# T15 **Entity class:** Concept or analytic term **Collections:** [[collections/Neurotech|Neurotech]] · [[collections/Consciousness Continuity|Consciousness Continuity]] ## Definition **T15** is a concept or analytic term. [[wiki/BrainGate2 long-term home BCI study|BrainGate2 long-term home BCI study]] is associated with **T15**. Participant has been publicly identified in UC Davis reporting as Casey Harrell; paper uses T15. T15 used [[wiki/intracortical speech and cursor BCI|intracortical speech and cursor BCI]]. >3,800 hours at home across nearly two years. T15 is associated with 1,960,163 decoded words. 183,060 sentences; average 56 wpm. The entry centers on the concept's meaning, practical use, and boundaries, together with the examples that make the distinction operational rather than merely verbal. ## Relationships <!-- BEGIN HUMANIZED RELATIONSHIPS 2026-09-11 --> This entry is routed through [[collections/Neurotech|Neurotech]] and [[collections/Consciousness Continuity|Consciousness Continuity]]. Its source context is developed in [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]]. Status-qualified source edges are preserved in the terminal Research Edges section. ### Key Relationships - [[wiki/BrainGate2 long-term home BCI study|BrainGate2 long-term home BCI study]] is associated with **T15**. Participant has been publicly identified in UC Davis reporting as Casey Harrell; paper uses T15. - **T15** used [[wiki/intracortical speech and cursor BCI|intracortical speech and cursor BCI]]. >3,800 hours at home across nearly two years. - **T15** is associated with 1,960,163 decoded words. 183,060 sentences; average 56 wpm. <!-- END HUMANIZED RELATIONSHIPS 2026-09-11 --> ## Research Edges <!-- BEGIN CONSCIOUSNESS MAPPING TRANSFER RELATIONSHIP GRAPH 2026-09-10 --> #### Consciousness mapping and transfer graph patch — 2026-09-10 **Collections:** [[collections/Neurotech|Neurotech]] · [[collections/Consciousness Continuity|Consciousness Continuity]] **Relationship source:** [[research/Consciousness Mapping and Transfer Ecosystem Relationship Graph - 2026-09-10|Consciousness Mapping and Transfer Ecosystem Relationship Graph — 2026-09-10]] **Related source articles:** [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]] · [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]] · [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] · [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] #### Outgoing typed edges - **Edge 720 — `used` → [[wiki/intracortical speech and cursor BCI|intracortical speech and cursor BCI]]** — **VERIFIED_PEER_REVIEWED**; evidence `BRAINGATE_HOME_NATURE`. >3,800 hours at home across nearly two years. - **Edge 721 — `generated` → 1,960,163 decoded words** — **VERIFIED_PEER_REVIEWED**; evidence `BRAINGATE_HOME_NATURE`. 183,060 sentences; average 56 wpm. #### Incoming typed edges - **Edge 719 — [[wiki/BrainGate2 long-term home BCI study|BrainGate2 long-term home BCI study]] `participant_identifier` → this entry** — **VERIFIED_PEER_REVIEWED**; evidence `BRAINGATE_HOME_NATURE`. Participant has been publicly identified in UC Davis reporting as Casey Harrell; paper uses T15. <!-- END CONSCIOUSNESS MAPPING TRANSFER RELATIONSHIP GRAPH 2026-09-10 -->