windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
„Palantir has already lost the only contest that matters: the one for public perception. […] they apparently never thought to search “The Streisand Effect.”“
Palantir Sues Swiss Magazine For Accurately Reporting That The Swiss Government Didn’t Want Palantir https…
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
When knowledge interferes with perception: Neural mechanisms of the semantic amplification of visual false memory https://www.biorxiv.org/content/10.64898/2026.02.24.707651v1 What will AI scene description do to blind people and their mental imagery?
Hybrid Foveated Path Tracing with Peripheral Gaussians for Immersive Anatomy
Constantin Kleinbeck, Luisa Theelke, Hannah Schieber, Ulrich Eck, R\"udiger von Eisenhart-Rothe, Daniel Roth
https://arxiv.org/abs/2601.22026 https://arxiv.org/pdf/2601.22026 https://arxiv.org/html/2601.22026
arXiv:2601.22026v1 Announce Type: new
Abstract: Volumetric medical imaging offers great potential for understanding complex pathologies. Yet, traditional 2D slices provide little support for interpreting spatial relationships, forcing users to mentally reconstruct anatomy into three dimensions. Direct volumetric path tracing and VR rendering can improve perception but are computationally expensive, while precomputed representations, like Gaussian Splatting, require planning ahead. Both approaches limit interactive use.
We propose a hybrid rendering approach for high-quality, interactive, and immersive anatomical visualization. Our method combines streamed foveated path tracing with a lightweight Gaussian Splatting approximation of the periphery. The peripheral model generation is optimized with volume data and continuously refined using foveal renderings, enabling interactive updates. Depth-guided reprojection further improves robustness to latency and allows users to balance fidelity with refresh rate.
We compare our method against direct path tracing and Gaussian Splatting. Our results highlight how their combination can preserve strengths in visual quality while re-generating the peripheral model in under a second, eliminating extensive preprocessing and approximations. This opens new options for interactive medical visualization.
toXiv_bot_toot
At some point this month, a local chain mini-market switched its checkout area from something fairly open, to a perspex and metal cage - and my perception of crime in the area has shot up.
"Does he really believe those strange and bizarre things?"
"He has a rumor-based reality perception... so, yeah..."
#reality #realitycheck #humor
Some City Some Nature II 🏙️
一些城一些自然 II 🏙️
📷 Nikon F4E
🎞️ ERA 100, expired 1993
#filmphotography #Photography #blackandwhite
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Hierarchic-EEG2Text: Assessing EEG-To-Text Decoding across Hierarchical Abstraction Levels
Anupam Sharma, Harish Katti, Prajwal Singh, Shanmuganathan Raman, Krishna Miyapuram
https://arxiv.org/abs/2602.20932 https://arxiv.org/pdf/2602.20932 https://arxiv.org/html/2602.20932
arXiv:2602.20932v1 Announce Type: new
Abstract: An electroencephalogram (EEG) records the spatially averaged electrical activity of neurons in the brain, measured from the human scalp. Prior studies have explored EEG-based classification of objects or concepts, often for passive viewing of briefly presented image or video stimuli, with limited classes. Because EEG exhibits a low signal-to-noise ratio, recognizing fine-grained representations across a large number of classes remains challenging; however, abstract-level object representations may exist. In this work, we investigate whether EEG captures object representations across multiple hierarchical levels, and propose episodic analysis, in which a Machine Learning (ML) model is evaluated across various, yet related, classification tasks (episodes). Unlike prior episodic EEG studies that rely on fixed or randomly sampled classes of equal cardinality, we adopt hierarchy-aware episode sampling using WordNet to generate episodes with variable classes of diverse hierarchy. We also present the largest episodic framework in the EEG domain for detecting observed text from EEG signals in the PEERS dataset, comprising $931538$ EEG samples under $1610$ object labels, acquired from $264$ human participants (subjects) performing controlled cognitive tasks, enabling the study of neural dynamics underlying perception, decision-making, and performance monitoring.
