Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression: vincent van gogh's 1890 painting sorrowing old man ('at eternity's gate') the biopsychosocial model proposes that biological, psychological, and social factors all play a role in causing depression. Biological explanations genetic explanations it has been found the rate of unipolar depression to be 104% in first-degree relatives of the probands, compared with 49% in relatives of the control group this supports the biological explanation of mood disorders. Biological explanation of depression the results showed that there was an eight fold increase in unipolar depression among the biological parents of the adults in other words, adoptive parents were eight times less likely to have depression,. Depression is a mood disorder which prevents individuals from leading a normal life, at work socially or within their family seligman (1973) referred to depression as the ‘common cold’ of psychiatry because of its frequency of diagnosis.
One biological explanation for unipolar depression is the monoamine hypothesis the monoamines are a group of neurotransmitters which include serotonin, noradrenaline and dopamine you will recognise the latter, dopamine, from the biological offering of an explanation for schizophrenia. This is a review of the studies comparing unipolar and bipolar depression, with focus on the course, symptomatology, neurobiology, and psychosocial literatures these are reviewed with one question in mind: does the evidence support diagnosing bipolar and unipolar depressions as the same disorder or. Psychological theories provide evidence-based explanations for why people think, behave, and feel the way they do personality factors, history and early experiences and interpersonal relationships are seen as important factors in causing depression.
Bipolar disorder is characterized by cyclic depressive as well as manic or hypomanic episodes, but the depressive phase of the bipolar disorder appears identical to unipolar depression. Major depression and genetics this is a summary of information about what is known about genetics and major depression the links at the bottom of this page will direct you to more information about the symptoms and diagnosis of depression, and also to more detailed information about genetics of depression including articles in the scientific. Psychology and depression men pray to the gods for health and they ignore that it is in their power to have it -democritus depression: depression is an illness, that strikes all ages, all races and all genders. Major depression (unipolar) manic depression (bi-polar) seasonal affective disorder (sad) you should remember from the above section on biological explanations, that the biochemical explanation for depression suggests that the condition is the result of low levels of serotonin and norepinephrine.
The unit 2 exam expects you to know about one non-biological explanation of a disorder other than schizophrenia in this case, unipolar depression you are also expected to understand a psychological treatment for depression which is linked to these explanations. There is no one single, simple explanation for depression - probably each of the above explanations makes important contributions towards explaining depression in different people situations in which one person becomes depressed may not have the same effect on someone else. Major depressive disorder (mdd) is a common psychiatric illness with high levels of morbidity and mortality despite intensive research during the past several decades, the neurobiological basis and pathophysiology of depressive disorders remain unknown. Biological explanations of depression – (biochemical) the biochemical explanation claims that depression is the cognitive state resulting from imbalances in brain chemistry that can be controlled in many cases by antidepressant drugs known as tricyclic drugs.
The current explanations of unipolar depression point to biological, psychological, and so- genetic factors a family pedigree, twin, adoption, and molecular biology gene studies suggest that some people inherit a biological predisposition to unipolar depression b researchers have found that as many as 20 percent of relatives of those with de. Biological explanations of depression, for example, genetics, biochemistry psychological explanations of depression, for example, behavioural, cognitive, psychodynamic and socio-cultural biological therapies for depression, including their evaluation in terms of appropriateness and effectiveness. This 2013 update of the practice guidelines for the biological treatment of unipolar depressive disorders was developed by an international task force of the world federation of societies of biological psychiatry (wfsbp. One biological explanation for unipolar depression is the monoamine hypothesis the monoamines are a group of neurotransmitters which include serotonin , noradrenaline and dopamine. Unipolar depression (otherwise known as major depressive disorder) is defined as a mental disorder with depressive symptoms such as lack of self-esteem, weight loss/gain, fatigue and negative thoughts.
A2 option: biological explanations of depression: genetic and neurochemical mcguffin (1996) studied 214 pairs of twins, where at least one of each twin pair was being treated for unipolar depression it was found that 46% of the identical twins shared the disorder, and only 20% of fraternal non-identical twins shared the disorder. Depression is the most common of mental disorders, with roughly 5 to 10% suffering from severe unipolar depression each year (this statistic is known as a 'point prevalence'), and about 17% of adults experiencing some form of depression at some point in their lives. Depression and treatments depression is not only one of themost widespread and prevalent of the major psychiatric disorders but also oneof the most excessively researched mental illnesses it has oftenfundamentally affects people’s well-being and quality of life. What is unipolar depression diagnostic criteria for the most common mental disorders including: description, diagnosis, treatment, and research findings by definition, major depressive disorder cannot be due to: physical illness, alcohol, medication, or street drug use children adopted away at birth from biological parents who have a.
Unipolar depression includes some mention of bipolar disorder, the utility of the theory for integration of the bipolar literature has not been evaluated previously. The biological causal factors in unipolar mood disorders are those which affect the levels of hormones such as cortisol and melatonin, or neurotransmitters such as serotonin, endorphins, gamma-aminobutyric acid and norepinephrine, all of which can alter mood and may be potential causes of depression. The biochemical and genetic explanation does not take into account significant psychological stressors (ie life events), making the theories over simplistic when considered as an explanation of depression reducing the explanation of depression down to biological factors alone. The longstanding biological explanation of depression—that people with the disorder have low levels of the neurotransmitter serotonin—is now considered overly simplistic.