https://www.youtube.com/watch?v=kO1kgl0p-Hw&t=41s The video displays the power of the brain and the ways the brain can be tricked into doing things that would usually be out of someone's capabilities Two people were randomly chosen to shot free throws in basketball blind folded and then they took them of and shot them without. The first person missed all 10 blindfolded but was told that they were close or they went in when they didn't but when she took the blindfold off and shot them they were much closer and some actually went in, proving that the brain can be tricked by positivity. This relates to perception because if you tell yourself you can do something or someone is hyping you up into thinking you could do something you and your brain will preform better than with negative attitudes.
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In this video, Meredith Leston talks about body dysmorphia (anorexia) and the struggles she went through during that time. She talks about how when she looked at herself in the mirror her perception of herself was different of what was actually there. When Meredith looked in the mirror she saw an over weight version of herself that wasn't even there which made her keep starving herself. This shows how when someones perception is off it can affect someone in a real negative way.
This video is a prime example of how advertising companies use priming to get us to buy their products. The break down of how this process precisely works starts with an experience, which then leads to creating a stimulus that then sends a signal to start the process to perceive the experience by recognizing the stimulus by incorporating prior knowledge, opinions, and beliefs. This experiment exemplifies how we perceive the world around us, and how the images surrounding our daily activities can influence what we think. By the subjects incorporating all of the images that were strategically placed along the subject's route to the office, supports that perceiving is believing. Many advertising companies take advance of the fact that we believe what we perceive through subliminal advertising, which works by subconsciously appealing to viewers, or at least to help them to visually remember the product that is being showcased.
This relates to what we’ve discussed in class because of the visual perception aspect and that the ability to perceive motion is very important to daily life. Shadows or visual cues can change your visual perception of an object and the motion. This relates to the bottom-up processing because its about processing information. Bottom-up processing deals with sensory information. We perceive the dancer turning one way because the cues we receive from our experiences affect what we perceive. What you perceive is based on the sensory information that is coming in.
The human mind is capable of so many. different things that are turly incredible but most of the these incredbile things we take for granted. This article shows us the simple visual aspects and how our braing forms them within our mind. Throughout the article there are examples for different kinds of laws. These laws include Law of Proximity or Nearness, Law of Similarity, Law of Good Figure or Symmetry, Law of Closure, and Law of Continuity. All of these laws sound complicated and you amy assume that they are complex, however they aren't anywhere near that level. They are rather explnations for the reasoning behind why we perceive what we perceive. https://www.online-therapy.com/blog/human-perception-fascinating-facts/
In this YouTube video, "How Magicians Trick Your Brain," it shows how not only how magicians know how to fool their audience, but how ones brain fools them as well in the process. I connected it to the topic we talked about in class the top down processing. Our brain is using top down processing because as the videos shows the coin trick, from prior knowledge and experience ones brain doesn't even realize the passing of the coin thats right in front of there eyes and actually believes it appeared in the magicians hand when really the magician passes the coin into the other hand. The brain uses the top down processing and believes magicians will actually pull the coin from behind ones ear or have it magically appear in their hand, so it doesn't acknowledge whats actually going on. It's perception is based off prior knowledge and experience using the top down processing and I found that that processing plays a big role in how magicians are successful to pull off the
In this video, several illusions are shown that deceive your senses. Illusions such as the Zöllner Illusion and the Poggendorff illusion confuse our bottom up processing by tricking our vision. However, our vision isn't the only sense that these illusions can confuse, blind individuals presented with raised versions of the same illusions are also confused by them. These illusions effect the visual and touch systems by confusing our bottom up processing by tricking out sight and touch. https://www.youtube.com/watch?v=Je1mkzRU5rc&t=64s
Reber Shukri Professor Vaughn Negative afterimage is a stimulus which elicits a positive image. In order to experience this, one can look at a bright source of light and then look away to a dark area. The way negative afterimage works is when the eye's photo-receptors which are the rods and cones adapt to over stimulation and lose sensitivity. The photo-receptors which are constantly exposed to the same stimulus will fatigue their supply of photo pigment, resulting a decrease in signal to the brain. The way negative afterimage connects to perception is because of bottom up processing where the stimulus influences what we perceive. https://www.youtube.com/watch?v=szy8iNCljlQ <Link to the video
Unlock your super senses In this video, there is volunteers to listen to certain sounds and their reaction to the sound. The first noises they had the volunteers listen to was good vibrations, but the people who were performing this experiment was controlling the sounds from behind. After everyone heard good vibrations, they started to hear bad vibrations. The bad vibrations were nails on a chalkboard, a ballon, dentist drills, and vomiting. The volunteers reactions to these sounds were their brain telling them but these sounds were bad vibrations compared to the good vibrations. The sense modality plays a role in this video because of the sounds because the volunteers heard the different sounds and reacted to them because their brain knew if it was a good vibration or bad vibration.
