Skip to main content

Finding the Blind Spot in Your Field of Vision

Each of your eyes has a blind spot on the retina. This blind spot is where the optic nerve connects to the retina. Watch this video to find your blind spot.


The reason you cover one of your eyes is to prevent that eye from compensating for the blind spot in the other eye. Without that compensation, your mind then fills in the blind spot with surrounding visual stimulus. In other words, if you used a white 3 x 5 card then you noticed that the dot disappeared into the white of the 3 x 5 card.

Video by Dayton Koons
Voice by Emme Packer

Comments

  1. In fact, if you are paritally blind as I am, your mind can create a visual where none exists.

    ReplyDelete

Post a Comment

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

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

Visual Perception- Spinning Dancer

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.