Perception Definition and 134 Threads

  1. S

    Does Acceleration Affect a Distant Observer's Perception?

    I asked a question similar to this a while ago but I couldn't get a straight answer; I think because of the way I worded the question so I am going to try again because I am really curious about the answer. I have read that a distant observer will see an object slow down as it approaches a...
  2. H

    Medical I'm looking for some general information on human acoustic perception

    Hello everyone, I'm trying to put together a computer program that will convert codes into sounds that can be quickly and accurately picked up by the human ear. For instance, it needs to take "0048" and turn that into a sound, that will be different from "0049" or "1148", and a person...
  3. L

    Perception of Color: Separating the Physical from the Supernatural

    For some people there seems to be something which is color that exists outside of electromagnetic radiation. As the typical question goes "Is your red my green?" I don't understand the argument though. If we look at what we mean by color the only thing we can possibly say is: "Well when my optic...
  4. moe darklight

    Shows Like House, CSI, Numb3rs, The Mentalist etc. And Public Perception Of Science

    It seems like a growing trend for shows now to focus on characters who are critical thinkers and atheists (as opposed to, for example, in the 90's, when it was cool for characters to be psychics, or angels, ... or some other sort of paranormal type thing). So just wondering what everyone here...
  5. 0

    How does sound localization vary with distance and frequency?

    Hi there, This is not a homework question. I am currently conducting a visual perception experiment with a professor. We are trying to find out how duration of a sound presented concurrent with a visual stimulus affects the localization of the visual stimulus which participants have to...
  6. O

    Is duality inherent in perception?

    I had a thought about this earlier, and it seems to make sense to me right now but maybe someone else has some input. The idea is basically that wherever there is perception, there is a duality. Perception can be any sensory input also. How are we to examine the thoughts of a person, the...
  7. H

    Perceiving Color: A Preschool Scenario

    Ok, so have little philosophy background other than a few undergrad classes so I apologize if this is just plain ridiculous. This is a scenario I have pondered for awhile now and I wanted to see what everyone else thinks. [begin scenario] A simple scenario; two children in preschool (child A...
  8. Ivan Seeking

    Medical How Does the Human Eye Perceive Color?

    Very interesting: http://www.sciencedaily.com/releases/2005/10/051026082313.htm
  9. S

    Reality as Perception and Experience

    thought it would be cool to put this here to get some input from other people and possibly people who have a much beefier academic record than myself :p Basically my thesis for my philosophy course: we can only know reality from experience and perception. my arguments are: humans have a...
  10. N

    Morality and Perception: Defining Good Morals

    What is morality, really? Each person would have a different set of morals, I suppose. So if I think gay marriage is right, but a majority doesn't, do I have bad morals? How do you define good morals anyway?
  11. V

    Our skewed perception of galaxies

    Our perception of what a galaxy looks like is inherently skewed given that the immense size of the galaxy itself provides a lopsided picture. If viewed from any angle other than directly head on, the closest point of the galaxy will be a much more recent picture than that of the far end, by...
  12. W

    Is the Perception of Objects Relative to Our Senses?

    What is an object (I will use the term here to signify a coalition of matter and energy)? It seems that most do not contemplate the question; the understanding of what an object is, for most, is subconscious and never comes to the forefront of their minds. A child will point out at an object...
  13. B

    Medical Is Time Perception Acceleration a Real Phenomenon?

    Hi, I am new to the forum and I've been wanting to ask others about time perception but haven't gotten to it until now. Ever since I was little (and my sister used to have it as well, but neither of my parents), every once in a while time seems to speed up in my mind when I know time isn't...
  14. S

    Is it true you lose depth perception when looking out of one eye?

    I've heard this a lot - that you lose depth perception when looking out of only one eye. So I have to ask - is this true? When I try it everything looks exactly the same to me. :confused:
  15. M

    How Do Different Perceptions Affect Human Communication?

    Hello, Nowdays I'm getting confused about what happens when our perceptions are not the same as the other? As it has been discused before in this forum, Two objects can never be exactly the same as the other, which is completely logical. As a result the perception of two different human...
  16. D

    How Fast Do We Perceive Light Compared to Its Actual Speed?

