Devices, Methods, and Graphical User Interfaces for Improving Text Content Generated Based on Decoded Brain Signals

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions that, when executed by a computer system that is in communication with a display generation component and one or more input devices, cause the computer system to:

• decode a set of brain signals that are received from a brain of a human subject, wherein the set of brain signals is associated with attempted activation of motor functions of the human subject;
• determine that the decoded set of brain signals includes an instruction to enter text;
• in accordance with the determination that the decoded set of signals includes an instruction to enter text, generate instructions to display, via the display generation component, a preview of text content in a preview region of a system user interface for revising text content of a system application, wherein the text content is generated based on the decoded set of brain signals and the text content includes one or more tokens:
• in accordance with a determination that the text content meets a set of one or more refinement criteria, wherein the set of one or more refinement criteria includes a criterion that a token from the one or more tokens is identified as a target for revision, generate instructions to cause the token to be visually emphasized relative to other tokens of the one or more tokens;
• detect a user input requesting initiation of a process for revising the text content;
• and
• in response to detecting the user input requesting initiation of the process for revising the text content, initiate the process for revising the text content, including generating instructions to display a plurality of selectable options corresponding to suggestions for revising the token.

A brain computer interface (BCI) system, comprising:

• an implant device configured to record a set of neural signals from a brain of a human subject, wherein the set of neural signals is associated with attempted activation of motor functions of the human subject;
• one or more processors;
• and
• memory storing one or more programs, wherein the one or more programs are configured to be executed by the one or more processors, the one or more programs including instructions for:
• decoding the set of neural signals to obtain a neural text output;
• in accordance with the decoding, generating instructions to display a preview of text content in a preview region of a system user interface, wherein the text content is generated based on the decoded set of neural signals and includes one or more tokens;
• identifying, based on a property of the neural text output, a token from the one or more tokens as a target for revision;
• generating instructions to cause the token to be visually emphasized relative to other tokens of the one or more tokens;
• detecting a user input requesting initiation of a process for revising the text content;
• and
• in response to detecting the user input requesting initiation of the process for revising the text content, initiating the process for revising the text content, including generating instructions to display a plurality of selectable options corresponding to suggestions for revising the token.