmaceuticals, ... into a Settlement Agreement with Takeda Pharmaceutical Company ... Inc., Takeda Pharmaceuticals America, Inc. (individually and collectively, ... litigation related to TWi,s generic dexlansoprazole delayed release ... 60 mg dosage strengths. An Abbreviated New Drug Application ...
Breaking Medicine Technology:Agena Bioscience Names Bioyong Technology as Fifth Certified Service Provider in China 2China Jo-Jo Drugstore Signed a New Sales Incentive Agreement with Wyeth Pharmaceutical, a Subsidiary of Pfizer 2China Jo-Jo Drugstore Signed a New Sales Incentive Agreement with Wyeth Pharmaceutical, a Subsidiary of Pfizer 3China Jo-Jo Drugstore Signed a New Sales Incentive Agreement with Wyeth Pharmaceutical, a Subsidiary of Pfizer 4TWi Announces Settlement with Takeda on Dexilant(R) Litigation 2
... a premier provider of economic ultrasound solutions, today announced ... on proprietary repair technology not previously available in the ... transducer repair services designed to counter a growing emphasis ... "The industry has been moving away from repairing customers, ...
... Technologies, Inc. (OTC Bulletin Board: WNDM ) ... (WCI), has entered into a partnership with Government Marketing ... further WCI,s business development within the Veterans Health Administration. ... leader by technology and industry manufacturers as ...
Cached Medicine Technology:MedPro Imaging Launches Ultrasound Transducer Repair Division 2Wound Management Technologies, Inc. Furthers its Government Initiatives and Business Development within the Veterans Health Administration 2Wound Management Technologies, Inc. Furthers its Government Initiatives and Business Development within the Veterans Health Administration 3Wound Management Technologies, Inc. Furthers its Government Initiatives and Business Development within the Veterans Health Administration 4
For accurately monitoring core temperature and heart and breath sounds....
... Level 1 enables ... multiparameter patient monitors to ... series. Our temperature monitoring ... cables are superior in ...
... enables hospitals to standardize ... to a single temperature ... monitoring disposale probes and ... in their manufacture and ...
... Level 1 enables ... multiparameter patient monitors to ... series. Our temperature monitoring ... cables are superior in ...
Medicine Products: