Gaze control is most likely integral to obstacle avoidance (perceiving threats) and landing. It can not be engaged with navigation! (Summary: Two new studies provide the clearest evidence yet that eye position ..........navigation, obstacle avoidance and landing.)

BehavEcolPapers@behavecolpapers.bsky.social · 53m ago

Avian vision: A stable view of a moving world CurrentBiology

Another great example of how the Gramophone Model (GM) works. The external image is projected onto the visual sensory surface, and the brain does its utmost to stabilize and mediate that input through the electro-chemical residue of previous experiences.

Perception / i-Perception@pec-ipe.bsky.social · 2d ago

🌊 👀 Can two simple patterns create something that really isn't there? This new paper introduces Dynamic Illusory Waves (DIWAs)—a striking illusion where relative motion gives rise to flowing, transparent phantom surfaces. Make your own: maltacogsci.org/diwa/ Full paper: doi.org/10.1177/2041...

One more step toward the Gramophone Model (GM)

Earl K. Miller@earlkmiller.bsky.social · 3d ago

Categorization is not just feedforward and at the "end" of cortex. It is an interplay between feedforward and feedback signals and areas. Dynamic reversal of IT-PFC information flow orchestrates visual categorization under perceptual uncertainty doi.org/10.1016/j.pn... #neuroscience

Q: How can we play chess? Or more precise, how can you construct future constellations with your pieces? A: Because humans are capable to construct latent specific action trajectories from all pieces based on the current position. The GM: the current position projected on the sensory surface

A very important finding. The observation that neurons don't simply fire more for behaviorally relevant sounds, but become more precisely timed and rhythmic, shifts the focus from the amount of neural activity to its temporal organization. Within the Gramophone Model (GM), however, a stimulus

Earl K. Miller@earlkmiller.bsky.social · 4d ago

Neurons don't just fire more for important sounds, their activity becomes more precisely timed and rhythmic Representations of spatial saliency in auditory cortex are selectively organized through temporal coordination www.biorxiv.org/content/10.6... #neuroscience

This appears to reinforce a pattern emerging across recent neuroscience: the critical distinction is increasingly not how much neurons fire, but how their activity is temporally organized and stabilized. Within the Gramophone Model (GM), such findings fit naturally with the idea that the brain's

Earl K. Miller@earlkmiller.bsky.social · 4d ago

Neurons don't just fire more for important sounds, their activity becomes more precisely timed and rhythmic Representations of spatial saliency in auditory cortex are selectively organized through temporal coordination www.biorxiv.org/content/10.6... #neuroscience

Learning Does Not Exist

Very interesting work. The Gramophone Model (GM) also explicitly addresses anesthesia, but from a different mechanistic perspective. Within the GM, anesthesia does not stop the continuous bombardment of external sensory projections onto the sensory surface. Instead, it suppresses

@neurabenn.bsky.social Very interesting study. The stable topographic organization of imagery is compelling. However, I wonder whether these findings also point to a more fundamental mechanistic question: how are such internally generated sensory experiences physically

Rocco Chiou@rocco-chiou.bsky.social · 4d ago

At long last, I’m excited to share our latest preprint on the cortical topography of mental imagery! Building on the tethering hypothesis of brain evolution, we examined the spatial layout of imagery-driven neural activities to know how visual, auditory, tactile & multisensory imagery is organised.

This is where you are being led astray. Memory, in general, does not work this way. However, this article is specifically about remembering when something happened, where such a mechanism is much more likely.

Daily Neuron@dailyneuron.bsky.social · 5d ago

Ask when something happened and the mind starts at now, running backward. Twenty-six people in VR headsets showed how fast that rewind goes. #cogsci dailyneuron.com/backward-sca...

The Gramophone Model (GM) at work:

Christoph Strauch@cstrauch.bsky.social · 4d ago

Now final in @elife.bsky.social: #Synesthetes really do 'see' when reporting colors while reading (typeface gray) numbers: pupils change according to the perceived colors' brightness - if a synesthete sees a bright yellow, the pupils become smaller. elifesciences.org/articles/110...

