Tribute Money by Masaccio Essay Example | Topics and Well Written Essays - 500 words

Tribute Money by Masaccio - Essay Example Matthew, kneeling in the far left, deliberately replies strangers. The tax collectors confront the group of holy men. Masaccio’s purpose was to create a realistic painting that contained natural aspects of the environment as well as the human composition. He focuses on directing the viewer’s eyes to the vanishing point of the painting, the head of Christ. Masaccio used atmospheric perspective, making all the mountains in the background hazy and Peter to be paler than the figures in the foreground. This technique created a depth within the painting to render Realism. It is difficult to see the cuts of the mountains in the background but the folds of the robesin the foreground are easily distinguishable. Masaccio, unlike earlier artists like Giotto, did not use a flat, neutral light from an unidentifiable source. He used light from a specific location outside the painting to create a chiaroscuro effect, the representation of form through light and color without outlines. There is no light source visible within the picture but if the viewer notices the shadows of the figures, they are al l cast away from the chapel. This makes the viewer believe the figures were lit by the light through the chapel window. Masaccio proves this belief by creating the front two columns brighter than the rest of the chapel. Furthermore, the tax collector on the far right and the chapel wall is extremely dark. In general, all figures and objects become gradually dimmer as the viewer looks to the right. Masaccio uses the composition of his figures to create a three-dimensional world to depict reality. Masaccio’s figures in the foreground are large, solid figures that dominate the natural setting before the lake and mountains. In contrast, he uses soft hand gestures and facial expressions rather than swift actions to show movements within the painting. This emphasizes

Describe Major Depressive Disorder, highlighting the neurochemical and Essay

Describe Major Depressive Disorder, highlighting the neurochemical and physical changes that are associated with this disease. Based on the known neurochemical - Essay Example The importance of MDD lies in the fact that it causes considerable impairment in social functioning, role functioning, employment and physical health of the afflicted person (Wells et al, 1989). Experts are of the opinion that depression is actually a heterogeneous syndrome comprised of numerous diseases of distinct causes and pathophysiologies (Nestler et al, 2002). MDD is also known as clinical depression or unipolar depression. According to the National Comorbidity Survey Replication (NCS-R),  which studied the epidemiology of MDD across the United States, the prevalence of MDD for lifetime was estimated as 16.2% and that for 12-month was estimated as 6.6% (Kessler et al, 2003). There are very few studies which relate the prevalence of MDD to race or ethnicity (table-2). Infact, severe forms of depression affect 2-5% of the US population (Nestler et al, 2002). As far as age is considered, the risk is fairly low in the younger age groups (Figure-1). While major depressive disorder can develop at any age, the median age at onset is 32 (Kessler et al, 2005). It is more prevalent in women than in men (Kessler et al, 2003). MDD is comorbid with anxiety and substance use disorders (Kessler et al, 2003). Studies have shown that MDD with anger attacks are significantly associated with increased cholesterol levels and years of smoking (Fraquas et al, 2007). MDD is a debilitating and complex psychiatric disorder that involves multiple neural circuits and genetic and non-genetic risk factors (Sahay et al, 2007). Whether environmental factors or genetic factors play a major role in the pathogenesis of MDD is still debated. Exaggerated early error-detection processes have been incriminated in the etiology and maintenance of major depressive disorder and thus such processes may then recruit excessive neural and cognitive resources that manifest as symptoms of depression (Chiu and Deldin,