Page History: PsyPhy Signal Element
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Page Revision: 2024/11/28 19:02
Summary
|
PsyPhy Signal
|
| Info |
| Category: |
Signal Acquisition |
|
AddIn: |
PsyPhy AddIn |
| Creator: |
OkazoLab |
|
Scope: |
Experiment |
| Owns Snippets: |
None |
|
Usage: |
Snippets |
Properties
| Name | Description | Constraints | Type | On
runtime
change |
|---|
| PsyPhy Settings |
| PsyPhy IP | | | String | |
| Sampling Rate | Defines the sampling rate of the PsyPhy amplifier | | Int32 | |
| Network Protocol | Defines the network protocol for streaming from the PsyPhy amplifier | | Int32 | |
| Channel Settings | Opens a window with the PsyPhy channel settings | | Boolean | |
| Check Impedance Now | Opens a window showing the current impedance value | | Boolean | |
| Sample Type | Defines the type (raw or calibrated) of recorded samples | | Int32 | |
| WiFi Strength | Defines a relative strength of the WiFi signal generated by the amplifier. Weaker WiFi signal may reduce EEG interferences. | | Int32 | |
| Impedance Range | Defines a range for the normalization of the impedance values in kOhm to the red-Green color gradient on the impedance plot | | clRange | |
| XAML Impedance Plot | Returns a live XAML plot showing a map of impedance scores per electrode. The plot can be used for direct binding to the Content property of the XAML ContentControl element, e.g. The ContentControl with a generated plot can be shown on the status screen or by the XAML Layout element. | | UIElem.. | |
| Runtime Control |
| Reconnect Now | Runtime command that reconnects the amplifier and resumes the recording | | Boolean | |
| Missed samples | Returns a total number of missed samples for the current recording | | UInt64 | |
| Reset Signals Now | Runtime commands that resets the signal buffers and data acquisition | | Boolean | |
| Signal Generator |
| Signal Generator | Defines whether signal samples are produces by an oscillatory generator rather than the actual hardware. You can use the signal generator for test runs without hardware | | Boolean | |
| Emulated Sampling Rate | Defines the emulation sampling rate (samples per second), when data is generated or streamed from a file. | | Double | |
| Primary Frequency | Defines the frequency of the primary rhythm in the generated signal, in Hz. Assign the zero to exclude the primary frequency from the generated signal. | | Double | |
| Secondary Frequency | Defines the frequency of the secondary rhythm in the generated signal, in Hz. The secondary frequency magnitude is a half of the primary frequency magnitude. Assign the zero to exclude the secondary frequency from the generated signal. | | Double | |
| Noise Level | Defines the noise level (in % to the norm magnitude of the primary frequency). The noise is added to the generated signal. Assign the zero the exclude the noise from the generated signal. | | Double | |
| Channel Configuration |
| Selected Channels | Defines what signal channels are selected for acquisition within EventIDE. Selected channels are registered in the EventIDE signal pool at runtime and become available for the signal analysis elements. | | List`1 | |
| Selected Channel Count | Indicates how many signal channels are currently selected for acquisition | | Int32 | |
| Total Channel Count | Indicates how many signal channels are available for acquisition in the total | | Int32 | |
| Buffer Size | Defines the size (in samples) of a circular buffer that stores incoming signal data. | | Int32 | |
| Control |
| Is Enabled | If set to false the element is completely omitted when the experiment is run | | Boolean | |
| Title | Title of the element | | String | |
|
The element runs real-time signal acquisition with the PsyPhy amplifier made by
PsyPhy BV
Description
The element allowing connecting one or more PsyPhy amplifiers, selected channels, check the electrode impedance and run real-time signal acquisition at the background of an experimental task. The singal then can be used for online processing, visualization and timestammped recording with other elements in EventIDE,
Practical Use
Preparing the element for the first use
- Add PsyPhy Signal element to the global elements in your experiment and select it.
- In the Properties panel, enter the IP address of the connected amplifer, select the sampling rate and network protocol.
- Chose amplifer channels for acquisition via the 'Selected Channels' property.
- If required, configure the amplifer channels via the 'Channel Settings' property.
- If the amplifier and electrodes are connected, you can check the electrode impedance before running the expeirment, via the 'Check Impedance Now' property.
=== Notes === - The element offers 2 network protocals for a PsyPhy connection: TCP and UDP. The UPD protocal can have a shorter transmission latency but makes larger processor load and potentially can lose some signal samples. Unless it is required by your task, the TCP protocal is recommended.