Articles tagged with Visual Perception
Researchers created a database of 21 textures associated with different emotions, revealing soft surfaces tend to evoke pleasant feelings while rough ones elicit unpleasant sensations. The study also found people with high alexithymia levels experience more intense negative emotions when interacting with certain textures.
Researchers used optical illusions to study human vision and found rhythmic brain activity patterns that facilitate visual feature integration. The findings suggest that periodic waves of brain activity are necessary for both perception and attention, contradicting the classical view of unified perception relying on a single brain region.
Researchers at the University of Texas at Austin developed an AI agent that can gather visual information and reconstruct a full 360-degree image of its surroundings. The agent uses deep learning to choose the most informative shots, similar to how humans would take pictures in different directions based on prior experience.
A new University study highlights the high incidence and prevalence of visual problems in acute stroke survivors, with 48% of all stroke admissions and 60% of survivors experiencing new onset visual conditions. The study found that three quarters of patients had visual problems, including impaired central vision, eye movement abnormali...
A new study by the University of Plymouth found that people spontaneously form mental images of how the world looks to others, allowing them to virtually see through another person's eyes and make judgments. This ability helps us empathize with others, predict their behavior, and interact with them effectively in everyday activities.
Archae fish, trained in a computer experiment, exhibit same visual processing skills as humans when identifying target features such as color, size, orientation and motion. This shared approach is believed to be essential for survival and could provide insights into other species' brains.
Researchers found that body-camera footage led to lower intentionality ratings compared to dashboard footage in both real and staged incidents. The study suggests that body-camera footage could impact judicial decisions.
A recent study by UNIGE and HUG researchers found that people's confidence in interpreting others' emotions is often skewed by their personal experiences. The study used functional MRI to examine brain activity during emotional recognition, revealing that areas of the brain linked to autobiographical memory play a key role in determini...
A study involving over 800 participants found that unconscious assumptions about extramission theory led to different force estimates when a person gazed at an object. The results suggest the brain constructs a social model with an invisible energy beam from others' eyes, influencing perception.
Caltech researchers develop two illusions to demonstrate postdiction, a phenomenon where later stimuli retroactively affect earlier perceptions. The Illusory Rabbit and Invisible Rabbit illusions show how sound can influence vision, highlighting dynamic neural processing.
Researchers at Baylor College of Medicine found that smaller sample sizes can greatly exaggerate the magnitude of group differences in multisensory integration studies. Studies with sample sizes of 20 or less are more likely to produce inflated results, which can lead to incorrect conclusions and potential failures in therapy development.
Researchers found that men and women show surprising differences in perceiving motion, with men picking up on visual motion faster than women. The study suggests that the difference may be due to disrupted processes in the brain that down-regulate neural activity in males.
Researchers found that brain activity patterns shift towards stored representations of clear images, suggesting that past experiences play a significant role in perception. The study used fMRI to analyze how the brain processes blurred images and found that higher-order circuits were more affected by clear image-induced shifts.
A study published in JNeurosci reveals the hippocampus plays a key role in predicting visual information based on past experiences. The findings suggest that memories can influence how we perceive the world, with the brain 'filling in' missing information to create a coherent picture.
Developmental prosopagnosia often occurs due to a neurobiological problem in the brain affecting visual recognition broadly. The study found that DPs had reduced responses to faces but normal responses to objects, scenes, and bodies across all face-selective areas.
Researchers at Toyohashi University of Technology have discovered that face-likeness is judged by early visual processing, occurring within 100ms of viewing an object. This finding suggests that face-likeness recognition is a fundamental cognitive process, separate from traditional notions of pareidolia.
A neuroimaging study found that the brain's visual system fills in missing information to maintain perception when visibility is low. The study, published in eNeuro, provides a more comprehensive account of how individuals perceive their world through vision.
Researchers at Champalimaud Centre for the Unknown uncover exquisitely organized map of visual space in feedback connections, providing insights into visual perception. The study reveals that these connections encode information from further locations in visual space, giving lower structures contextual 'whole picture' information.
Researchers found that symmetrical stimuli are less likely to trigger an inversion effect when targets are sexualized, suggesting a cognitive mechanism behind human sexual objectification. Visual exploration strategies may play a role in this phenomenon, with lower fixations on the face region of sexualized targets.
