Mood Disorders
The brain on drugs: Defining the neural anatomy and physiology of morphine on dopamine neurons
(Medical Xpress) -- Morphine's analgesic properties are as potent as its addictive potential are problematic. The neural pathway for that addiction is typically associated with dopamine (DA) neurons of the ...
Neuroscience
Oct 04, 2011 |
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Mouse research links adolescent stress and severe adult mental illness
Working with mice, Johns Hopkins researchers have established a link between elevated levels of a stress hormone in adolescence—a critical time for brain development—and genetic changes that, in young adulthood, cause ...
Neuroscience
Jan 17, 2013 |
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Decreased gene activity is likely involved in childhood risk for anxiety and depression
Decreased activity of a group of genes may explain why in young children the "fear center" of the anxious brain can't learn to distinguish real threats from the imaginary, according to a new University of Wisconsin study.
Psychology & Psychiatry
Oct 18, 2012 |
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Study shows how early social isolation impairs long-term cognitive function
A growing body of research shows that children who suffer severe neglect and social isolation have cognitive and social impairments as adults. A study from Boston Children's Hospital shows, for the first time, how these functional ...
Neuroscience
Sep 13, 2012 |
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Deep brain stimulation shows promising results for unipolar and bipolar depression
A new study shows that deep brain stimulation (DBS) is a safe and effective intervention for treatment-resistant depression in patients with either unipolar major depressive disorder (MDD) or bipolar ll disorder (BP). The ...
Psychology & Psychiatry
Jan 02, 2012 |
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Dreaming takes the sting out of painful memories: study
They say time heals all wounds, and new research from the University of California, Berkeley, indicates that time spent in dream sleep can help.
Medical research
Nov 23, 2011 |
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Neuroscientists record novel responses to faces from single neurons in humans
Responding to faces is a critical tool for social interactions between humans. Without the ability to read faces and their expressions, it would be hard to tell friends from strangers upon first glance, let ...
Neuroscience
Sep 29, 2011 |
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Control of fear in the brain decoded
When healthy people are faced with threatening situations, they react with a suitable behavioural response and do not descend into a state of either panic or indifference, as is the case, for example, with ...
Neuroscience
Sep 06, 2011 |
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Stress in the city: Brain activity and biology behind mood disorders of urban residents
Being born and raised in a major urban area is associated with greater lifetime risk for anxiety and mood disorders. Until now, the biology for these associations had not been described. A new international study, which involved ...
Psychology & Psychiatry
Jun 22, 2011 |
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Genetic predictors of postpartum depression uncovered
Johns Hopkins researchers say they have discovered specific chemical alterations in two genes that, when present during pregnancy, reliably predict whether a woman will develop postpartum depression.
Psychology & Psychiatry
May 21, 2013 |
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Human emotion: We report our feelings in 3-D
Like it or not and despite the surrounding debate of its merits, 3-D is the technology du jour for movie-making in Hollywood. It now turns out that even our brains use 3 dimensions to communicate emotions.
Psychology & Psychiatry
Mar 26, 2013 |
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Fear factor: Study shows brain's response to scary stimuli
(Medical Xpress)—Driving through his hometown, a war veteran with post-traumatic stress disorder may see roadside debris and feel afraid, believing it to be a bomb. He's ignoring his safe, familiar surroundings and only ...
Neuroscience
Feb 08, 2013 |
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Virtual patient may help future doctors prevent suicide
A virtual patient named Denise may help future physicians feel more comfortable and capable assessing suicide risk.
Psychology & Psychiatry
Jan 04, 2013 |
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Brake on nerve cell activity after seizures discovered: Gene expression initiates protective electrical response
Given that epilepsy impacts more than 2 million Americans, there is a pressing need for new therapies to prevent this disabling neurological disorder. New findings from the neuroscience laboratory of Mark ...
Neuroscience
Dec 19, 2012 |
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REM sleep enhances emotional memories, study shows
(Medical Xpress)—Witnessing a car wreck or encountering a poisonous snake are scenes that become etched in our memories.
Neuroscience
Dec 18, 2012 |
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Mood disorder is the term designating a group of diagnoses in the Diagnostic and Statistical Manual of Mental Disorders (DSM IV TR) classification system where a disturbance in the person's mood is hypothesized to be the main underlying feature. The classification is known as mood (affective) disorders in ICD 10.
English psychiatrist Henry Maudsley proposed an overarching category of affective disorder. The term was then replaced by mood disorder, as the latter term refers to the underlying or longitudinal emotional state, whereas the former refers to the external expression observed by others.
Two groups of mood disorders are broadly recognized; the division is based on whether the person has ever had a manic or hypomanic episode. Thus, there are depressive disorders, of which the best-known and most researched is major depressive disorder (MDD) commonly called clinical depression or major depression, and bipolar disorder (BD), formerly known as manic depression and characterized by intermittent episodes of mania or hypomania, usually interlaced with depressive episodes.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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