Articles tagged with Eye Movement
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A new measuring system has been developed to objectively assess the fatigue level of physicians through their eye movement, specifically the speed of saccadic movements. This study found that the speed of saccadic movements effectively diminished after long hours, while subjective fatigue perception increased.
Researchers at Tel Aviv University developed a diagnostic tool using involuntary eye movements to accurately diagnose Attention Deficit Hyperactivity Disorder (ADHD). The test showed a direct correlation between ADHD and the inability to suppress eye movement in anticipation of visual stimuli.
Researchers discovered that the prefrontal cortex is responsible for visual stability, filtering out unnecessary information during eye movements. This finding has implications for understanding mental health issues like dyslexia and attention deficit disorders.
A study published in Psychological Science suggests that speed-reading apps, which eliminate eye movements, can impair reading comprehension. The researchers found that readers who are unable to make 'regressions' during reading have impaired comprehension levels.
Neurologists investigate the significance of the vestibular system in directing gaze, finding that patients with vestibular or cerebellar dysfunction have difficulty controlling eye movements. The study suggests that rehabilitation training based on active head movements can enhance gaze shift control and learning to find endpoints.
Researchers found that people with inner-ear disturbances exhibit distinct eye movements when exposed to MRI magnets, potentially allowing for diagnosis and treatment. Zebrafish also showed dramatic reactions to strong magnetic fields, offering a model for studying genetic factors behind balance disorders.
Researchers at UCSB and University of Bristol found that the brain can perform foveal analysis and peripheral selection during visual sampling independently and rapidly, without affecting accuracy. This specialized ability may be due to humans' need to maintain vigilance over their periphery while performing focused visual analysis.
Researchers found that baseball players move their heads to track pitches, making only slight adjustments with their eyes until late in the pitch trajectory. This challenges the conventional wisdom that hitters focus primarily on the ball with their eyes.
In a study, researchers found that dogs can perceive faces in images and differentiate between familiar and strange faces. Dogs preferred viewing conspecific faces over human faces, gazing more at the eye area of familiar faces.
Researchers found that people with normal vision can adjust their eye movements within hours to cope with temporary vision loss. This discovery suggests a way to help individuals with age-related macular degeneration better manage visual impairment.
Researchers at Max Planck Institute found that rats move their eyes in opposite directions, allowing them to maintain a constant binocular field and detect potential threats. This adaptation is thought to increase their chances of survival against birds and other predators.
Brain researchers at Barrow Neurological Institute have discovered that healthy observers and neurological patients scan visual scenes with the same general strategy, regardless of scene size or fixation status. This finding challenges previous concepts of exploration and fixation as fundamentally different behaviors.
Researchers at the University of Chicago discovered that a specific region of the brain can encode both spatial and cognitive signals simultaneously. This finding suggests that multiple functions can be mapped onto a particular brain area, including individual brain cells.
A new study led by Johns Hopkins Medicine researchers has developed a simple bedside test that can determine whether severe dizziness is caused by a stroke or something benign. The portable device uses eye movement tests to diagnose strokes with 100% accuracy, promising to prevent misdiagnosis and save lives.
Researchers at McGill University found that people with schizophrenia exhibit impaired reading fluency due to context-dependent eye movements and processing of words. The study provides new insights into the impact of schizophrenia on cognitive functions and could lead to earlier interventions.
A study by University of Bristol researchers found that while men made fewer eye movements than women, those they did make were longer and to more varied locations. Women's eyes were drawn to the rest of the bodies, particularly the female figure, in images of heterosexual couples.
The study investigates how orangutans use their vision to search for food and navigate their surroundings, shedding light on their cognitive abilities and behavior. The research also aims to develop enrichment programs for captive animals, helping to reduce boredom and promote natural behaviors.
Researchers discovered that older adults rely more on holistic cues to identify words, making it easier for them to comprehend text. This finding contradicts the common belief that older adults struggle with reading due to declining visual sensitivity.
Researchers have developed a low-cost method for detecting neurological disorders like ADHD and Parkinson's by analyzing eye movement data while watching TV. The study found that patients with these conditions exhibited distinct patterns of eye movement, allowing for accurate diagnosis with high accuracy rates.
A research team has identified how a genetic mutation affects nerve growth in the eye, leading to Duane Syndrome. This discovery could lead to therapies that reverse the condition and improve our understanding of movement disorders.