Research at Goethe University Frankfurt reveals that the human brain prepares for dawn and dusk by reducing resting activity in the visual cortex, allowing it to process weak visual stimuli more effectively during these times. This mechanism may have provided an evolutionary advantage in the pre-industrial era.
A recent study revealed neural clustering in V4 that preserves visual acuity, enabling the separation of local and global features. This discovery challenges existing models and offers new insights into how the brain processes visual information.
Researchers found that people closely watch lip movement and shape when perceiving speech, with subtle distinctions between vowel sounds suffering without these cues. The study's findings have implications for designing more intelligible avatars and improving communication devices for the hearing impaired.
A study has linked individual variation in biological motion perception to genetic factors, revealing a common genetic basis for heritable aspects of BM perception and autistic traits. Genetic influences account for up to 50% of individual variation in local kinematics processing, while environmental factors shape global configuration ...
A new study led by Colorado State University researcher Jessica Witt investigates the impact of actions on vision. The findings suggest that vision is influenced by actions, but this effect may not be entirely dependent on the participant's level of understanding the experiment's purpose.
Cognitive psychologists found that people can accurately estimate both mean size and number of objects in separate tasks, suggesting two independent processes. This discovery can inform new approaches to statistical data visualization and education.
Research explores military-related brain disorders and potential treatments, including improved visual responses and neural stem cell therapy. Disruptions in brain networks may underlie symptoms of Gulf War Illness, such as changes in vision, language function, pain perception, and mood regulation.
A UCLA-led study reveals that sleep deprivation affects the ability of brain cells to communicate with each other, leading to mental lapses in memory and visual perception. The researchers discovered that lack of sleep also slows down brain cell activity, causing sluggish cellular activity and performance issues.
A new study by Ohio State University finds that moderately farsighted preschoolers have poorer scores on attention-related tests. The research suggests that uncorrected vision problems in young children can lead to deficits in learning and literacy.
Researchers at McGill University have shown that practice can alter the way the brain uses sensory information, including visual perception. By temporarily deactivating a critical brain region, subjects who practiced with moving lines were able to perceive motion despite the region's inactivation.
Neurons in the brain receive information from large parts of the visual field to form a coherent perceptual image. The study found that neurons are most likely connected if they react to edges on a common axis, mirroring the structure of the visual world.
Researchers found that exposure to a common visual illusion enhances ability to read fine print by improving visual acuity. Participants who saw clockwise spirals showed improved performance in reading letters at smaller font sizes.
Scientists have discovered that hypnotic states significantly impair deep processing operations while allowing simple perception to occur. This suggests that hypnosis affects specific regions of the brain when receiving visual stimuli.
Researchers analyzed how neurons in V2 respond to natural scenes, discovering three principles: combining edges, cross-orientation suppression, and repeating patterns. This work provides insight into the brain's ability to recognize faces, cars, and other objects.
A recent study found that cultural differences in visual processing affect the ability to discern simple differences between geometric figures. North Americans took longer to identify a straight line among tilted ones compared to Japanese volunteers.
Researchers at National Research University Higher School of Economics found that repetition of nouns and verbs can enhance the syntactic priming effect. The study shows that repetition of any content word in a sentence boosts syntactic priming, with more repeated words resulting in stronger effects.
Researchers have developed an algorithm to automatically improve the design of scatterplots by exploiting models and measures of human perception. The optimized designs effectively communicate relationships between two data variables, reducing unintended miscommunication.
Researchers created an algorithm to understand how the brain combines auditory and visual speech cues, shedding light on the McGurk effect. The findings will help improve speech perception in patients with deficits and enhance hearing in devices.
A multidisciplinary team from UChicago is developing wireless brain implants that can convert camera input into electrical stimulations to produce useful visual perception in the brain. The technology could restore partial vision to people who have lost their sight, significantly improving their quality of life.
The brain can distinguish between expected and unexpected visual motion by selectively silencing neurons sensitive to yaw during intentional turns. This allows flies to stabilize their flight path and shift their gaze without interference. The study provides insights into how the brain processes visual information to control behavior
A new study found that children with poor vision show vast improvement in their peripheral vision after eight hours of training via kid-friendly video games. The game trains players to pay attention to the entire visual field, not just where their vision is most impaired, resulting in up to 50% improvement in visual perception tasks.
