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- The biological explanation of depression suggests that an imbalance in neurotransmitters within the brain causes depression, most notably serotonin. Other neurotransmitters implicated in the biological explanation include noradrenaline and dopamine.
www.studysmarter.co.uk/explanations/psychology/social-context-of-behaviour/biological-explanation-of-depression/
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Depression makes deep inroads on biology to bring about the many symptoms of depression, from sleep disruption and an inability to experience pleasure to lack of motivation and feelings of...
- The inheritance of risk for depression is considered, at best, polygenetic—that is, a number of unknown genes each contributes a tiny risk under ce...
- Scientists know that the expression and function of many genes can be altered without doing the near-impossible—making any changes to the gene stru...
- Overexcitability of the stress response system, shifts in activity of various neurochemicals in the brain, diminished efficiency of nerve circuitry...
- Disruption of the sleep-wake cycle is one of the hallmarks of depression and is a major source the mood disturbance in major depression. Lack of sl...
- Emotions are fleeting responses to stimuli; mood is a more sustained state of emotion. Like emotions, mood probably originates with activity of the...
- The neurotransmitter serotonin is one of many signaling chemicals in the brain associated with depressive symptoms. Under normal conditions, seroto...
- The neurotransmitter dopamine, which mediates motivation and desire, is one of several brain signaling chemicals that are implicated in depression...
- Where once researchers and clinicians focused on the role of neurotransmitters such as serotonin in depression, they now know that neurotransmitter...
- Stress can be beneficial to the brain, depending on how intense and long-lasting the stressor is. In brief bursts, stress fosters alertness, learni...
Jul 17, 2023 · Depression is a very common disorder encountered by the nurse practitioner, primary care provider, psychiatrist, and mental health worker, coordinating as an interprofessional healthcare team. The disorder has extremely high morbidity including the risk of suicide.
- Suma P. Chand, Hasan Arif
- 2023/07/17
- Thomas Jefferson University Hospital
Biology of depression. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD), [1] and this has encouraged advocates of various theories that seek to identify a biochemical origin of the disease, as opposed to theories that emphasize psychological or situational causes.
Depression is one of the most common mental health issues, with an estimated prevalence of 5% among adults [1, 2]. Symptoms may include anhedonia, feelings of worthlessness, concentration and sleep difficulties, and suicidal ideation.
Oct 8, 2018 · Introduction. Depressive disorders (particularly their main representative ‘major depressive disorder’) constitute one of the leading causes of disability worldwide (Friedrich, 2017).
- Alexander Kaltenboeck, Catherine Harmer, Catherine Harmer
- 2018
Whereas the psychoanalytic theory of depression focuses on a pathological motivational system, and cognitive theory focuses on pathology of belief, interpersonal–psychodynamic theory of depression focuses on the pathological relation of the person to their interpersonal environment.
Apr 9, 2019 · Depression is a complex disorder that takes an enormous toll on individual health. As affected individuals display a wide variation in their clinical symptoms, the precise neural mechanisms ...
