Can you explain the Yerkes-Dobson law to me? it has something to do with psychology - stress. please help!?
339393
It says performance depends upon the state of arousal. You will do better on a test if you are awake than if you are sleepy. If you want to do well vs lethargy.\nDoes not say anything about being prepared, smart, capable. So as you are more aroused, it may only help a little. There is no simple correlation. Perhaps this works better in the negative. A perfectly capable student does worse, the more sleepy during the test. What constitutes arousal?\nAnxiety may only diminish performance, but appear to increase arousal.
943193
woah, way to put it off to the lats second! Do a project on stress, and why its good not to put things off to the last minute. (im not kidding, this could be a good project) =)
230122
Are you sure there is a relationship between these variables?  \n\nCan you define pressure tendency? Do they make a pressure tendency gauge?
844842
I'm pretty sure it's called the Coriolis Effect. You can look it up.
1098077
First Student A stays out all night partying (first step), Student A then goes to class the next morning and gets a mind cramp due to pop quiz (compaction factor).  Student A then, totally fried and unable to pull anything out of his cramped brain, slumps down in his seat (slump factor) which causes him to nod off. \n \nResults of the sieve analysis show that  Step 1 (partying all night) leads to mind cramping (thus, losing all facts relevant to test leak out of mind like water through a sieve) resulting in total slump in posture and responsiveness of Student A.
443660
Somebody made a hypothesis that says there is a relationship between thing A and thing B. A relationship does not say that A caused B or that B caused A, just that knowing about the state of A tells you something about the state of B. \n\nFor example, I could hypothesize that there is a relationship between people's stress levels and their body temperatures, but not be able to say that running a fever is the result of or the cause of stress.
1045245
An interesting study. I think there might have been an element of stress with the people who knew they would be prayed for - like performance anxiety - and stress can adversely affect heart patients. \n\nThe study you refer to was about church groups praying for strangers in hospitals, and there's a general consensus that this type of prayer has no effect whatsoever. But there seems to be a psychological benefit in well wishes from people we know - like a virtual hug - and most of us respond well to that.
394518
There was actually a very interesting article about the chemistry of love in "National Geographic" magazine a few months back. You should google their website and see if they have any info about it there.\n\nOne interesting note that I recall from the article: the chemical profile of the brains of people who are in love is very much like that of a bipolar person. In other words, love is a psychological disorder.\n\nScary, ain't it?
837786
In my opinion, the real world is harder than college, but maybe I was just better able to deal with the stress when I was younger!  Actually, I think it is a different type of stress - homework, term papers, exams, etc.  Those who are good at managing their time tend to do better and get less stressed.  Older students often make better students because they appreciate what an education can get you, and they don't do stupid things like stay out all night partying and getting drunk instead of studying.
161194
Biot-Savart Law. Look it up.
645900
Boyles Law PV/T I think. Anyway it has to do with the relationship of Pressure to Volume. If one increases the other decreases. Its useful in industry in making liquid Nitrogen and has endless applications in dealing with gasses in Chemisrty and Physics.
567361
do you have a link to that study? sounds interesting but i'm not familiar with it.
7022
Wow, that is a LOADED question. There are numerous variables the determin psychological responses in any species. Fear would be an emotional variable and environment would be physical variables (cold, wet, hot, ect.). Try to be a little more specific. ANYHOW, time for this question to finally end! Vote!
145763
Linmar--i want to propose MY personal theory, which cannot be scientifically proven in any publication to date.  I had a vision one evening after watching a show about spontaneous combustion victims.  One victim was a middle-aged man with a stump for an arm.  He described the event as a mild tingling with no pain, and much to his dismay, his hand and most of his forearm turned to ash.  \n\nUsing his experience, this isn't about fat burning, or too much oxygen, or even about oxidation as we know it.  The material in our bodies has stored chemical potential energy.  We have internal heat generation which keeps our bodies warm.  It is like a clock spring slowly unwinding.\n\nNOW, if you sped up this clock, relative to normal time-space, your energy would dissipate so rapidly, that the object WOULD turn to ash due to the release of heat.  If a human arm dissipates 10 watts every second for the lifetime of the arm, say 70 years, that equals 22*10^9 joules.  THAT"S A LOT OF ENERGY.  Now for instance, if for some reason a time-space continuum intersected with the man, if his arm actually was accidentally inserted into another dimension whose time constant was 100 times our speed, his arm simply aged and died.  All the energy that would have unwound in this time space over the course of 70 years, unwound in minutes or seconds.  If there are time-space defects and other dimensions, it makes sense that entropy may not unwind at the same pace in all spaces.  \n\nIt reminds me that the earth is travelling at thousands of miles per hour through space.  We have no perception of this at all.  But put a cosmic bed post by the earth, and have an impact, BAM!! Bye-bye earth.  I think it is the same thing.  For some unlucky reason, I beleive this particular man had an interdimensional event wherein the potential energy in his arm dissipated very quickly in that other dimension.  \n\nFood for thought--tell me whatchya think.
433712
I have heard that the barometric pressure cause headaches and moodiness in people when it gets high. Also exessive heat would effect ones ability to function normally.\n\nHope this helps
1165853
It's somehow conneted with the gravitational pull on the earth, causing the tides and apparemtly causes some tidal work in the minds of some people too!Alot of people I know have gone a bit loop recently...
21700
Stress is simply a fact of nature -- forces from the outside worldaffecting the individual. Hence, all living creatures are in a constant interchange with their surroundings (the ecosystem), both physically and behaviorally. This interplay of forces, or energy, is of course present in the relationships between all matter in the universe, whether they are living(animate) or not living (inanimate). However, there are critical differences inhow different living creatures relate to their environment. These differences have far reaching consequences for survival. Because of the over abundance ofstress in our modern lives, we usually think of stress as a negative experience.But from a biological point of view, stress can be neutral, negative, orpositive. \n\nStress has driven evolutionary change (the development and natural selectionof species over time). Thus, the species that adapted best to the causes ofstress (stressors) have survived and evolved into the plant and animal kingdoms we now observe. Man, because of the evolution of the human brain, especially thepart called the neo-cortex, is the most adaptive creature on the planet. This adaptability is largely due to the changes and stressors that we have faced and mastered. Therefore, we, unlike other animals, can live in any climate orecosystem, at various altitudes, and avoid the danger of predators. Moreover, most recently, we have learned to live in the air, under the sea, and even inspace, where no living creatures that we know of have ever survived. So then,what is so wrong with stress?\n\nA brief history of stress\nA key to the understanding of the negative aspects of stress is the conceptof milieu interiur (the internal environment of the body), which was first advanced by the great French physiologist, Claude Bernard. In this concept, he described the principles of dynamic equilibrium. In dynamic equilibrium, constancy, a steady state (situation) in the internal bodily environment, is essential to survival. Therefore, external changes in the environment or external forces that change the internal balance must be reacted to and compensated for if the organism was to survive. Examples of such external forces include temperature, oxygen concentration in the air, the expenditure of energy, and the presence of predators. In addition, diseases were also stressors that threatened the constancy of the milieu interiur.