> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivpro-builder/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivpro-builder/subjects/adding-and-editing-subjects.md).

# Adding and editing subjects

### What are subjects?

Subjects are the participants taking part in your experiment. <br>

### Adding new subjects to an experiment

To add a new subject (participant) to an experiment, click on the + button at the top right-hand corner of the Subjects screen.&#x20;

When adding a new participant, you can include the following information about them:

* Subject ID — their name;
* Year born;
* Gender;
* Languages;
* Musical skills;
* Education;
* Occupation;
* Handedness;
* Country of residence;
* Country of major cultural influence; and
* Do you meditate?

Once you’ve completed all the participant’s information, click on Create and they will be added to the Subjects library.&#x20;

Participants can only be added to experiments published to LABS Local (privately). <br>

### Editing subjects

You can edit, duplicate or delete a participant saved in the subjects library. To do this, hold your mouse over the participant you want to edit. This will then highlight the edit, duplicate, and delete options.<br>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://emotiv.gitbook.io/emotivpro-builder/subjects/adding-and-editing-subjects.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
