Latest news with #visualperception
The Sun
3 days ago
- Entertainment
- The Sun
Everyone can see the triangles in this challenging brainteaser – but only one in five can guess it right, can YOU?
THERE are different ways to put your brain to the test, from optical illusions that warp the way you see the world to tricky challenges that'll leave you scratching your head. This puzzle will test your observation skills - and only one in five get it right. Twist Museum – London's immersive experience dedicated to visual perception and cognitive illusions – has unveiled a brand-new brain teaser that's leaving people across the UK stumped. The latest optical puzzle invites the public to solve a deceptively simple question: How many triangles are in this image? But don't be fooled – this visual illusion is trickier than it looks. Released as part of Twist Museum's ongoing mission to challenge the way we see and think, the puzzle isn't just a game, it's a window into how our brains interpret complex visual information. Perfect for puzzle-lovers, illusion enthusiasts, and curious minds alike, their latest teaser offers a quick mental workout that's as entertaining as it is enlightening. So - are you up for the challenge? See if you can uncover every hidden triangle - but will you be among the few who get it right? Certain brainteasers and optical illusions, particularly those that involve patterns or sequences, can help strengthen both short-term and long-term memory. By working through puzzles on a regular basis, you will actively engage the brain's memory systems and directly improve your future attempts at visual challenges. Many brain teasers, like this one, require challengers thinking outside the box. 99 percent of people can't find the hidden objects in under 20 seconds - are you up to the challenge This enhances creative problem-solving skills by encouraging the brain to come up with innovative solutions. It also translates to real-life situations where you might need to approach challenges in new and inventive ways. Did you manage to find the bee in the brainteaser? Check the image below to see the answer and put your friends and family to the test to see who is the true champion. How can optical illusions and brainteasers help me? Engaging in activities like solving optical illusions and brainteasers can have many cognitive benefits as it can stimulate various brain regions. Some benefits include: Cognitive stimulation: Engaging in these activities challenges the brain, promoting mental agility and flexibility. Problem-solving skills: Regular practice enhances analytical thinking and problem-solving abilities. Memory improvement: These challenges often require memory recall and can contribute to better memory function. Creativity: They encourage thinking outside the box, fostering creativity and innovative thought processes. Focus and attention: Working on optical illusions and brainteasers requires concentration, contributing to improved focus. Stress relief: The enjoyable nature of these puzzles can act as a form of relaxation and stress relief. The answers: 2
Yahoo
21-05-2025
- Science
- Yahoo
The Speed of Your Eyes Could Hide Objects in Plain Sight
A gently lobbed baseball is easy to see. The same ball, however, can seem to vanish from the hand of a skilled pitcher, whizzing invisibly into the catcher's mitt. Given enough acceleration, moving objects become too fast to see. Yet this visual speed limit isn't universal – some people are apparently better at seeing in high-speed. According to a new study, the secret may lie in subtle eye movements known as saccades. These rapid motions of the eyes shift our focus between various points of interest, and are regarded as the most frequent movement the human body makes. By some calculations they occur two to three times every second, adding up to around 10,000 times every waking hour. Saccades take place naturally constantly without our thought or even awareness, but they don't occur at the same speed in everybody. The quickness of each person's saccades may determine their visual speed limit, the authors report, enabling those with faster saccades to perceive faster motion. The findings seem to demonstrate how our perception depends not just on the sensory limits of our eyes, but also on how our eyes behave as they observe. From bow hunters to baseball players, those with exceptional skills in fast visual tasks might be unwittingly capitalizing on speedy saccades. "What parts of the physical world we can sense depends fundamentally on how good our sensors are," says lead author Martin Rolfs, a vision scientist at Humboldt University of Berlin. Human eyes aren't sensitive to infrared light, for example, so we can't see it. This is an in-built limitation, illustrating how the mechanics of our sensory organs dictate our perception. "In this paper, however, we show that the limits of seeing are not just defined by these biophysical constraints, but also by the actions and movements that impose changes on the sensory system," Rolfs says. As we scan a scene or read text, our