Mood Disorder

Afternoon slump in reward response

Activation of a reward-processing brain region peaks in the morning and evening and dips at 2 p.m., finds a study of healthy young men published in The Journal of Neuroscience. This finding may parallel the drop in alertness ...

Aug 21, 2017
popularity56 comments 0

Women have more active brains than men

In the largest functional brain imaging study to date, the Amen Clinics (Newport Beach, CA) compared 46,034 brain SPECT (single photon emission computed tomography) imaging studies provided by nine clinics, quantifying differences ...

Aug 07, 2017
popularity9560 comments 1

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 licensed under CC BY-SA

Latest Spotlight News

Researcher identifies a new way to treat HIV

Medical treatment that targets human proteins rather than ever-mutating viruses may one day help HIV-positive people whose bodies have built a resistance to "cocktails" currently used to keep them healthy, according to a ...

New understanding of how muscles work

Muscle malfunctions may be as simple as a slight strain after exercise or as serious as heart failure and muscular dystrophy. A new technique developed at McGill now makes it possible to look much more closely at how sarcomeres, ...

New insights into the world of trypanosomes

Single specimens of the vermicular pathogens causing sleeping sickness swim inside the gut of the tsetse fly between blood cells which the fly has ingested from an infected mammal. This is where they start their week-long ...