Priming is used as evidence for predictive coding. Our brains use the previous words in the list to anticipate what the fifth word should be, even though it really could be anything. This is a n example of top down processing because your brain is making predictions about what the fifth word should be, and therefore anticipates it, and influences what we think the fifth word should be. It is using previous knowledge of grouping these things together to produce an answer for the fifth word.
A schizophrenic process is more of a bottom up process than a top down which is what we do. We are unable to see a hollow face at first because we have never seen that before in our prior experience. This illusion occurs because the brain interprets information based on context and previous experience, or top down processing. In schizophrenic people there is a dysconnectivity between the parietal cortex, where top down occurs, and the lateral occipital cortex, where bottom up occurs, which is why they see the hollow face right away. In healthy people the connectivity in these areas are increased which is why they see a regular rotating face
In this video the waiters and waitresses give the customers a water menu with fancy different names. They then taste the differently packaged water. Since they were convinced that they were actually different types of water, they were comparing them and actually tasted a difference. The reasoning behind this is, since they were told that they were different, they believed what they were told. They perceived what they expected it to be. This is is an example of how your expectations mess with your view of the present. Therefore, they tasted the water to be different but in reality it was tap water the whole time in different bottles.
In this video, they discuss how your sense of hearing can be confused based on what you are seeing. This video proves that what your senses are telling you is not always true. At one point it shows the tower bouncing and some people hear a thud when it hits the ground even though the video does not have a thud sound. This is just one example of how senses can affect each other.
I found this article through an interest in the “what do the blind “see” when they dream” question, as it was formulated by Eliezer Sternberg. I was originally skeptical about the idea that the blind have a completely non-visual interpretation of an isotropic model of space. I decided the synesthetic hallucinations induced by classical tryptamine hallucinogens might could provide interesting evidence as to how the blind experience internal models of space. I queried “congenitally blind” and “tryptamines" and found a number of reposted iterations of the following article. https://www.iflscience.com/brain/blind-musician-reports-senseblending-synesthesia-on-hallucinogens/all/ They all referenced, in one way or another, the case study linked below that can be accessed via the proper credentials or by paying a fee. https://www.sciencedirect.com/science/article/pii/S1053810017305743?via%3Dihub In short a congenitally blind Russian rock musician, who chose to self identify as
Perceptual Views from Outer Space This video shows how perception differs from Earth and outer space. Astronauts suffer from dizziness and nausea for about the first 24 hours. It is believed the human vestibular system is messed up outside of earth’s atmosphere. This is because the fluid in the inner ear is in microgravity, which leads to abnormal signals being sent to the brain from the ear that contradict signals sent from the eyes. The sensory system then becomes more reliant on the information gathered by the eyes and allows astronauts to adjust and stop the feelings of dizziness, nausea, and disorientation. Allowing astronauts to move freely in all different orientations without having the same feelings of dizziness as an individual would on earth. For example, spinning in a hamsterball ball on earth, as many times as the man in the video did the outcome would be much different leading the participant to feel nauseous, dizzy, and or sick. Using cross modality and util
https://www.youtube.com/watch?v=2xY9XbrsfWM In this video, it talks about the "rabbit, duck" image. This image relates to the idea that when you look at something, it can be perceived differently by everyone that looks at it. Your perception of something can also be influenced by the time of year or your mood at the time. An example of this is used with the "rabbit duck" image. In the video, it says that whether you see a rabbit or a duck can be influenced by the time of year. If you look at it during Easter time, you may be more likely to see a rabbit rather than a duck.
https://www.youtube.com/watch?v=xRgtB5SuzGk This video shows how forced perspectives can trick our brain into thinking that something looks like one thing, such as this spider looking like a giant spider, when in reality it is something else. The spider is walking on the windshield in the perfect spot where the dash cam was and made it look like it was about to eat the police officer.
McGurk Effect Video The Perception that I presented on is the McGurk Effect which is when sound alters the perceived sound. This is also seen as an auditory illusion. This is also the use of multimodal perception which is what we are learning about in class now. This meaning that the senses work together to perceive our world. This video gives examples of the McGurk effect and how easy it is to be confused when only one sense is working.
Grant Albano-Richardson imagine seeing things all the time that other people can’t? Tetrachromacy is what 12% of the female population live with every day. Women with this condition are able to see much more diverse color spectrum that is 100x greater than that of a normal person. Not every person with tetrachromacy can actually see more colors though. Some people have the condition but are unable to actually make any use of it. The reason they are able to see more colors is because of a fourth cone in their eyes. This is most likely caused by a genetic mutation in one of our light absorbing opsin molecules. Most people have three normal cones that make up what we see. These pictures above are by artist Concetta Antico, a woman with this condition. As you can see they look very colorful and almost fictional. It is hard for people who don’t have tetrachromacy to see what they artist actually envisioned while creating this, but you can kind of imagine what she sees.
https://lifehacker.com/how-optical-illusions-trick-our-brains-1790829333