tldrdailynews.com logo
Tag

Perception

All articles tagged with #perception

Floods Reveal a Hidden Flaw in Self-Driving Decision Making
technology9 days ago

Floods Reveal a Hidden Flaw in Self-Driving Decision Making

Waymo’s flooded-road incident shows a perception-to-action flaw: sensors clearly detected water and the car slowed, but the decision stack chose a risky continuation, prompting a recall of 3,791 vehicles while a permanent fix is developed. The piece contrasts sensor architectures across platforms (Tesla Vision, Uber Avride, Zoox) to illustrate how each handles water hazards and edge cases, underscoring that riders must know which system they’re on and whether flood-detection logic has been patched.

via Yanko Design|
#autonomous-vehicles#decision-making#perception
Seeing a Hidden Baby Reveals Your Brain’s Subtle Perception Skill
science1 month ago

Seeing a Hidden Baby Reveals Your Brain’s Subtle Perception Skill

The article explains that some people can spot a hidden baby in a blotchy image, illustrating how the brain constructs reality through pattern recognition and context. Citing a 2015 Cambridge study, it discusses how predictive brain processes can make people see what isn’t there, linking this to mild hallucinations while noting such perceptual guessing is common and not necessarily a sign of illness. It also suggests seeing the hidden figure reflects cognitive flexibility and observational skill rather than a mental health issue.

via YourTango|
#brain#hallucinations#perception
Breath timing reshapes how we read faces
neuroimaging1 month ago

Breath timing reshapes how we read faces

Deliberately slowing or pacing breathing alters how accurately people recognize emotions in faces: slow exhale reduces accuracy while slow inhale can enhance perceptual sensitivity. MEG data suggest the breathing rhythm can desynchronize brain waves from respiration, changing communication between networks that interpret fearful versus neutral expressions. The study used paced breathing with 31 participants and blended facial images, and notes caveats like fixed breathing rates and other physiological factors. Published in European Journal of Neuroscience by Shen-Mou Hsu and Chih-Hsin Tseng.

via PsyPost|
#brain-waves#breathing#facial-expression
Action-First Perception: The Brain Predicts Before It Sees
science1 month ago

Action-First Perception: The Brain Predicts Before It Sees

A new review argues that categorization is not a neutral perceptual step but an action-oriented, predictive function: the brain prepares motor plans before fully perceiving a stimulus, compressing input into abstract categories via feedback-dominated networks and beta/gamma rhythms, with implications for understanding mental health conditions like depression and autism.

via Neuroscience News|
#brain#cognition#neuroscience
Mental imagery taps into the brain’s same perceptual code
science1 month ago

Mental imagery taps into the brain’s same perceptual code

New single‑cell recordings show that many neurons in the ventral temporal cortex fire during both seeing and imagining objects; researchers could reconstruct viewed images from brain activity, and about 40% of imagery‑related neurons reactivated in line with the original patterns, indicating imagination uses largely the same cellular machinery as perception with implications for memory, creativity, and PTSD therapies.

via Earth.com|
#brain#imagery#neuroscience
Chimps Favor Crystals, Hinting at Ancient Cognitive Bias
science2 months ago

Chimps Favor Crystals, Hinting at Ancient Cognitive Bias

Enculturated chimpanzees at a Madrid sanctuary repeatedly preferred crystals over ordinary rocks, inspecting their transparency and shape, and even sorting them into groups. The behavior mirrors perceptual biases that may have guided early human cognition toward recognizing symmetry and Euclidean form, potentially influencing the development of symbolic thought—though the study is small and requires replication in wild apes.

via Indian Defence Review|
#chimpanzees#cognition#crystals
Gait cues reveal mood: study links limb swing to anger and sadness
science2 months ago

Gait cues reveal mood: study links limb swing to anger and sadness

New research shows that how a person walks—especially arm and leg swing amplitude—can signal their emotional state. In experiments, observers correctly guessed emotions from point-light gait videos, with bigger swings associated with anger and smaller swings with sadness or fear; altering swing amplitude made these emotions easier to infer, suggesting gait is a key nonverbal cue with potential applications in CCTV screening and mood-monitoring wearables, though ethical considerations remain.

via The Guardian|
#body-movement#emotion#gait
Moon on the Horizon Appears Bigger: The Brain's Size Trick
science3 months ago

Moon on the Horizon Appears Bigger: The Brain's Size Trick

The Moon looks larger near the horizon due to the Moon Illusion, a brain-based effect in which our perception of distance and size is distorted by contextual cues (like trees, buildings, or a flat horizon). Refraction actually makes the Moon look squished, not bigger, so the size increase is not atmospheric. The leading explanation involves Emmert's Law: the retina records the Moon’s size, but we judge its distance and thus its apparent size based on context, a two-step process that makes horizon objects appear larger even though nothing about the Moon’s actual distance changes.

via Live Science|
#emmerts-law#horizon#moon-illusion
Penis size and build signal status in mate choices, study finds
science4 months ago

Penis size and build signal status in mate choices, study finds

A University of Western Australia study used computer-generated male figures varying in height, body shape and penis size; women tended to rate larger penises and more pronounced physiques as more attractive, while men perceived such traits as more threatening, suggesting penis size acts as a status cue in sexual competition with evolutionary underpinnings, across diverse samples in heterosexual cis contexts.

via BBC Science Focus Magazine|
#attractiveness#humanevolution#penissize
Humans May Have 22–33 Senses, Not Just Five
scienceneuroscience4 months ago

Humans May Have 22–33 Senses, Not Just Five

New research and expert discourse suggest that human perception rests on 22–33 senses, far beyond the classic five. Proprioception, interoception, vestibular balance, sense of agency, and sense of ownership are part of a distributed, multisensory system that blends touch, taste, smell, and sight to create flavor, texture, and self-awareness. Everyday experiences—such as odors altering taste or sounds changing perceived texture—reflect this interconnectedness. Work at the Centre for the Study of the Senses and Crossmodal Laboratory in Oxford, alongside exhibitions like Senses Unwrapped, illustrate how our senses continually negotiate a single, coherent reality.

via SciTechDaily|
#interoception#multisensory#neuroscience