{"id":"speech","kind":"discovery","path":"/discoveries/speech","title":"A way back to conversation.","description":"A man with ALS used an experimental brain–computer interface to turn attempted speech into conversation.","domains":["Access"],"published":"2026-09-05","modified":null,"sourceDate":"2024-08-14","dates":{"eventDate":null,"publicationDate":"2024-08-14","captureDate":null,"lastReviewedDate":"2026-09-05"},"provenance":{"origin":"legacy-projection","externalId":"speech"},"revisions":[],"corrections":[],"review":"Emerging; confidence: unassessed; source-checked; legacy source check. Legacy source check; no named human reviewer is recorded in this projection.","sections":[{"title":"The human problem","text":["ALS can leave thoughts intact while taking away the ability to speak clearly."]},{"title":"The prior constraint","text":["Communication depended on limited movement and other people interpreting speech."]},{"title":"AI’s actual role","text":["Neural decoders translated recorded cortical activity into words, then synthesized speech."]},{"title":"The documented result","text":["The study reported 97.5% word accuracy after further training, sustained over 8.4 months."]},{"title":"Why it may matter","text":["For one participant, the system supported self-paced conversations."]},{"title":"Limitations","text":["One participant, implanted electrodes, and specialist support. This is not a broadly available treatment."]},{"title":"Unresolved questions","text":["Test reliability, safety, and usefulness with more participants and longer follow-up."]}],"limitations":["One participant, implanted electrodes, and specialist support. This is not a broadly available treatment."],"sources":[{"id":"source:speech","title":"An Accurate and Rapidly Calibrating Speech Neuroprosthesis · NEJM","url":"https://www.nejm.org/doi/full/10.1056/NEJMoa2314132","type":"paper"}],"links":[{"title":"Health & biology","path":"/worlds/health"},{"title":"People & culture","path":"/worlds/culture"},{"title":"What if the body could answer intention again?","path":"/threads/agency"},{"title":"Extended story and historical record","path":"/stories/a-way-back-to-conversation"},{"title":"Open this record in the interactive world","path":"/?event=speech"}],"url":"https://brightaifuture.com/discoveries/speech","markdown":"# A way back to conversation.\n\nA man with ALS used an experimental brain–computer interface to turn attempted speech into conversation.\n\nCanonical: https://brightaifuture.com/discoveries/speech\nFormat: discovery\nSource publication: 2024-08-14\nBright publication: 2026-09-05\nSubstantive update: None recorded\nEvidence and review: Emerging; confidence: unassessed; source-checked; legacy source check. Legacy source check; no named human reviewer is recorded in this projection.\n\n## The human problem\n\nALS can leave thoughts intact while taking away the ability to speak clearly.\n\n## The prior constraint\n\nCommunication depended on limited movement and other people interpreting speech.\n\n## AI’s actual role\n\nNeural decoders translated recorded cortical activity into words, then synthesized speech.\n\n## The documented result\n\nThe study reported 97.5% word accuracy after further training, sustained over 8.4 months.\n\n## Why it may matter\n\nFor one participant, the system supported self-paced conversations.\n\n## Limitations\n\nOne participant, implanted electrodes, and specialist support. This is not a broadly available treatment.\n\n## Unresolved questions\n\nTest reliability, safety, and usefulness with more participants and longer follow-up.\n\n## Provenance and history\n\n{\n  \"dates\": {\n    \"eventDate\": null,\n    \"publicationDate\": \"2024-08-14\",\n    \"captureDate\": null,\n    \"lastReviewedDate\": \"2026-09-05\"\n  },\n  \"provenance\": {\n    \"origin\": \"legacy-projection\",\n    \"externalId\": \"speech\"\n  },\n  \"revisions\": [],\n  \"corrections\": []\n}\n\n## Original sources\n\n- [An Accurate and Rapidly Calibrating Speech Neuroprosthesis · NEJM](https://www.nejm.org/doi/full/10.1056/NEJMoa2314132)\n\n## Continue exploring\n\n- [Health & biology](https://brightaifuture.com/worlds/health)\n- [People & culture](https://brightaifuture.com/worlds/culture)\n- [What if the body could answer intention again?](https://brightaifuture.com/threads/agency)\n- [Extended story and historical record](https://brightaifuture.com/stories/a-way-back-to-conversation)\n- [Open this record in the interactive world](https://brightaifuture.com/?event=speech)\n"}