Introduction

Parameters:CorTec BIC Implant

Parameter Configuration

Source Parameters

SourceCh

The total number of channels: EEG.

SampleBlockSize

Samples per channel per digitized block. Together with the sampling rate, this parameter determines how often per second data are collected, processed, and feedback is updated. For example, at 500 Hz sampling and a SampleBlockSize of 20, the system (e.g., source signal display, signal processing, and stimulus presentation) will be updated 25 times per second. For OpenBCI Cyton the sampling rate is 250Hz and it sends data to buffer every half second. So the suggested value for sample block size is 125. Note that more frequent updating than two times per second is not possible without altering the OpenBCI firmware.

SamplingRate

The sample rate of the system. All data is either acquired at 250Hz In case you are experiencing problems by higher sampling rates (e.g., data loss, jerky display, etc.), increase the SampleBlockSize so that you are updating the system less frequently (usually, updating the system 20-30 times per second is sufficient for most applications), and increase Visualize->VisualizeSourceDecimation. This parameter will decrease the number of samples per second that are actually drawn in the Source display.

SourceChOffset

Offset for each channel.

SourceChGain

Gain for each channel.

ChannelNames

Names of each channel.

Filtering Parameters

EnableStimulation

Flag to enable/disable stimulation.

StimulationParameters

Matrix to store parameters defined as follows: StimulatonId, StimulationType (voltage/current),DurationDuration1, amplitude1,DurationDuration2, amplitude2 ...

StimulationTriggers

Matrix to define a trigger for stimulation. Convention: StimulatonId, trigger equation,repeats, anode electrodes, kathode electrodes

StimulationExpression

Expression to start CorTec Stimulation.

AbortExpression

Expression to abort CorTec Stimulation.

EnableCorTecFilter

Flag to enable/disable CorTecFilter.

CheckState

Integer to connect stimulation parameters.

Contributions:CortecADC