Articles tagged with Visual Perception
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Researchers from Drexel University's College of Nursing and Health Professions found that traumatic life events do impact the perception of trauma-related imagery. Viewers' personal history of adversity and trauma was associated with stronger reactions to images depicting injury/trauma.
A novel approach to training AI systems uses information about spatial position to identify objects and navigate surroundings, inspired by children's visual development. The method improves contrastive learning models' effectiveness by incorporating simulated spatial context information, outperforming base models in various tasks.
Researchers have developed a system combining bio-inspired cameras with AI to quickly detect obstacles around cars, using less computational power. The hybrid system detects objects up to one hundred times faster than current systems while reducing data transmission and processing needs.
A team of neuroscientists developed a new AI algorithm that replicates the brain's visual processing, forming spatial maps and predicting sensory responses. The topographic deep artificial neural network (TDANN) could lead to more efficient artificial systems inspired by the brain's elegance.
A new AI model developed by Cold Spring Harbor Laboratory's Benjamin Cowley and team uses a 'population code' to predict fruit fly behavior, revealing that multiple neurons combine to sculpt actions. The breakthrough enables the AI to accurately predict how real flies will behave in response to visual stimuli.
Researchers found that neural activity in the visual thalamus is coupled with pupil dynamics during different phases of arousal. This modulation affects how sensory impressions are transmitted to higher areas of the brain like the visual cortex, influencing visual perception.
This study found that perceiving high glossiness in images induces greater pupillary constriction than perceived low glossiness, even when physical luminance is adjusted. The results suggest that the visual system responds to specular highlights in glossy images, leading to pupil constriction.
Researchers created an ultra-small vision implant with single-neuron sized electrodes, allowing for thousands of 'pixels' to be stimulated simultaneously. The implant's unique combination of flexible materials ensures long-term functionality and stability.
Researchers have discovered that activating the locus coeruleus, a brain structure producing norepinephrine, improves visual sensitivity in non-human primates. The study used optogenetics to selectively boost LC activity, resulting in drastic enhancements in performance on a visual attention task.
A new study using electrophysiology and optogenetics has shown that neurons in the primary visual cortex respond to brightness illusions, settling a long-standing debate in neuroscience. The findings suggest that higher-level neurons play a crucial role in modulating activity in lower-level neurons.
A computer vision researcher has developed privacy software for surveillance videos that obscures identifiable information such as faces and clothing in real-time. The software, funded by the National Science Foundation's Accelerating Research Translation program, aims to balance surveillance needs with privacy concerns.
Researchers at Aston University discovered that experienced Ordnance Survey mapmakers and novices interpret aerial images differently. The experts rely on stereoscopic cues, while novices focus on lighting cues, leading to improved performance through repeated exposure and perceptual learning.
Researchers from the University of Rochester found that blinking allows brains to process visual information more effectively, providing a new understanding of how humans see. By modulating visual input, blinks reformulate visual signals, enabling better perception of big patterns and overall visual scenes.
Researchers found considerable variation in human temporal resolution, with some people perceiving faster-changing visual cues than others. This discovery may impact high-speed situations such as ball sports and competitive gaming, suggesting individual differences in perception speed could be an advantage.
A new Dartmouth study reports on a unique case of prosopometamorphopsia (PMO), a rare condition that distorts facial features. The researchers used computer software to visualize the patient's real-time perception of face distortions, providing accurate and photorealistic visualizations for the first time.
Conventional projection mapping systems work only in dark environments due to surrounding illumination. Researchers from Osaka University developed a method to control both image and illumination, allowing for realistic projections in bright environments. This technology enables interactive displays with multiple viewers under natural ...
Researchers found that our brain processes vision in a rhythmic manner, increasing sensitivity during steps and decreasing it. This discovery has implications for understanding human behavior, decision-making, and potential applications in sports science and diagnostics.
A study published in Nature tracked neural activity of freely moving macaques using wireless eye tracking and neural monitoring. The research found that the visual cortex plays an active role in social behavior by providing signals to the prefrontal cortex, enabling the decision to cooperate.
The study reveals that the superior colliculus is vital in the transition from seeing individual flashes to smooth motion, and may be a key component in creating the continuity illusion. Different methods of measuring the Flicker Fusion Frequency threshold suggest other parts of the brain also play a role in this process.