    If nothing can travel faster than light.Then i am confused as to how i am able to perceive light seemingly the instant i open my eyes.Is the speed at which i can perceive comparable to that of light?Shouldn't the matter withwhich my brain is constituted not significantly impede the...
  17. Simfish

    Medical Time Perception - YES, IT IS SUBJECTIVE

    Essentially, research is now showing that time IS a subjective thing. For example, there is the often held notion that time passes faster as you grow older. Scientific experiments actually seem to be showing that hypothesis to be partially true, in part due to declining dopamine levels in...
  18. A

    Measuring Perception of Line Separation at Varying Distances and Light Levels

    ive done a test were, i get someone to try and distinguish to lines that are 0.25mm apart from varying distances. then I am going to do some kind of calculation to tell me somthing (hopefully) and i have done this experiement in different light levels, controlling the lux. and i have...
  19. C

    The early perception of light ?

    here's one for the physics buffs... at the first stage of the perception of light, a photon(s) bleaches/is absorbed by rhodopsin in the retina, breaks apart and an intercellular cascade occurs. a photon is an individual particle, right? so when we perceive light, can we only perceive it as a...
  20. L

    Light's reflection - wats ur perception?

    hi all one basic question in physics aroused owing to my poor memory. i vaguely remember that there is a difference in the colour of the object we see in reality and that generated by a television or for that matter any artificial source of light. 1) Now how does our eye perceive these (...
  21. S

    Medical Color Perception: Differences in Perception & Logic

    I like some colors and you may be some other. But is it possible that you and me are liking the same colors, but have different names fot it. The wavlength that produces a sensation of red color in my brain, is producing the sensation of green color in yours and that which produces red in you...
  22. P

    News Your perception of Bush compared to 2001/2002?

    Conservatives are criticizing bush increasingly. What is interesting (to me) is that they consider him to be "leading us differently" than 4 years ago. I am curious if this sense that the nature of his leadership is changing, is typical among conservatives. As a liberal, I feel that he is...
  23. L

    Is Watching Your Surroundings Like Viewing a Movie at the Speed of Light?

    Hi everyone, I'm new to this forum. I'm not a physicist or a mathematician, but do try to make sense of the way things work. My question is - is it safe to generalize that sitting on a park bench, watching your surroundings is like watching a movie who's frame rate is the speed of...
  24. A

    What Is the Nature of Perception and Existence?

    When I was about five, I was haunted by a shocking dream. I dreamt (it was more like a feeling than expressed in verbal thoughts) that I am all alone in existence, and is the sole consciousness of the universe. The people around me all mere products of my thoughts. I continued to be haunted...
  25. dextercioby

    Survey:What is your perception of canonically quantizing a free field?

    Survey:What is your perception of canonically quantizing a free field?? The idea came to me when i searched through different QFT books in order to get a unitary picture of this issue,which historically emerged in 1926,i.e.of describing particles through quantum fields.I'm refering,in...
  26. Kerrie

    How does the Earth's atmosphere affect the perception of color in space?

    When astronauts travel to outer space, the moon, etc, can their eyes still perceive color?
  27. E

    Have you tried Salvia Divinorum and unlocked a new perception of reality?

    Theres a plant out there called "Salvia Divinorum". It's legal, and is usually smoked in extracted form.. It's a perception altering drug. I frown upon any kind of drug abuse or abuse to the human body, but this drug is truely amazing as to what it does to the mind, and i believe research...
  28. B

    Is Perception of Color Universal?

    is it possible that everybody sees different colours but we don't realize because people are taught what colour is what according to things in the world? example, everyone is taught the sky is blue, but what if everybody sees the sky as a different colour, no matter what they see they would...
  29. A

    Perception of Time: How Energy & Gravity Affect Our View of Time

    Here's how I think time works. Our perception of time is based solely on energy and the rate at which it can be transferred. Taken at its most basic unit, it is the transfer of 1 unit of energy across a distance of 1 Planck Length. The velocity is constant at the speed of light. All matter...
  30. K

    Light Perception: Exploring Einstein's Velocity Addition Formula

    Now, I got this from a very reliable source, an encyclopedia to be precise, so I know it's correct and goes according to the Einstein velocity addition formula. My question is, why? Question 1: Is it because a person can never "perceive" something coming at them faster than the speed of...
  31. P

    Discernment , duality and perception ,singularity (not black hole)

    Hi, I'm looking for some help with a visual art project. Mainly does anyone have any ideas defining the diferences between discernment and duality with perception and an idea of singularity. Thankyou for your help and input.
  32. E

    Would the concept of empty space exist without depth perception?

    For the past few thousand years or so, the philosophy of space has occupied a lot of time among philosophers. There is really no argument as to the traditional definition of "space" as it usually relates to volume, being length width and breadth. But the big debate has typically been over the...
  33. W

    Has knowledge changed perception of reality?

    When I first learned long ago that huge moon during moonrise is not optical distortion, but pure human mind produced illusion, I was quite astonished. http://www.amnh.org/naturalhistory/city_of_stars/21_full_moon.html It is explained away by fact that for human, atmosphere above seems...
  34. M

    Color & Perception: Scientific Labeling vs. Subjective Perception

    There was a line of debate that was started in the old PFs, but it was never finished, and I'd like very much to continue it. The following is the conversation: You see, I would reply that all Alexander did was give the Scientific labeling of that which we percieve (color).
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