David Orenstein writes about a new theory from MIT's Picower Institute arguing that cognition and consciousness arise from analog computations performed by traveling brain waves, rather than from the sequential processing of fixed neural circuits.
- Published in *The Journal of Neuroscience* by Earl Miller, Scott Brincat, and Jefferson Roy; the paper is a review synthesizing years of experimental evidence.
- Alpha and beta waves act as "mobile stencils" that spatially and temporally gate which gamma waves can process sensory input, enabling what the authors call "spatiotemporal computing."
- Ephaptic coupling — electric fields directly influencing neural spiking — provides a rapid feedback mechanism by which waves coordinate the very neurons that generate them.
- Anesthesia studies by Miller and Emery Brown show three drugs with different molecular targets all disrupt large-scale wave organization to produce unconsciousness, supporting the claim that consciousness depends on wave integrity rather than specific receptors.
- Miller acknowledges the theory still needs direct evidence of analog computation in brain wave patterns.
- Published in *The Journal of Neuroscience* by Earl Miller, Scott Brincat, and Jefferson Roy; the paper is a review synthesizing years of experimental evidence.
- Alpha and beta waves act as "mobile stencils" that spatially and temporally gate which gamma waves can process sensory input, enabling what the authors call "spatiotemporal computing."
- Ephaptic coupling — electric fields directly influencing neural spiking — provides a rapid feedback mechanism by which waves coordinate the very neurons that generate them.
- Anesthesia studies by Miller and Emery Brown show three drugs with different molecular targets all disrupt large-scale wave organization to produce unconsciousness, supporting the claim that consciousness depends on wave integrity rather than specific receptors.
- Miller acknowledges the theory still needs direct evidence of analog computation in brain wave patterns.
MIT scientists theorize in The Journal of Neuroscience that the brain generates cognition and consciousness through traveling waves of rhythmic neural activity performing analog computations. The brain uses local waves as a fast control system to coordinate neurons, with slower alpha/beta waves directing where/when faster gamma waves process sensory data.The authors argue that consciousness emerges when these wave patterns bring the cortex into a globally integrated state, and that the theory opens a path toward non-invasive, wave-based clinical treatments.
- Co-authors Scott Brincat and Jefferson Roy provided experimental evidence that waves influence neural spiking via ephaptic coupling (electric field-mediated interaction), not just synaptic transmission.
- Anesthesia studies with Emery N. Brown showed three structurally unrelated drugs all disrupt the same large-scale wave organization to induce unconsciousness, supporting a wave-based account over receptor-specific ones.
Mixed selectivity, where neurons respond to multiple cues, enhances brain computation but requires waves for coordination.
- Miller cautions the analog-computation claim is still theoretical and his lab's next step is to find direct signatures of wave interference in recorded brain-wave patterns.
- Co-authors Scott Brincat and Jefferson Roy provided experimental evidence that waves influence neural spiking via ephaptic coupling (electric field-mediated interaction), not just synaptic transmission.
- Anesthesia studies with Emery N. Brown showed three structurally unrelated drugs all disrupt the same large-scale wave organization to induce unconsciousness, supporting a wave-based account over receptor-specific ones.
Mixed selectivity, where neurons respond to multiple cues, enhances brain computation but requires waves for coordination.
- Miller cautions the analog-computation claim is still theoretical and his lab's next step is to find direct signatures of wave interference in recorded brain-wave patterns.
