Thursday, March 29, 2012
Epidemic Stimluation
In my opinion, I think the main thing that impacts the amount of people who die from an epidemic disease is the amount of carriers who possess the disease in the first place. In the first map, when there were more carriers of the diseases, this resulted in more sick people, and in the end more deaths. 30 carriers caused 11 people to be sick, and these 11 people caused 573 deaths.
As for the second map, there was less carriers and this resulted in less deaths. In here, there was a reduced amount of deaths. In this map, there were 0 carriers and there were 44 deaths. Compared to the first map, the amount of deaths here were way less. From this, I conclude that the amount of deaths depend on the amount of carriers that have the disease. More carriers means more deaths.
Thursday, March 15, 2012
Bow Careeers and Nervous System Quiz
After taking the quiz, I discovered that I am a 'Renaissance Ideal. I am classified as an introverted thinker. This means that I tend to analyze the actions of others, understand other people, and wish to understand many concepts I do not know.
Ways that I study include
1.) Contemplating
2.) Considering my actions and thinking up ways to improve myself
3.) Realizing how my actions affect others around me
Some careers for an introverted person would be psychologists, teachers, pilots, explorer, and drama therapists.
http://www.bbc.co.uk/science/leonardo/thinker_quiz/results_and_answers.shtml
3 things I learned on how my body is wired
-Nerve impulse travel from the brain to the large intestine by the scrum and lumbar
- The central nervous system consists of the brain and the spinal cord
-The cerebrum makes up the frontal lobe of the brain
Ways that I study include
1.) Contemplating
2.) Considering my actions and thinking up ways to improve myself
3.) Realizing how my actions affect others around me
Some careers for an introverted person would be psychologists, teachers, pilots, explorer, and drama therapists.
http://www.bbc.co.uk/science/leonardo/thinker_quiz/results_and_answers.shtml
3 things I learned on how my body is wired
-Nerve impulse travel from the brain to the large intestine by the scrum and lumbar
- The central nervous system consists of the brain and the spinal cord
-The cerebrum makes up the frontal lobe of the brain
Monday, March 12, 2012
Vision and Perception
Vision and perceptionhttp://www.google.com/imgres?imgurl=http://www.99main.com/~charlief/theeyebg.gif&imgrefurl=http://www.99main.com/~charlief/Blindness.htm&h=330&w=395&sz=11&tbnid=6gjKSvNk3ssM7M:&tbnh=90&tbnw=108&zoom=1&docid=gpBlbAqAWXW1CM&hl=en&sa=X&ei=D7BeT5vnNOPaiQLr7eTcBA&ved=0CC4Q9QEwAA&dur=353
What is a mach line? What makes it disappear?
To begin with, mach bands are an illusion that has to do with the eye. Mach bands consists of two bands, one that is light and one that is dark. The mach line is the line that separates two mach bands we see in an image.
Draw and label a picture of the eye.
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Explain what refraction is and how it relates to vision.
It is the phenomenon of the light, radio waves, etc that gets deflected due to it's speed. Vision has to do with refraction because it measure the eye's refractic error, which is farsightedness or nearsightedness.1.)Convex lens: Lens with a that curve outward. Convex Lens are used to see objects that are near you.
What are the two kinds of lenses? Which is in your eye?
2.) Concave lens: Lens that has at least one surface that curves inward of the eye. This len is the one that is located in the eye.Cones is what perceives color and they are located in the fovea. Rods are photoreceptor cells that are responsible for seeing when there is little light, which is called scotopic vision.
What are rods and cones and what do they do? Where are they located in your eye?
What are the steps of phototransduction?
The first step to phototransduction is the incident photon and it triggers the rhodopsin by changing the disk membrane. The next step is that the R* makes interaction with the transducin molecules, which activates the G* from the release of GDP which turns into GTP.
How do your eyes adjust to different light levels
The iris plays a main part in helping our eyes adjust to different light levels. For example, when a person is walking from a light room to a dark room, the iris constricts. In this way, the amount of light our eyes take in decreases. This is how our eye adapts to different light levels. To adapt to lower levels of light, the retina constricts and to adapt to higher light levels, the retina enlarges.
Skip to visual fields
What is your visual gap?
There are flaws in our ability to perceive vision.
Explain retinal mapping and visual pathways.
Retinal mapping is the mapping of the whole retina. Visual pathways are routes the retina takes to get to the brain. The pathway has an optic nerve and an optic chiasm.
Describe three diseases of the eye.
1.) Glaucoma: A disease where the optic nerve is damaged resulting in possible blindness.
