Skip to main content

Higher Levels of Perception

First of all, I do not condone the usage of any of the drugs discussed in the article. I am simply interested in their effects on the mind and our perception of the world.

As we have learned throughout the course of the semester our mind and sensory systems are constantly interacting and rely on each other to create each individual perception of the world. This particular article is incredibly interesting. Using Magnetoencephalography (MEG), a neuroimaging technique used to map brain activity by recording magnetic fields produced by naturally occurring electrical signals in the brain, these researchers were able to discover an increased diversity in spontaneous neural signals when under the effect of psychoactive doses of LSD, psilocybin, and ketamine. More importantly, these neural signals were occurring more often than during states of normal waking consciousness. Because of how intertwined our consciousness and sensory systems are, it is reasonable to connect a higher level of consciousness with a higher level of perception. The article is quite complicated when it gets down into the nitty-gritty science aspect of the experiment but the results are stimulating and really interesting to consider when thinking in the context of what kind of effect that must have on our perceptual systems. Are we perceiving more than during normal waking consciousness? When thinking about perception using the predictive coding model, if our brain is working differently, maybe our predictions coming in from the top change dramatically and that's why we experience the world in that way? Definitely many different ways of thinking about how in changing our consciousness we can change our perception of the world. Enjoy the read!

https://www.nature.com/articles/srep46421

Comments

Popular posts from this blog

Negative Afterimage

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

Typoglycemia and Predictive Coding

https://www.mrc-cbu.cam.ac.uk/people/matt.davis/cmabridge/ This article was the basis of my presentation in class, but due to the 5 minute time limit I was only able to mention a fraction of the information. The page focuses on the original "copypasta" text: Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. He breaks this down sentence by sentence, first doing a quick search to see if there's actually research being done at Cambridge University on the topic (there's not). He lists a multitude of studies that are relevant to the orders of the letters, the impact these jumbles have on reading speed, and more. The article makes a strong case that we read wo...

Illusions that Confuse Multiple Senses

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