We examine how the semantic abstraction level affects classification performance across multiple learning techniques and architectures, providing a comprehensive analysis. The models tend to improve performance when the classification categories are drawn from higher levels of the hierarchy, suggesting sensitivity to abstraction. Our work highlights abstraction depth as an underexplored dimension of EEG decoding and motivates future research in this direction.
toXiv_bot_toot
“Each conscious perception is the local registration of the entire state of the universe at any given moment.” - Christoph Cox
The Third Visual Pathway for Social Perception
David Pitcher
https://arxiv.org/abs/2512.09351 https://arxiv.org/pdf/2512.09351 https://arxiv.org/html/2512.09351
arXiv:2512.09351v1 Announce Type: new
Abstract: Influential models of primate visual cortex describe two functionally distinct pathways: a ventral pathway for object recognition and the dorsal pathway for spatial and action processing. However, recent human and non-human primate research suggests the existence of a third visual pathway projecting from early visual cortex through the motion-selective area V5/MT into the superior temporal sulcus (STS). Here we integrate anatomical, neuroimaging, and neuropsychological evidence demonstrating that this pathway specializes in processing dynamic social cues such as facial expressions, eye gaze, and body movements. This third pathway supports social perception by computing the actions and intentions of other people. These findings enhance our understanding of visual cortical organization and highlight the STS's critical role in social cognition, suggesting that visual processing encompasses a dedicated neural circuit for interpreting socially relevant motion and behavior.
toXiv_bot_toot
The fact that so many on the Fediverse remain so uneducated isn’t surprising. It only reveals how deeply bourgeois ideology continues to shape public consciousness, molding perception to serve the interests of capital, especially US imperialism.
Just as it took decades for many to see the war on terror for what it truly was, and even longer to grasp Palestine’s struggle against imperialism and settler colonialism, the same pattern will repeat.
I wholeheartedly reject imperialis…
I have long hated Donald Trump with every fiber of my being, and despise his enablers no end. So this new hellscape doesn’t change my perception of him and his administration but it does make me actually nauseous.
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Motion perception with visual prostheses #BCI #NeuroTech
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Sound frequency predicts the bodily location of auditory-induced tactile sensations in synesthetic and ordinary perception https://academic.oup.com/nc/article/2026/1/niaf064/8429902?login=false
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
A Lausanne, une radiographie récente du centre-ville révèle que seuls 14% des clients s’y rendent en voiture, alors que les commerçants évaluaient cette part Š 40%. Ce fossé entre perception et réalité ne se limite pas Š la capitale vaudoise. Le constat est le même Š Genève ou dans les petites villes, où les commerçants surestiment parfois du simple au double l’importance de l’automobile dans les habitudes de leur clientèle.
https://www.letemps.ch/suisse/vaud/en-graphiques-les-petits-commerces-lausannois-se-meurent-ils-vraiment-plus-qu-ailleurs
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Enhanced pitch perception in early blind individuals and musicians is due to reduced internal noise https://www.biorxiv.org/content/10.1101/2025.11.25.690447v1
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Long-term visual-to-tactile stimulation induces functional reorganization of thalamic pathways to achieve visual perception https://www.sciencedirect.com/science/article/pii/S105381192500655X using haptic sensory substitution;
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Vivid imagery is reported faster than weak imagery https://academic.oup.com/nc/article/2026/1/niaf054/8429936 "suggestive of a shared mechanism employed across both perception and imagery that evaluates the strength of visual experience"; mental imagery
Neural vision restoration in ophthalmology https://link.springer.com/article/10.1007/s10439-026-03989-y "restore visual perception through retinal prostheses, optic nerve and thalamic implants, cortical brain-computer interfaces (BCIs), optogenetics, and non-invasive s…
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Any #NeuroAI models out there that can make sensible predictions about mastering crossmodal perception (vision) using visual-to-auditory sensory substitution? I suspect not: out-of-distribution reasoning is really hard for AI. #LLM #AI
windsurfers: Windsurfers network (1986)
A network of interpersonal contacts among windsurfers in southern California during the Fall of 1986. The edge weights indicate the perception of social affiliations majored by the tasks in which each individual was asked to sort cards with other surfer’s name in the order of closeness.
This network has 43 nodes and 336 edges.
Tags: Social, Offline, Weighted
Did you see the sound? A Bayesian perspective on crossmodal perception in low vision https://www.biorxiv.org/content/10.64898/2025.12.24.696433v1 Temporal "audiovisual interactions are constrained by the presence of a usable visual signal"
Electrotactile characteristics of rectified random noise stimulation (r-tRNS) on the forehead: a comparison with tDCS https://ieeexplore.ieee.org/document/11252854 "r-tRNS has the potential to be effectively utilized in applications requiring electrotactile perception, such as sensor…