Researchers at UC Berkeley discovered that humans use visual cues to quickly determine if something is lifelike or not. In real life, this allows us to navigate social situations and avoid confusion, while in the lab, participants accurately rated groups of images as more or less lifelike even when shown for just 250 milliseconds.
Researchers discovered a neural circuit in fruit flies that creates an internal representation of direction and velocity, allowing them to navigate accurately. This finding has implications for our understanding of self-movement perception in humans and other animals.
A study by researchers at the University of Wisconsin-Madison found that visual interference can disrupt recall of what things look like. The study, published in the Journal of Memory and Language, challenged widely held theories about visual knowledge and how it is processed in the brain.
A new study using Bayesian inference models shows that humans anticipate future events based on past experiences, but the accuracy of their responses differs from reality when stimuli are accelerated or delayed. This suggests that our brain continuously updates probability of encountering future stimuli.
Researchers have discovered specific cell types and mechanisms responsible for orientation selectivity in the retina of zebrafish, shedding light on how we perceive and recognize visual stimuli. The study reveals that mutating a key protein called Teneurin-3 leads to a loss of orientation selectivity in neurons.
Researchers found that even when conflicting information is invisible, the human brain initiates mechanisms to resolve it. This occurs in the early visual cortex with minimal involvement of the fronto-parietal cortex.
Research shows that older adults experience age-related deficits in inhibition, leading to slower processing of visual information. This decline affects their ability to distinguish between familiar and novel objects, making it harder for them to perceive shapes and objects clearly.
Scientists propose a computational model explaining multisensory integration in humans, utilizing a Multisensory Correlation Detector. The brain detects similarity across visual and auditory signals to integrate stimuli, opening new clinical perspectives for neurological syndromes like Autism Spectrum Disorder and Dyslexia.
Research by Dr. Sven Joubert reveals that Alzheimer's disease affects holistic face perception, leading to difficulties in recognizing faces of family members or celebrities. This impairment is observed even in the early stages of the disease, highlighting potential strategies for patients to recognize their loved ones for longer.
A University at Buffalo-led study finds that gamers become less responsive to guilt-inducing stimuli as they repeatedly play violent video games, leading to a loss of moral response over time.
Researchers at the University of Pennsylvania have discovered that the occipital place area (OPA) plays a key role in perceiving boundaries during navigation. By using transcranial magnetic stimulation to disrupt normal processing, the team found that participants made more errors navigating around boundaries but not landmarks.
Researchers at KU Leuven found that the human brain completes missing parts of objects using visual cues, leading to the 'shrunken finger illusion'. This counterintuitive phenomenon suggests our brains rely on visual system, not imagination, to fill in gaps. The study's findings provide new insights into perception and cognition.
A study published in Attention, Perception, & Psychophysics reveals that people can intentionally exclude objects from their mental model of their environment. Test observers were faster at finding a target when the objects matched the color of the rectangle, but not when they did not, indicating top-down control over attention.
Researchers at Johns Hopkins University found that expertise influences how people process visual information, with novices faster to identify letter pairs but less accurate. The study used the Arabic alphabet and showed participants 2,000 pairs of letters, revealing biases in expert perception that went beyond visual features.
Researchers at Johns Hopkins University found that giving people time to learn what's possible to ignore improves visual search performance. Participants who were told to ignore distracting colors on a computer screen found the target letters faster and more efficiently over time.
Cognitive neuroscientist Rosie Cowell is using a five-year grant to develop and test a theory of memory interaction with fine-grained visual perception. She will use computational modeling and memory experiments to investigate how the medial temporal lobe affects both memory and visual perception.
Researchers at Dartmouth College used fMRI to explore neural mechanisms behind filling in missing details of sensory information. The study found that intermediate object features are reconstructed in neural responses at early stages of cortical processing.
A study published in Biology Letters found that the eye views of ponies and other mammals are surprisingly similar to those of humans. Researchers used touchscreens to test visual perception in three ponies, comparing their results with studies on dolphins and chimps.
Researchers found that people with CFS are more vulnerable to pattern-related visual stress, a condition that causes discomfort and exhaustion when viewing repetitive striped patterns. This discovery may help in diagnosing the illness, which is difficult due to its similar symptoms to other conditions.
Research found that prenatal exposure to marijuana improves a child's ability to track moving objects, while alcohol has a negative effect on visual processing. The study suggests that health professionals can counteract the negative effects of drug use in pregnancy.