2.) Cataracts: The clouding of lens. Symptoms include colors that appear to fade, blurry vision, and horrible night vision.
3.) Conjunctivitis: It is the inflammation of the conjunctiva, the tissue that lines the inside of the eye. Symptoms include and abundance in tears, red eyes, blurry vision, and itchy eyes.
Thursday, March 8, 2012
Diease for one of the senses
Glaucoma: It is a disease where the optic nerve is damaged, thus resulting in the damage of our vision. In an extreme case of glaucoma, one can become blind.
Causes for glaucoma include:
-Ocular hypertension: the increased pressure in the eye
-Poor blood flow
-Damage of the optic nerve
Symptoms include:
-eyes that are red
-nausea
-vomiting
-severe eye pain
-headaches
-seeing halos we you see light
-blurry vision
Ways to Treat Glaucoma:
Medication: One could take drugs such as beta-blockers, Prosagladin analogs, carbonic anhydrase, and inhibitors. These drugs decreases the amount of aqueous fluid in our eye. By doing so, one can reduce the pressure of the eye. Since the cause of Glaucoma is the result of intraocular pressure, by decreasing it, we can reduce the amount of damage the optic nerve experiences.
Surgery: Laser surgery is another way to treat Glaucoma.
http://www.google.com/imgres?q=glaucoma&um=1&hl=en&sa=X&biw=1024&bih=677&tbm=isch&imgrefurl=http://800eyeworks.com/eye-disorders-2/glaucoma/&tbnid=RFfJh6i-CzkvVM&docid=EkfoVGYuFMSJ-M&ved=0CEMQhRYoAg&dur=10301
Causes for glaucoma include:
-Ocular hypertension: the increased pressure in the eye
-Poor blood flow
-Damage of the optic nerve
Symptoms include:
-eyes that are red
-nausea
-vomiting
-severe eye pain
-headaches
-seeing halos we you see light
-blurry vision
Ways to Treat Glaucoma:
Medication: One could take drugs such as beta-blockers, Prosagladin analogs, carbonic anhydrase, and inhibitors. These drugs decreases the amount of aqueous fluid in our eye. By doing so, one can reduce the pressure of the eye. Since the cause of Glaucoma is the result of intraocular pressure, by decreasing it, we can reduce the amount of damage the optic nerve experiences.
Surgery: Laser surgery is another way to treat Glaucoma.
http://www.google.com/imgres?q=glaucoma&um=1&hl=en&sa=X&biw=1024&bih=677&tbm=isch&imgrefurl=http://800eyeworks.com/eye-disorders-2/glaucoma/&tbnid=RFfJh6i-CzkvVM&docid=EkfoVGYuFMSJ-M&ved=0CEMQhRYoAg&dur=10301
Thursday, March 1, 2012
Blog 5 What is the Significance Of Brain Plasticity, and How the Brain Has to Do with Fetishes
Brain plasticity is the ability to change how one thinks and acts at any period of time in life. We need brain plasticity because this is the thing that determines one's skills and weaknesses. Brain Plasticity can assist an individual when it comes to learning new concepts. If one does brain plasticity exercises, it can help people who have mental illnesses such as schizophrenia. A fetish is an odd attraction to an inanimate object. The brain ties in with fetishes because it is the brain that processes the object and makes a person aroused when they see a certain object.
Wednesday, February 29, 2012
How Your Eyes And Brain Can Play Tricks On You
When we look at something, we believe what we are seeing. Nevertheless, eyes can play tricks on us. The reason why one perceives an object in a certain perspective is optic illusions. Optic illusions is a phenomenon that changes how one sees an object. This phenomenon happens because of how the human eye interprets shape, size, lines, and etc. Our brain plays tricks on us by perceiving something in a way that is not real. For example, we humans have this misconception that less hardships will lead to a happier life. Nevertheless, it actually leads to a life of boredom and sadness. As I have said, sometimes what our brain tells us is not always what the situation may be in reality.
Saturday, February 25, 2012
Bow How The Sense Of Taste Works
As we all know, taste is one of the five senses that we humans have. The eyes, nose, tongue, nose, and brain play a part in taste and they make sure that we consume healthy substances instead of rotten foods. The thing that allows us to taste food are called taste cells. There are five types of tastes: sweet, sour, bitter, salty, and umani. Besides taste cells, olfactory cells play an essential part in the sensation of taste. Olfactory cells, which are located in our nose, picks up smells. Taste is a combination of smelling food and tasting it with our mouth.
Link http://www.wisegeek.com/how-does-the-sense-of-taste-work.htm
Link http://www.wisegeek.com/how-does-the-sense-of-taste-work.htm
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