People with mood disorders often have
imbalances in certain neurotransmitters
, particularly norepinephrine and serotonin (Thase, 2009). These neurotransmitters are important regulators of the bodily functions that are disrupted in mood disorders, including appetite, sex drive, sleep, arousal, and mood.
What are the explanations for mood disorders?
Many factors contribute to mood disorders. They are likely caused by
an imbalance of brain chemicals
. Life events (such as stressful life changes) may also contribute to a depressed mood. Mood disorders also tend to run in families.
What are some biological causes of mood disorders?
- Family history.
- Previous diagnosis of a mood disorder.
- Trauma, stress or major life changes in the case of depression.
- Physical illness or use of certain medications. …
- Brain structure and function in the case of bipolar disorder.
Social-cognitive therapists believe that
negative thought and moods interact causing the depression
. Social-cognitive therapists suggest that learned helplessness contributes to mood disorders.
What is the biogenic theory of mood disorders?
The biogenic amine hypothesis suggests
a reduction in serotoninergic and norepinephrinergic transmission in brain as being associated with depression
. The neurotrophic effects of antidepressants are secondary to the inhibition of neurotransmitter reuptake, enhancing their availability in the synaptic cleft.
What are the 5 mood disorders?
- Major depression. Having less interest in normal activities, feeling sad or hopeless, and other symptoms for at least 2 weeks may mean depression.
- Dysthymia. …
- Bipolar disorder. …
- Mood disorder linked to another health condition. …
- Substance-induced mood disorder.
Which of the following is the most common mood disorder?
- Depression.
- Bipolar Disorder.
- Seasonal Affective Disorder (SAD)
- Self-Harm.
What are some examples of mood disorders?
- Major depressive disorder — prolonged and persistent periods of extreme sadness.
- Bipolar disorder — also called manic depression or bipolar affective disorder, depression that includes alternating times of depression and mania.
What is mixed mood disorder?
Mixed features refers to the
presence of high and low symptoms occurring at the same time
, or as part of a single episode, in people experiencing an episode of mania or depression. In most forms of bipolar disorder, moods alternate between elevated and depressed over time.
Is anxiety considered a mood disorder?
“
No, anxiety is a feeling
. All people experience anxiety at some time in their life during events like car accidents, weddings and new jobs. There are things that create anxiety, but are short lived and not an actual disorder.
What is the most common psychological disorder?
Anxiety disorders
are the most common mental illness in the U.S., affecting 40 million adults in the United States age 18 and older, or 18.1% of the population every year. Anxiety disorders are highly treatable, yet only 36.9% of those suffering receive treatment.
Is depression biological or cognitive?
Depression results from systematic negative bias in thinking processes. Emotional, behavioral (and possibly physical) symptoms result from
cognitive abnormality
. This means that depressed patients think differently to clinically normal people.
How do genetics affect mood disorders?
Genetic factors are known to play an important role in infl uencing susceptibility to Mood disorders: indeed, formal genetic studies suggest that the risk for first-degree relatives of an affected proband is
about threefold higher than
the overall population for Major depressive disorder and tenfold higher for bipolar …
How does biological perspective explain depression?
Current research suggests that
a decrease in the production of serotonin by these neurons can cause depression in some people
, and more specifically, a mood state that can cause some people to feel suicidal. In the 1960s, the “catecholamine hypothesis” was a popular explanation for why people developed depression.
What is the biogenic theory?
PetroWiki.
A theory of petroleum formation in which the petroleum is thought to have originated from plant and animal material that has undergone transformation from deep burial
.
What are the biological factors of bipolar disorder?
Bipolar disorder is widely believed to be the result of
chemical imbalances in the brain
. The chemicals responsible for controlling the brain’s functions are called neurotransmitters, and include noradrenaline, serotonin and dopamine.