Within the Gramophone Model, traveling waves and brain waves are themselves the electrochemical grooves produced through sensory transduction. They are not merely carriers that act like holograms or radio signals. Rather, they constitute the continuously evolving electrochemical continuation of the

Earl K. Miller@earlkmiller.bsky.social · 5d ago

Brain waves can act like holograms/radio signals. Traveling waves can carry spike-timing info, interfere like light waves in holography, and get processed in frequency stages. doi.org/10.3389/fnco... #neuroscience

If Internal Models Exist, Then Prove It! www.researchgate.net/publication/...

(PDF) The Gramophone Model Irrevocably Reverses the Burden of Proof for Internal Models - A Systematic Comparison Across Four Domains of Scientific Evaluation

PDF | Since the cognitive revolution of the 1950s, Internal Models (IM) have constituted the dominant theoretical paradigm in cognitive neuroscience,... | Find, read and cite all the research you need...

researchgate.net

I think your critique of reductionism and exclusively brain-internal explanations raises important points. In my view, many of your criticisms closely overlap with those of the Gramophone Model. Where we differ is the conclusion. My impression is that, lacking an alternative mechanistic

How the Gramophone Model (GM) completely explains grasping. The autonomous external movement of the fingertips is projected onto the sensory surface: www.researchgate.net/publication/...

(PDF) The Complete Clarification of All Functional Perception Processes Within Grasping - A Complete Perceptual Foundation of Ideomotor Action

PDF | Grasping is commonly explained in terms of motor planning, control variables, or cognitively represented intentions. Despite decades of research,... | Find, read and cite all the research you ne...

researchgate.net

The distinction proposed in this article between transient neural dynamics that respond to changes in sensory input and sustained neural dynamics that maintain ongoing brain states is consistent with the Gramophone Model (GM). Within the GM, the primary moment of consciousness arises at the

Earl K. Miller@earlkmiller.bsky.social · last wk.

Are brain rhythms a steady hum or a brief buzz? Both. Alpha and beta activity are relatively sustained, helping maintain ongoing brain state, supporting its role in top-down control. Universal rhythmic architecture uncovers two modes of neural dynamics www.nature.com/articles/s41... #neuroscience

Who taught the choir to sing that 10.000-part harmony? www.researchgate.net/publication/...

(PDF) The Gramophone Model Relocates the Organization of Cognition from the Brain to the Sensory Surface - A Physical–Ecological Framework for Perception and Action

PDF | Contemporary theories of perception and action predominantly explain behavior through internal representations, predictive models, and inferential... | Find, read and cite all the research you n...

researchgate.net

Pekka Lund@pekka.bsky.social · 2w ago

Gemini suggested "a member of a massive choir singing a complex 10,000-part harmony", which isn't exactly easy to imagine. But such tiny ambiguous on its own role seems like the key point. And I think people have much less difficulty grasping it when it comes to thinking about digital networks.

@earlkmiller.bsky.social @pekka.bsky.social Interesting discussion. Whether neurons are described as "jack-of-all-trades", "utility players", members of a choir, or hammers used in many different constructions, all of these metaphors share one implicit assumption: they attribute the

Pekka Lund@pekka.bsky.social · 2w ago

I think the way New Scientist calls most neurons "generalists" or "jacks-of-all-trades" is wrong. It's not like individual neurons can do many things on their own, as those terms suggest. Instead the research shows they play small roles in many calculations of a messy network.

@kikumotoatsushi.bsky.social @fahrenfort.bsky.social @haslagter.bsky.social Very interesting and revealing work—especially as it masterfully challenges the traditional mo-tor-command framework by demonstrating that action selection ....

Jet Lageman@jetlageman.bsky.social · last wk.

