Topic #2: When should we trust our senses to give us truth? Word count: 779 words Our senses help us interact with the world. Smell‚ hearing‚ sight‚ taste‚ touch‚ and external stimulus play a major role in shaping our perceptions of the surroundings and the world. To trust our senses means that we have justified belief of what we perceive is “true”. To what extent can our senses give us truth? In order to obtain a better understanding of under what conditions we can rely on our senses‚ we need
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William James Biography (1842-1910) By Kendra Cherry Timeline of Events: Born January 11‚ 1842 in New York City. 1869 - Received M.D. from Harvard. 1875 - Began teaching psychology at Harvard. 1882 - Death of William’s father‚ Henry James Sr. 1890 - Published The Principles of Psychology. 1892 - Turned lab over to Hugo Munsterberg. 1897 - Published Will to Believe and Other Essays 1907 - Published Pragmatism and officially resigned from Harvard
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of some kind. Kelvin also maintained an interest in the age of the sun and calculated values for it. He assumed that the sun produced its radiant energy from the gravitational potential of matter falling into the sun. In collaboration with Hermann von Helmholtz‚ he calculated and published in 1853 a value of 50 million years. He also had an interest in the age of the earth‚ and he calculated that the earth was a maximum of 400 million years old. These calculations were based on the rate of cooling
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Neurophysiology has been a subject of study since as early as 4‚000 B.C. In the early B.C. years‚ most studies were of different natural sedatives like alcohol and poppy plants. In 1700 B.C.‚ the Edwin Smith surgical papyrus was written. This papyrus was crucial in understanding how the ancient Egyptians understood the nervous system. This papyrus looked at different case studies about injuries to different parts of the body‚ most notably the head. Beginning around 460 B.C.‚ Hippocrates began
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in the Harvard School of Medicine. After traveling to the Amazon with naturalist Louis Agassiz‚ contracted measles and his experience was not as positive as he expected. Depression took over him and marched for Germany where he studied with Hermann von Helmholtz and became fascinated by psychology. He got a medical degree in 1869 but never practiced. Harvard offered him a job as an instructor‚ taught at Harvard for 35 years. James was the founder of the first experimental psychology laboratory in the
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clay’s job and done it themselves. The final hypothesis‚ called the Panspermia hypothesis‚ states that life originated from space and evolved from the asteroids that carried them here. It was presented in 1864 by Louis Pasteur‚ Lord Kelvin‚ Hermann von Helmholtz‚ Stanely Miller‚ and Harold Urey‚ but its strongest evidence was found more recently. There were microscopic organisms that survived exposure to space on a trip orbiting Earth. This supports that life could have formed on and traveled through
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Introduction Sigmund Freud was an Austrian psychologist who pioneered the study of the conscious and unconscious self. The famous psychoanalyst Sigmund Freud viewed the self as a multi-sided unit consisting of not only the conscious but also the unconscious realms. Sigmund Freud’s study of the self-conscious mind clearly challenged the way people viewed everyday life‚ the conservative and religious framework of the 19th century in many ways as well. One of his greatest impacts was how he changed
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Colour vision is the ability of any organism to distinguish different light based on their wavelength of light they reflect .The visual system derives colour by comparing the responses to light from several types of cone receptor in the eyes. Colour enable use to separate object form each other and from their background as different objects tend to have different colour. On the other hand‚ object of the same colour are grouped together. One of the most important functions of the human eye is to
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Matthew Norton. (1989). Energy and Empire: A Biographical Study of Lord Kelvin. (pg. 500). Cambridge University Press. [4] Thomson‚ William. (1862). "On the age of the sun’s heat"‚ Macmillan’s Mag.‚ 5‚ 288-93; PL‚ 1‚ 394-68. [5] Physics Timeline (Helmholtz and Heat Death‚ 1854) [6] http://www.physlink.com/Education/AskExperts/ae181.cfm [7] "An introduction to cosmological inflation". proceedings of ICTP summer school in high-energy physics‚ 1998. Retrieved 2006-09-09. [8] "Black holes and thermodynamics"
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10/22/2012 Communication Along and Between Neurons (Ch.6) • Receptors receive stimuli‚ and convert them to nerve impulses • Alternating graded and all-or-none signals on the membrane of a single neuron • Graded potentials decay with distance (electrotonic conduction); longdistance transmission depend on transforming signals to APs • Typically‚ alternating electric (within neuron) and chemical signals (between neurons) • Postsynaptic potential affected by number and frequency of APs
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