---
title: Real-time Head monitoring
parent: MNE Scan
grand_parent: Learn
nav_order: 3
---
# Real time Head monitoring

This guide gives introductions on how to enable real-time head monitoring during your measurement. Prerequisitory are enabled head position indicator (HPI) coils. Thse are coils, driven at a specific frequency that help estimating the current head position. A general explanation about the method can be found in the appendix of this guide. 

## The HPI View

The HpiView is a functionality that can be added to all Sensor Plugins like `FiffSimulator` or `NeuroMag`. You can access it after you clicked on you sensor plugin and started the datastrem. How to stream pre-recordet data is shown [here](/prerecordeddata.md). Following picture shows how to acces the HpiView and how it looks like. 

picture

### Elements

### Load Data

### Enter Frequencies
Add new page for Head Monitoring tutorial
DOC,ENH: Add new page for Head Monitoring tutorial