A study by Konstanz biologists reveals that the moths use visual feedback to move and correct the movement of their proboscis, similar to humans grasping objects. The animals' efficient way of working is also great models for applied research in robotics and understanding the visual control of appendages.
Researchers found that 94% of patients with posterior cortical atrophy had Alzheimer's pathology, while only 70% of those with memory loss did. Early identification of PCA may lead to better treatment options for Alzheimer's patients.
A new study has identified a neural coding mechanism that allows for the transfer of information between perceptual and memory regions of the brain. This discovery challenges traditional understanding of brain organization and suggests that memory areas encode visual information in a 'photographic negative' format.
The Digital Media Overuse Scale (dMOS) is a new tool that measures digital media addiction, providing clinically relevant scores across various domains. Researchers found that overuse is typically reported in one or a few domains only, with social media being a significant concern.
A recent study reveals that infants aged six months and older can perceive misbinding, a type of visual illusion where features are mistakenly integrated. In contrast, infants under six months do not exhibit this phenomenon, indicating they may perceive the external world more accurately than adults.
Researchers at Duke University have discovered that subtle ear sounds can be decoded to pinpoint where someone's eyes are looking. By analyzing these sounds, the team was able to estimate the movement of the eyes and predict what the waveform of the ear sound would look like.
Researchers used AI models to analyze rat brain cells and found they can process high-level visual information like primates. This discovery sheds light on the visual system of rodents and has implications for understanding neurodegenerative disorders.
A recent study published in the Proceedings of the National Academy of Sciences found that AI's deep convolutional neural networks can identify faces but struggle to capture other important information like emotional state and trustworthiness. Brain activity scans revealed a weak correlation between AI's codes and human brain represent...
A new project aims to help robots assess risks and make autonomous decisions. The research focuses on quantifying ambiguity in robot perception to improve safety and efficiency.
Researchers developed an innovative method to enhance vision, overcoming location specificity limitations.
A new study finds that simple packaging design is positively associated with price, but not always enhances consumers' willingness to pay. The research team discovers that store-brand products and health-oriented consumers benefit from simplicity, while indulgent consumers prefer complex packaging.
A new study finds that faces with acne, especially adult female acne, are perceived as less attractive, trustworthy, confident, successful, dominant, and happy. The study also highlights the emotional and psychological burden experienced by individuals with acne.
Researchers discovered that reddish tints on faces can make happiness seem friendlier, while having no effect on angry expressions. The study suggests that facial color quietly affects our perception of emotions, even when we're not aware of it.
Researchers found goalkeepers have narrower temporal binding windows, indicating more precise multisensory processing and quicker estimations of audiovisual cues. They also showed less interaction between visual and auditory information, suggesting a greater tendency to separate sensory signals.
A joint research team published a review on in-sensor visual computing, a three-in-one hardware solution that overcomes high latency, power consumption, and privacy risks. The SCAMP chip is a key device, enabling general-purpose, programmable, and massively parallel systems for robotics and computer vision.
A team of researchers studied Claudio, a person with an inverted head position, to investigate the reasons behind human face recognition. They found that Claudio's performance in detecting and matching faces was not significantly different from that of typical individuals when faces were upright or inverted.
A study by Paolo Bartolomeo and Jianghao Liu investigated the nature of aphantasia, finding that individuals with aphantasia have normal perception and memory capabilities but struggle with visual mental imagery. They propose that phenomenal consciousness may play a role in this phenomenon.
Researchers found that footballers wearing jerseys featuring small numbers were rated as more slender, while those wearing big numbers were perceived as larger. The study suggests that visual perception may be influenced by cognitive biases.
A Cochrane review of 17 randomised controlled trials found that blue-light filtering spectacles may not reduce visual fatigue associated with computer use and do not improve sleep quality. The evidence is also unclear on their effects on retinal health.
Researchers found that rodents exposed to light for the first time in adulthood showed significant plasticity in their brains, challenging previous beliefs about adult brain rigidity. After a month, their brains looked similar to those of healthy controls, with organized visual responses and smaller receptive fields.
A recent study revealed that attention plays a crucial role in shaping our conscious experience of the world. Researchers found that manipulating attention can modify an individual's ability to consciously perceive visual stimuli, highlighting the intricate relationship between attention and conscious perception. By using advanced neur...
