News tagged with drug addiction

Smoking is dumb: Researcher finds link between cigarette smoking and IQ

"Only dopes use dope," goes the memorable warning about drugs. Now a Tel Aviv University researcher cautions that the same goes for cigarettes.

Medicine & Health / Health

created Apr 01, 2010 | popularity 4.1 / 5 (23) | comments 29 | with audio podcast

Site for alcohol's action in the brain discovered

Alcohol's inebriating effects are familiar to everyone. But the molecular details of alcohol's impact on brain activity remain a mystery. A new study by researchers at the Salk Institute for Biological Studies ...

Medicine & Health / Neuroscience

created Jun 28, 2009 | popularity 5 / 5 (10) | comments 1

Compulsive eating shares addictive biochemical mechanism with cocaine, heroin abuse: study

In a newly published study, scientists from The Scripps Research Institute have shown for the first time that the same molecular mechanisms that drive people into drug addiction are behind the compulsion to overeat, pushing ...

Medicine & Health / Neuroscience

created Mar 28, 2010 | popularity 4.5 / 5 (10) | comments 6 | with audio podcast

Dopamine enhances expectation of pleasure in humans

(PhysOrg.com) -- Enhancing the effects of the brain chemical dopamine influences how people make life choices by affecting expectations of pleasure, according to new research from the UCL Institute of Neurology.

Medicine & Health / Neuroscience

created Nov 12, 2009 | popularity 4.2 / 5 (10) | comments 0

Desire and dread: Brain's computer has separate keyboard to control powerful emotions

(PhysOrg.com) -- Controlling powerful emotional reactions is often difficult because the brain's computer has a separate "keyboard" that controls feelings within extreme emotions like desire and dread, according to University ...

Medicine & Health / Psychology & Psychiatry

created Jun 30, 2010 | popularity 4.7 / 5 (7) | comments 0 | with audio podcast

Scientists seek to manage dopamine's good and bad sides

The good, the bad and the ugly: That's a quick summary of the effects of dopamine, a natural brain chemical that's linked to pleasure, addiction and disease.

Medicine & Health / Medical research

created Oct 07, 2009 | popularity 5 / 5 (6) | comments 0

Research shows temptation more powerful than individuals realize

Whether it's highlighted in major news headlines about Argentinean affairs and Ponzi schemes, or in personal battles with obesity and drug addiction, individuals regularly succumb to greed, lust and self-destructive behaviors. ...

Medicine & Health / Psychology & Psychiatry

created Aug 03, 2009 | popularity 3.9 / 5 (7) | comments 8

Flipping the brain's addiction switch without drugs

When someone becomes dependent on drugs or alcohol, the brain's pleasure center gets hijacked, disrupting the normal functioning of its reward circuitry.

Medicine & Health / Medical research

created May 28, 2009 | popularity 5 / 5 (5) | comments 0

Milkshake like cocaine for overeaters: Imaging shows the powerful impact food has on the brain

Millions of overweight Americans consider food the enemy. And according to new research, this enemy plays devious mind games.

Medicine & Health / Neuroscience

created Sep 30, 2010 | popularity 5 / 5 (5) | comments 1 | with audio podcast

Birds and mammals share a common brain circuit for learning

(PhysOrg.com) -- Bird song learning is a model system for studying the general principles of learning, but attempts to draw parallels between learning in birds and mammals have been difficult because of anatomical ...

Biology / Plants & Animals

created May 18, 2010 | popularity 5 / 5 (4) | comments 0 | with audio podcast

'Happy hour' gene discovery suggests cancer drugs might treat alcoholism

A class of drugs already approved as cancer treatments might also help to beat alcohol addiction. That's the conclusion of a discovery in flies of a gene, dubbed happyhour, that has an important and previously unknown role ...

Medicine & Health / Genetics

created May 21, 2009 | popularity 4.8 / 5 (4) | comments 1

Ritalin may cause changes in the brain’s reward areas

(PhysOrg.com) -- A common treatment for attention deficit/hyperactivity disorder, prescribed millions of times a year, may change the brain in the same ways that cocaine does, a new study in mice suggests. Research from Rockefeller ...

Medicine & Health / Medical research

created Feb 04, 2009 | popularity 5 / 5 (3) | comments 1

Brain protein central to both Parkinson's, drug addiction identified

Scientists have identified a protein that appears not only to be central to the process that causes Parkinson's disease but could also play a role in muting the high from methamphetamine and other addictive drugs.

Medicine & Health / Medical research

created May 04, 2009 | popularity 5 / 5 (3) | comments 0

Addiction scientists call for end to executions for drug offenders

The death penalty for those convicted of drug trafficking and other drug-related offences should be abolished as it is both ineffective as a policy measure and a violation of human rights.

Medicine & Health / Other

created Jul 14, 2009 | popularity 5 / 5 (3) | comments 0

Wastewater used to map illicit drug use

A team of researchers has mapped patterns of illicit drug use across the state of Oregon using a method of sampling municipal wastewater before it is treated.

Chemistry / Analytical Chemistry

created Jul 15, 2009 | popularity 5 / 5 (3) | comments 3

Drug addiction

Drug addiction is a pathological condition. The disorder of addiction involves the progression of acute drug use to the development of drug-seeking behavior, the vulnerability to relapse, and the decreased, slowed ability to respond to naturally rewarding stimuli. The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) has categorized three stages of addiction: preoccupation/anticipation, binge/intoxication, and withdrawal/negative affect. These stages are characterized, respectively, everywhere by constant cravings and preoccupation with obtaining the substance; using more of the substance than necessary to experience the intoxicating effects; and experiencing tolerance, withdrawal symptoms, and decreased motivation for normal life activities. By the American Society of Addiction Medicine definition, drug addiction differs from drug dependence and drug tolerance.

It is, both among scientists and other writers, quite usual to allow the concept of drug addiction to include persons who are not drug abusers according to the definition of the American Society of Addiction Medicine. The term drug addiction is then used as a category which may include the same persons who under the DSM-IV can be given the diagnosis of substance dependence or substance abuse. (See also DSM-IV Codes)

For more information about Drug addiction, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.