Essays on Constancy

The Muller-Lyer illusion is a useful tool for investigating the effects of the environment on human perception. The illusion shows that humans use the surroundings of an object to make a judgment of the size of that object, which is not necessarily accurate. The theory of size constancy suggests that we can usually make a judgment about the size of an object based on depth perception, the nearby objects, what we already know, and other factors. The Muller-Lyer illusion is an example of that system being tricked due to the presence of an acute or obtuse angle. It is ...

Monomorphic Ventricular Tachycardia

Cardiac arrhythmias often require immediate medical care that may include resuscitation (Ray, 2004). The diagnosis of cardiac arrhythmias can be challenging particularly in situations whereby the patient is asymptomatic and ECG findings are normal between symptomatic episodes (Cruickshank, 2008). Distinguishing between supraventricular and ventricular tachycardia is also a challenge (Australian Resuscitation Council, 2008). Cardiac arrhythmia should be suspected in patients with a history of syncope, near syncope, palpitations, and/or chest pain (Cruickshank, 2008). This paper will justify why monomophic ventricular tachycardia is the most likely diagnosis of a male patient who collapsed abruptly and has hypotension (BP 63/38), tachycardia ( ...

The question of whether we should trust our sense comes to us from the ancient times. Since the beginning of philosophy and thought, humans wondered whether the world is the way they see and experience it. With the advancements in philosophy, such doubts even framed out in a separate field of thought. Many thinkers were very skeptical about the contrast between the world as we perceive it and the way it really is and what role do our senses play in the process of perception and understanding. Descartes and Hume are two of the most prominent philosophers whose views ...

Weird Personal Experiences

We can often hear people say that they saw something with their own eyes or heard something with their own ears. Moreover, those people experienced a lot of extraordinary things. However, their eyes can lie. Sometimes people do not know that their experiences can mislead them in the most unexpected ways. This happens for some reasons. Mainly, people's perceptual capacities and states of consciousness are believed to have natural powers and limits (Schick, Jr. and Vaughn 96-153). A lot of people do not know about those powers and limits. However, these weird features of our minds have a great ...

When we speak of the Irish Renaissance, we can also be referring to a Celtic Renaissance. We call it the Irish Renaissance because it was championed principally by Irish writers, one of which, at least, used the Celtic tradition to invigorate the Renaissance. Ireland at the turn of the 20th century was mired in passions. Rebellion was always on the horizon, economic collapse was always imminent, the catastrophe of the Potato Famine was still a racial memory, and the rule of the English was still unbearable. From this potentially destructive social structure came some of the finest writing of ...