In this video, the concept of ghost illusions is explored, which are images that continue to appear in one's vision even after the original image has been removed. The video discusses the two types of ghost images - positive after images...

Pepper's Ghost is a popular special effect used to generate a ghost-like image. It's been used in plays, haunted houses, and more since the 1800s. Learn how the optical illusion works and test it out yourself!

Why does the moon sometimes look really big at night and other times appear very small? This phenomenon is called the Moon Illusion. Learn why it happens and a couple ways to override it.<b<br/>r/>

Illusions part 4/11

In this video, we explore the concept of ghost images and how our visual system can sometimes deceive us. Through optical illusions and tricks, we learn that what we see may not always be what it appears to be. It's a fascinating...

The visual world humans perceive is produced by parts of the brain lying outside of the visual cortex.

The autokinetic effect causes us to see objects in the distance as moving when they're actually stationary. The more tired we are, the more likely this is to happen. Learn more about autokinesis!<b<br/>r/>

Illusions part 3/11

This video explores the concept of optical camouflage and the use of retroreflective materials to create the illusion of invisibility. It showcases the works of artist Desiree Palmen and the invention of the Invisible Cloak illusion by...

This video explores the Stroop effect, a phenomenon that occurs when the brain's reaction time slows down due to conflicting information between the color of a word and the name of the color written. It delves into the brain's processing...

In this video, we explore the fascinating world of color photography and the discovery made by inventor Edwin Land. We learn about the process of creating color images using monochrome images and color filters. The video also touches on...

Gestalt is a German word that means "form" or "shape". Learn how grouping images of a similar form or shape can alter how we perceive them.

This video explores the fascinating world of French optical illusions, also known as Tromp L'oleil. From Renaissance paintings to stage theater set designs and even cartoons, these illusions create the appearance of three-dimensional...

In this video, we explore different perspectives and optical illusions that challenge our visual perception. From the clever architectural techniques used in the Parthenon to the mind-bending effects of forced perspective and...

In this video, we explore the concept of holography and how holograms are created. The video explains the process of capturing holographic images using lasers, lenses, mirrors, and holographic film. It also showcases some amazing...

This video explores the power and influence of color on our emotions and perceptions. It discusses how different colors can evoke specific feelings and reactions, as well as their cultural and symbolic meanings.

We learned about sensation and perception in the biopsychology series. But there is a lot more to talk about in the context of psychology, in terms of imperfect perception. Do we always see things the way they really are? Can our minds...

Geometric illusions cause us to perceive different geometric properties than what is actually presented to us. Let's explore why this happens and see some examples of geometric illusions.<b<br/>r/>

Illusions part 5/11

In this video, the concept of depth perception is explained, highlighting the different cues that our brains use to perceive the distance and three-dimensional nature of objects. The video discusses both binocular cues, which require...

This video explores the concept of iridescence, where seemingly colorless or differently colored surfaces change their color when viewed from different angles. It explains how iridescence occurs through mechanisms like thin film and...

The mirage is an optical illusion famous for teasing thirsty desert travelers with illusions of water. Learn how light and heat interact to distort vision and create a mirage.<b<br/>r/>

Illusions part 8/11

We make a lot of assumptions about the things we see without even thinking about it. We fill in visual gaps based on information from past experiences. This is called unconscious inference. Learn how and why we do this.

This video explores the concept of camouflage in animals and how it helps them survive in nature. It explains the different ways animals blend into their surroundings, such as matching their background or having special designs on their...

In this video, we explore the fascinating effects of color mixing and contrast on our perception. From the creation of mesmerizing patterns to the disappearance and reappearance of objects, we discover how our brain interprets visual...