A study published in PLOS Biology reveals that the inferolateral occipitotemporal cortex selectively encodes object shape in both sighted and early blind individuals. This finding suggests that the brain is organized as operators executing a function regardless of input senses.
Researchers developed an artificial visual device that can operate in self-powered mode, exhibiting human-eye-like adaptation behaviors. The device demonstrates broadband light-sensing image adaptation and synergetic visual adaptation, showcasing its potential for advancement in intelligent opto-sensors and machine vision systems.
A study led by Dartmouth College researchers found that participants' color memory improved when stimuli were meaningful and part of real-world objects. The results demonstrate that the capacity for visual working memory of colors is more continuous and flexible than previously thought, with better recall of colors in meaningful contexts.
Researchers propose a system that plays brief, targeted sounds to alert individuals near digital signage, while only making the sound audible to those actively viewing it. The system improved participants' attention to signage and reduced distractions.
A recent study by researchers at the University of Vienna found that dogs and humans have brain regions specialized in perceiving body postures, similar to those found in humans. The study used magnetic resonance imaging (MRI) to compare the brains of 40 human participants with 15 pet dogs.
A new study reveals that the brain makes trade-offs between accuracy and speed in sensory perception. Initial visual processing is faster but less accurate compared to other parts of the brain. The findings contradict the efficient coding hypothesis, suggesting that the brain can process sensory inputs quickly with small errors.
Researchers at KAUST developed smart digital image sensors that can recognize images with high accuracy, using a charge-trapping 'in-memory' sensor sensitive to visible light. The devices have an extremely long-lived retention time of up to 10 years and can perform optical sensing, storage, and computation.
A team from UNIGE created a book with tactile illustrations that associate sounds with objects, enabling visually impaired children to identify them more easily. The combination of gestures, shapes, and sounds helps bridge the gap between visual and tactile experiences.
Researchers at the University of Rochester Medical Center found that predicting movement is crucial for eye-and-hand coordination. The study used high-speed cameras and AI methods to analyze primate behavior and developed a detailed model of vision-guided reaching behavior.
A study found that expert mammogram radiologists exhibit visual hindsight bias, leading to improved performance on blurry images after prior clear images were viewed. This bias can impact the detection of lesions and has implications for negligence lawsuits and patient outcomes.
Researchers found that past images can distort our perception of current stimuli, with brain activity revealing a
A new study reveals that human vision can exploit defocus blur to infer perceptual scale but does so crudely, affecting our ability to accurately estimate object sizes. Researchers used blurred images of full-scale railway scenes and small-scale models to test participants' perceptions.
Researchers from Aston University and the University of York discovered new insights into how the human brain makes perceptual judgments of the external world. They found that humans can exploit 'defocus blur' to infer perceptual scale, but this process is crude and more heuristic than metrical analysis.
A new technique called image-free single-pixel object detection (SPOD) can detect the location, size, and category of multiple objects without acquiring images. SPOD uses a small optimized structured light pattern to quickly scan the scene and extract features, achieving an accuracy of over 80%.
Researchers discovered that a certain short-wave or blue sensitive cone circuit is absent in marmosets and differs from the macaque monkey's circuit. This finding suggests that humans have unique neural wiring for color vision that may be linked to recent evolutionary adaptations.
Researchers from Japan found that cold imagery can positively influence consumer behavior and perception about a product, increasing perceived ambiguity and newness. This study suggests using background images related to coldness in advertisements may be an effective way for marketers to communicate product newness without altering the...
A study found that bilingual readers process Latin and Chinese characters in different ways due to the formation of specialized cortical areas within the Visual Word Form Area (VWFA). In English-Chinese bilinguals, areas were only stimulated by recognition of Chinese logograms, while English-French bilinguals showed equal activation fo...
Research by State University of New York College of Optometry suggests that reading lacks diversity in visual inputs, potentially leading to myopia development. The study proposes a mechanism where sustained reading reduces activation of ON pathways, causing eye growth beyond its focus plane and blurring vision at far distances.
Biyu J. He's groundbreaking research on perceptual cognition and subjective experience has challenged traditional views of consciousness. Her work explores how past experiences shape individual perception and understanding, using innovative techniques like fMRI and EEG.
The study found that a microscopic change in a protein in the retina occurs within a fraction of a trillionth of a second, triggering the perception of light. This process involves the transformation of a molecule called retinal from its 11-cis form to its all-trans form, which takes just one picosecond.