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  2. Biology of depression - Wikipedia

    en.wikipedia.org/wiki/Biology_of_depression

    The biology of depression is the attempt to identify a biochemical origin of depression, as opposed to theories that emphasize psychological or situational causes. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD) . [ 1 ]

  3. Disorders of diminished motivation - Wikipedia

    en.wikipedia.org/wiki/Disorders_of_diminished...

    The dopamine D 1 receptor appears to have an important role in motivation and reward. [38] Centrally acting dopamine D 1-like receptor agonists like tavapadon and razpipadon and D 1 receptor positive modulators like mevidalen and glovadalen are under development for medical use, including treatment of Parkinson's disease and notably of dementia ...

  4. Bipolar Disorder: 4 Types & What You Need to Know About Them

    www.aol.com/bipolar-disorder-4-types-know...

    Bipolar disorder is a long-term mood disorder characterized by major fluctuations in mood — both high and low — that can impact daily functioning and behavior. Bipolar Disorder: 4 Types & What ...

  5. Dopamine - Wikipedia

    en.wikipedia.org/wiki/Dopamine

    According to research, potentially problematic video game use is related to personality traits such as low self-esteem and low self-efficacy, anxiety, aggression, and clinical symptoms of depression and anxiety disorders. [74] Additionally, the reasons individuals play video games vary and may include coping, socialization, and personal ...

  6. Neurotrophic hypothesis of depression - Wikipedia

    en.wikipedia.org/wiki/Neurotrophic_hypothesis_of...

    Depression is commonly attributed to a deficiency in monoamines, such as serotonin. The monoamine hypothesis of depression suggests that depression is primarily caused by a deficiency of several monoamines, namely serotonin, dopamine and norepinephrine. [2] This hypothesis is widely accepted due to its simplicity. [3]

  7. Acute tryptophan depletion - Wikipedia

    en.wikipedia.org/wiki/Acute_tryptophan_depletion

    For example, a meta-analysis show that the effect size for the effects of tryptophan depletion on mood in depressed people not taking antidepressants was large (Hedge's g = −1.9 (95% CIs −3.02 to −0.78) [3] Hence, a more accurate interpretation is that tryptophan depletion studies suggest a role for 5-HT in people vulnerable to depression ...

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