Our latest work indicates that when we have to choose how to act to reach our goals, we do not just select the correct motor commands; we select between integrated representations of goals, actions, and expected sensory outcomes. Our results invite us to rethink how the brain controls action!

This study illustrates many of the conceptual problems that continue to dominate contemporary motor-control research. Although the ..... www.researchgate.net/publication/...

Jakub Limanowski@jlimanowski.bsky.social · 6mo ago

Preprint alert 🚨 Led by @fquirmbach.bsky.social We examined pupillary responses when people had to gaze-track visual finger movement feedback that was congruent or inverted - and when they were preparing for this in a preceding delay phase: www.biorxiv.org/content/10.6...

(line 52-58): "For example, during tennis if a serve lands outside the lines, the loss associated.....teaching signal that combines sensory properties of error with reward." Sorry again, but you do not understand the game of tennis: www.researchgate.net/publication/...

(PDF) “Watch The Ball Trajectory!”

PDF | The explanatory model of all Motoric Movement Actions provides the final answer in what perception and motoric processes are needed in every... | Find, read and cite all the research you need on...

researchgate.net

Reza Shadmehr@rezashadmehr.bsky.social · 2w ago

If an action results in error, each neuron requires an individualized teaching signal that guides change in its output. This is the credit assignment problem of learning. Are there neurons in the brain that can compute such a sophisticated teaching signal? Yes. www.biorxiv.org/content/10.6...

"Neurons in the brain are often many synapses away from motoneurons, yet if a movement results in error, each distant neuron needs a teacher that considers its specific contribution to production of that movement." Sorry for being hatefull, blunt, etc.. Of course these are serious scientists but I

Reza Shadmehr@rezashadmehr.bsky.social · 2w ago

If an action results in error, each neuron requires an individualized teaching signal that guides change in its output. This is the credit assignment problem of learning. Are there neurons in the brain that can compute such a sophisticated teaching signal? Yes. www.biorxiv.org/content/10.6...

@gordonfeld.bsky.social @hugospiers.bsky.social @cgahnstrom.bsky.social @matthieubernard.bsky.social @mgarvert.bsky.social External spatiotemporal templates emerge through the sequential execution of node-to-node transitions within the organism–environment relation. Perceptually, this

Hugo Spiers@hugospiers.bsky.social · 2w ago

Written together with @pfvelasco.bsky.social co-first author and analysis input from @cgahnstrom.bsky.social @matthieubernard.bsky.social and others incl @mgarvert.bsky.social A great team effort to explore this topic

Not clear on what could possibly be "direct perception" Perception will always be mediated by physical interaction, which will at the very least define the scope of the organism's umwelt

@adw.bsky.social Direct perception is the factual projection of the actual vista onto the sensory surface, like the car in this image.

Now the novum is that the still latent positions of the car need to arise from the manifest part, maintaining its shape and its tau-value. The brain stabilizes this image and adds this information based on the current action and former residu of former experiences. And solely the

projected directly onto the sensory surface and are directly stabilized by the brain on that sensory surface.

complete phenomenon that arises out of this explains how we can guide actions precisely. Only when a marble is connected to the whole marble run will provide definite answers. So this is direct perception as Gibson has meant it to be, but wasn't capable to explain. The affordances are

The Gramophone Model (GM) - Consciousness versus perception/cognition 1. Consciousness (The Instantaneous Moment) - Consciousness is the physical phenomenon that arises at each discrete moment in time at the sensory interface, when the current external projection is coupled with efferently

Castanheira et al. present the relation between attention, simplified task structure, and multi-step planning as an unresolved problem. Yet this problem has already been addressed across keypad entry, piano performance, supermarket navigation, puzzle solving, and large-scale

Jason da Silva Castanheira@jasondasilvac.bsky.social · 4w ago

Out now in eLife, our new and improved paper on Attention and planning. Here, we explore how attention acts like an inductive bias that selects relevant information on which to plan. 📍🗺️👀 (1/5) elifesciences.org/articles/108... @smfleming.bsky.social