Neural Noise- Devices that decode neural activity can predict preconscious or pre-report mental states, raising ethical and regulatory concerns.1
- Nature coverage frames the debate over whether such capabilities warrant policy or use restrictions for neurotechnology.1 1
Weekly enrichment (2026-07-20)
- The Nature news feature centers on BCIs that can access preconscious mental states and interviews Synchron CEO Tom Oxley, who predicts “whole-brain interfacing” and asks how such systems can be made safe.2
- Synchron reported (as yet unpublished) that, with AI, it can decode an error signal occurring just before a user selects an unintended on-screen option—so the BCI registers a mistake slightly before the user is consciously aware of it.2
- At Caltech, Richard Andersen’s team implanted a “dual-implant” BCI including an array in the posterior parietal cortex, letting the system detect a participant’s intention to act hundreds of milliseconds before she consciously attempted the movement.23
- The underlying primary study, “Implicit mechanisms of intention” (Current Biology, 2022), recorded single-neuron and population activity in the posterior parietal cortex of two tetraplegic participants in a neural-prosthetic clinical study.3
- That study replicated that PPC activity rises sharply hundreds of milliseconds before the reported urge to move, but argued this “preconscious” activity is part of movement-planning population dynamics that begin when the participant first chooses to perform the task, rather than a hidden decision signal.3
- The authors caution that cortical activity can occur without awareness of motor intent when aligned with high-level choices, so algorithm and decoder design are essential to ensure high-level intention signals are correctly translated into prosthetic control.3
- On governance, coverage notes UNESCO has issued neurotechnology guidelines and that U.S. senators introduced legislation directing the Federal Trade Commission to review neurotech data protection.2
- Bioethicist Nita Farahany and colleagues argue the focus should extend beyond data privacy to a fiduciary duty for BCI developers—legally binding them, like a doctor–patient relationship, to act in the user’s best interests.2
- Scholarly work frames these concerns as “neurorights,” including mental privacy, cognitive liberty, mental integrity, and fair access to cognitive enhancement, and notes that much decodable brain activity is subconscious.4