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Mice that exercise in running wheels exhibit increased neurogenesis in the brain. Crucial to this process is serotonin signaling. These are the findings of a study by researchers at the Max Delbrück Center ...
Neuroscience May 13, 2013 | 4.8 / 5 (4) | 0
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Psychology & Psychiatry May 10, 2013 | 3.8 / 5 (4) | 0
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Psychology & Psychiatry May 09, 2013 | not rated yet | 0
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Diseases, Conditions, Syndromes May 06, 2013 | not rated yet | 0
Electroconvulsive therapy (ECT) is the most effective acute treatment for severe major depression. However, even with newer forms of ECT, there remains a significant risk of adverse cognitive effects, particularly memory ...
Psychology & Psychiatry May 06, 2013 | not rated yet | 0
The mantra that quality is more important than quantity is true when considering how social relationships influence depression, say U-M researchers in a new study.
Psychology & Psychiatry Apr 30, 2013 | 4.2 / 5 (5) | 0 |
Americans are over-diagnosed and over-treated for depression, according to a new study conducted at the Johns Hopkins Bloomberg School of Public Health. The study examines adults with clinician-identified depression and individuals ...
Psychology & Psychiatry Apr 30, 2013 | 1 / 5 (1) | 0
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Neuroscience Apr 24, 2013 | 5 / 5 (2) | 0 |
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Success in patients with major depression: For the first time, physicians stimulated patients' medial forebrain bundles
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Psychology & Psychiatry Apr 09, 2013 | 4.9 / 5 (7) | 5
A new study by a Rhode Island Hospital researcher has found that traumatic brain injury (TBI) can significantly increase the odds of having major depression, personality impulsivity and post-traumatic stress disorder (PTSD) ...
Neuroscience Apr 08, 2013 | not rated yet | 0
(HealthDay)—Eugene King ran away from home at the age of 16, the start of a lifelong pattern of drug abuse, crime and incarceration.
Psychology & Psychiatry Apr 05, 2013 | not rated yet | 0
Major depressive disorder (MDD) (also known as recurrent depressive disorder, clinical depression, major depression, unipolar depression, or unipolar disorder) is a mental disorder characterized by an all-encompassing low mood accompanied by low self-esteem, and by loss of interest or pleasure in normally enjoyable activities. This cluster of symptoms (syndrome) was named, described and classified as one of the mood disorders in the 1980 edition of the American Psychiatric Association's diagnostic manual. The term "depression" is ambiguous. It is often used to denote this syndrome but may refer to other mood disorders or to lower mood states lacking clinical significance. Major depressive disorder is a disabling condition that adversely affects a person's family, work or school life, sleeping and eating habits, and general health. In the United States, around 3.4% of people with major depression commit suicide, and up to 60% of people who commit suicide had depression or another mood disorder.
The diagnosis of major depressive disorder is based on the patient's self-reported experiences, behavior reported by relatives or friends, and a mental status examination. There is no laboratory test for major depression, although physicians generally request tests for physical conditions that may cause similar symptoms. If depressive disorder is not detected in the early stages it may result in a slow recovery and affect or worsen the person's physical health. Standardized screening tools such as Major Depression Inventory can be used to detect major depressive disorder. The most common time of onset is between the ages of 20 and 30 years, with a later peak between 30 and 40 years.
Typically, patients are treated with antidepressant medication and, in many cases, also receive psychotherapy or counseling, although the effectiveness of medication for mild or moderate cases is questionable. Hospitalization may be necessary in cases with associated self-neglect or a significant risk of harm to self or others. A minority are treated with electroconvulsive therapy (ECT). The course of the disorder varies widely, from one episode lasting weeks to a lifelong disorder with recurrent major depressive episodes. Depressed individuals have shorter life expectancies than those without depression, in part because of greater susceptibility to medical illnesses and suicide. It is unclear whether or not medications affect the risk of suicide. Current and former patients may be stigmatized.
The understanding of the nature and causes of depression has evolved over the centuries, though this understanding is incomplete and has left many aspects of depression as the subject of discussion and research. Proposed causes include psychological, psycho-social, hereditary, evolutionary and biological factors. Certain types of long-term drug use can both cause and worsen depressive symptoms. Psychological treatments are based on theories of personality, interpersonal communication, and learning. Most biological theories focus on the monoamine chemicals serotonin, norepinephrine and dopamine, which are naturally present in the brain and assist communication between nerve cells.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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