eyes naturally dart around to different focal points, briefly pausing on each before flitting to the next. While this helps our vision cover more territory, it risks disrupting the entire retinal image, effectively blinding our perception for fractions of a second at a time. Fortunately our brain's visual system edits out this disrupted motion in real-time, providing us with a seamless visual input by selectively excluding the careening effect of saccades. "Even though visual processing remains operational during saccades, this saccade-induced retinal motion is subjectively invisible during natural vision – a phenomenon referred to as saccadic omission," the researchers write. Saccades occur with incredible speed, outpacing most ordinary moving stimuli. Yet when we do encounter unusually fast objects, those similar enough to our own saccade motions may be edited from our perception. In the new study, Rolfs and his colleagues used high-speed video projections to display fast-moving objects that either matched or deviated from the motion of saccades. For each stimulus, observers performed perceptual tasks that were only possible if they'd seen the trajectory of motion. Stimuli following the specific movement patterns of saccades became invisible to observers, the study found. "So we are basically suggesting that the kinematics of our actions (here, saccades) fundamentally constrain a sensory system's access to the physical world around us," Rolfs says. Considering how active our eyes are, this highlights the importance of factoring that movement into our understanding of the broader visual system. "In simple terms, the properties of a sensory system such as the human visual system are best understood in the context of the kinematics of actions that drive its input," Rolfs says. "Our visual system and motor system are finely tuned to each other, but this has long been ignored." The study was published in Nature Communications. Tales of Viking Pregnancy Reveal The Fierce Side of Norse Mothers Song And Dance May Not Be Universal Human Behaviors, Study Shows TikTok Trend Has Men Shaving Their Eyelashes – Here's Why You Shouldn't
Gizmodo
12-05-2025
- Science
- Gizmodo
How Fast Is Too Fast to See? Study Reveals Your Visual Speed Limit
When a camera whips around from one point to another, most people expect the fast movement to result in a blurry smear. What they don't realize, however, is that our own eyes engage in a similar kind of rapid movement—called saccades—over 100,000 times a day. Unlike video cameras, our brain avoids the nauseating blur—but when things move in a particular way, they become invisible. As detailed in a study published May 8 in Nature Communications, researchers have revealed that the speed of an individual's saccades corresponds to the limit at which a moving object becomes too fast for them to see. That means people with faster eye movements can perceive faster-moving objects, with potential implications for activities requiring fast eye movements such as sports, video games, and even photography. The researchers claim to be the first to provide evidence for the theory that a person's movement impacts their perception. 'What parts of the physical world we can sense depends fundamentally on how good our sensors are,' Martin Rolfs, lead author of the study and an active vision scientist at Humboldt University of Berlin's Department of Psychology, said in a statement by the research group Science of Intelligence. 'In this paper, however, we show that the limits of seeing are not just defined by these biophysical constraints but also by the actions and movements that impose changes on the sensory system.' Rolfs and his colleagues demonstrated that when a study participant saw visual stimuli moving with the same speed and pattern as their own saccade shifts, the stimuli became invisible. This suggests the brain filters out motion that mimics our own eye movements, which might be why our saccades don't cause visual blurs in the way that cameras do. More broadly, this suggests that physical movement—such as eye movement—limits our sensory system's perception of the world. In other words, our ability to see things in motion is not just dictated by our sensory abilities, such as the strength, or sensitivity, of the photoreceptors in our eyes. 'In simple terms, the properties of a sensory system such as the human visual system are best understood in the context of the kinematics of actions that drive its input (in this case, rapid eye movements),' said Rolfs. Kinematics is the study of object motion without considering the cause of said motion. 'Our visual system and motor system are finely tuned to each other, but this has long been ignored,' he continued. 'One of the issues is that the people who study motor control are not the same ones who study perception. They attend different conferences, they publish in different journals—but they should be talking!' It's only a matter of time until helicopter parents start timing their kids' saccades to decide whether they belong in little league or theater.
