Analysis of tagging latency when comparing event-related potentials

12/07/2018
by   Grégoire Cattan, et al.
0

Event-related potentials (ERPs) are very small voltage produced by the brain in response to external stimulation. In order to detect and evaluate an ERP in an ongoing electroencephalogram (EEG), it is necessary to tag the EEG with the exact onset time of the stimulus. We define the latency as the delay between the time the tagging command is sent and the detection of the stimulus on the screen. Failing to control sequencing in the tagging pipeline causes problems when interpreting latency, in particular when comparing ERPs generated from stimuli displayed by different systems. In this work, we present number of technical aspects which can influence latency such as the refresh rate of the screen or the display of a stimulus at different screen location. A few propositions are suggested to estimate and correct this latency.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 1

page 3

06/28/2019

Engineering study on the use of Head-Mounted display for Brain- Computer Interface

In this article, we explore the availability of head-mounted display (HM...
06/27/2020

An Evoked Potential-Guided Deep Learning Brain Representation For Visual Classification

The new perspective in visual classification aims to decode the feature ...
07/06/2011

Evidence-Based Filters for Signal Detection: Application to Evoked Brain Responses

Template-based signal detection most often relies on computing a correla...
02/06/2020

A comparison of mobile VR display running on an ordinary smartphone with standard PC display for P300-BCI stimulus presentation

A brain-computer interface (BCI) based on electroencephalography (EEG) i...
10/10/2018

Fast Approximation of EEG Forward Problem and Application to Tissue Conductivity Estimation

Bioelectric source analysis in the human brain from scalp electroencepha...
01/16/2021

Exponential Kernels with Latency in Hawkes Processes: Applications in Finance

The Tick library allows researchers in market microstructure to simulate...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.