Researchers develop a technology that tricks the neuromuscular machinery into producing smooth eye movements, allowing individuals with nearly complete limb paralysis to write in cursive. This breakthrough has significant implications for people with ALS and other conditions affecting eye movement control.
A widely-held belief that certain eye movements indicate lying has been debunked in a new study published in PLOS ONE. The researchers found no correlation between eye movement direction and truthfulness, challenging existing approaches to detecting deceit.
Researchers at Barrow Neurological Institute found that curved motion triggers smooth pursuit eye movements, while straight motion leads to saccadic eye movements. This discovery could have wide-reaching implications in various fields.
Researchers from Tuebingen identified two brain areas, V3A and V6, that compare eye movements with visual signals on the retina to correctly perceive objects in motion. These areas enable us to distinguish between self-induced and external movements, allowing us to navigate our environment effectively.
A new surgical procedure called superior rectus transposition with adjustable medial rectus recession has shown promising results in aligning the eyes of patients with complex strabismus. The procedure, adopted at Boston Children's Hospital, allows for precise eye movement fine-tuning in the recovery room or up to a week after surgery,...
A new study by San Francisco State University researcher Sybil Yang found that diners do not linger noticeably longer over any particular location on the menu, contradicting decades of conventional wisdom. Instead, they read menus sequentially like a book, moving from left to right and down the pages.
Researchers found conservatives react more strongly to unpleasant images and focus on negative stimuli, while liberals respond more to positive stimuli. This study provides insights into the growing notion that political leanings are partially products of biology.
Researchers found that tracking eye movements can reveal discrepancies in eyewitness reports. Participants spent more time looking at remembered faces and had disproportionate viewing of these faces before making a response. The study's findings could lead to improved eyewitness testimony accuracy and new insights into memory and decis...
Research by the University of Exeter shows that trainee surgeons learn technical surgical skills more quickly and deal better with stress if taught to mimic expert eye movements. The study highlights the potential for 'gaze training' to speed up initial skill learning, getting trainees ready for the operating room earlier.
A team of researchers from Aalto University and international partners found a genuine hypnotic state through studying the 'trance stare' associated with hypnosis. The study showed a dramatic reduction in eye movements beyond volitional control, confirming an altered mental state.
A survey of 168 locked-in syndrome patients found that most (72%) are happy, while 28% experience unhappiness due to various factors. Improving rehabilitation and anxiety treatment can help patients regain a happy life, suggesting optimal life-sustaining care can have major long-term benefits.
A team of researchers demonstrated that the brain predicts consequences of rapid eye movements, improving accuracy in identifying objects. This process, which precedes eye movements, speeds up subsequent actions towards targets.
Researchers found that liberals consistently move their attention in response to gaze cues, while conservatives do not. This suggests that liberals tend to be more responsive to others and are influenced by social interaction, whereas conservatives value personal autonomy and are less likely to be swayed by external cues.
Research shows that damage to nerve supply controlling eye movement is a common problem after stroke, impacting reading abilities and rehabilitation. Stricter assessment methods are necessary to detect vision problems as stroke after-effects rather than age-related symptoms.
A new study published in Psychological Science reveals that eyes move differently when minds are wandering versus paying attention. When readers zone out, their eyes fixate on individual words for longer periods, suggesting a strong link between eye movements and language processing in the brain.
Drivers tend to look at a specific point on the lane marking when negotiating curves, with more time spent looking at the tangent point in shorter sight distances. A new study may lead to the development of an in-car warning system to prevent drivers from unintentionally departing from their lane.
A UBC researcher has discovered what makes Rembrandt's portraits so captivating by recreating four of the artist's most famous works using computer-rendering programs. The study found that viewers fixated on specific areas of the face, such as the eyes, and preferred portraits with 'eye guiding narrative' techniques.
Researchers at the University of Melbourne used eye-tracking technology to predict the next chosen number based on participants' vertical and horizontal eye position. The study found that a leftward and downward change in eye position indicated smaller numbers, while a rightward and upward movement forecast larger numbers.
A new study by the University of Exeter shows that anxious penalty takers are more likely to focus on the goalkeeper, leading to shots that centralize and become easier to save. The research suggests that coaches can address this issue through training, emphasizing the importance of practicing aiming strategies under pressure.
A small study of 101 patients found that a one-minute eye movement exam performed at the bedside worked better than an MRI to distinguish new strokes from other less serious disorders. The quick and low-cost test caught more strokes than the current gold standard, suggesting a way to improve care and avoid high costs.
Scientists discovered a way to track stored memories using eye movements, even when individuals are unable or unwilling to report what they remember. The study highlights the role of the hippocampus in memory and awareness, suggesting that conscious memory may depend on interactions between the hippocampus and prefrontal cortex.
Researchers found that brain predicts what eyes in motion will see, even before they move, allowing for a stable visual environment despite retinal image shifts. This remapping process enables continuous representation of locations across eye movement, facilitating the transition between current and expected images.
Researchers at Queen's University have created eye movement tests to aid in understanding childhood brain development, healthy aging, and the diagnosis of Attention Deficit Hyperactivity Disorder (ADHD) and Parkinson's disease. The study found that children scored low on these tests, while those with ADHD showed decreased normal brain ...
Researchers at the Peninsula Medical School have received a £9,600 grant to continue studying the genetic causes of eye movement disorders. The team aims to identify genes that contribute to loss of eye movement in conditions like Duane syndrome.
Researchers at Rutgers University discovered the brain processes visual input during eye movements but blocks it from awareness, contradicting current theory of saccadic suppression. This new understanding may improve treatment for conditions like schizophrenia and dyslexia associated with visual processing deficits.
A study by Michael D. Dodd and colleagues found that inhibition of return occurs during visual search tasks, but not during other visual behaviors. Volunteers were tracked while viewing scenes to identify eye movements, revealing a 'facilitation of return' effect where previously fixated locations are shifted faster than new ones.
A Queen's University study has expanded eye-movement tests to identify children with Fetal Alcohol Spectrum Disorder (FASD) in community settings, with over 200 children tested across Ontario and Alberta. The breakthrough will add eye movement testing to standard clinical assessment protocols.
Scientists have long debated the function of microsaccades, but researchers at the Salk Institute found they are actively controlled by the superior colliculus. The study reveals that individual neurons in this area are highly specific about which microsaccade directions and amplitudes they command.
Scientists report that a simple decision-making task does not involve the frontal lobes, instead relying on the parietal lobe to process sensory information and control responses. This finding challenges the traditional view of human decision-making as willful acts, suggesting that many decisions may be driven by automatic processes.
A team of scientists has made significant progress in understanding how the brain controls eye movement, particularly when tracking fast-moving objects. The study found that gain control, a phenomenon where the brain adapts eye movement to object speed, is determined by specific neural networks in the frontal eye fields.
Researchers at UT Southwestern Medical Center have developed a new tool to study the mysterious link between body temperature and multiple sclerosis symptoms. By tracking eye movements, they found that as body temperature rises, eye movement disorders worsen in people with MS.
Researchers developed a model of brain function that shows how eye movement signals boost neural representation of objects at future gaze positions, compromising spatial accuracy. This results in the perception of details before looking at an object, making the world appear stable while eyes move.
A study by University of Illinois researchers found that eye movement can influence problem-solving success. By manipulating eye movements, participants were able to outperform control groups in solving a problem. The findings suggest that eye movements can not only reflect but also affect cognitive processes.
Dr. Susana Martinez-Conde and her team will record neural activity in the brain's visual areas to understand why images appear stable during fixation. They aim to determine at what level of the brain visual perception becomes stable, shedding light on this critical aspect of our visual experience.
Bart Krekelberg seeks to understand how the brain ignores eye movement during visual processing, potentially leading to new treatments for dyslexia and schizophrenia. He will use a combination of electrophysiology and functional resonance imaging to identify key areas of the brain involved in visual perception.
A study presented at SLEEP 2007 found that even a single night of sleep deprivation affects drivers' ability to coordinate eye movements with steering. The results suggest that sleep deprivation can lead to acute and chronic reductions in eye-steering coordination, potentially increasing the risk of accidents.
A new framework has been established to determine schizophrenia risk based on eye movement and attention focus. Researchers found that individuals with dilute forms of schizophrenia-like symptoms are at higher risk, even if they have never had the illness.
A UCL study found that relying on instincts rather than higher-level cognitive processes can lead to more accurate decisions. Participants who were given no time to think performed better, with accuracy rates of 95% compared to 70% when given over a second to scrutinize the image.
Researchers at the University of Calgary discovered that elite goalies should focus their gaze directly on the puck to make a save. This 'Quiet Eye' phenomenon allows goalies to successfully block shots over 75% of the time.
Researchers at the Salk Institute found that moving eyes helps resolve ambiguous visual inputs, improving object recognition. The brain uses internal image stabilization and eye movement feedback to maintain stable perception despite shaky video streams.