Electroencephalography (EEG) is the recording of the brain's spontaneous electrical activity electrical activity from multiple electrodes placed on the scalp.

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Latency jitter in ERPs (event related potentials)

According to the context updating theory (Donchin, 1981), P300 is elicited by rare events due to conflicting expectancy. However, the hard oddball task in Verleger (2014) failed to produce a P300. ...
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84 views

Conducting brain stimulation at home

Given articles like this, and their associated research {1}, I am developing an interest in transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and other forms of ...
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324 views

What computerized EEG analysis algorithms are there?

I got a commercial-grade EEG headband and am trying to look at the data it outputs. The headband quantifies raw EEG signal from a single forehead dry sensor into a range of EEG bands (alpha, beta, ...
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334 views

EEG correlates of handedness

Can any one suggest a good article about features of EEG of left-handed people? I was surprised when find that there are only few old articles about it. I find only one new article by Propper, Ruth ...
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What is a good software/hardware combination for biofeedback monitoring that includes GSR, GSM, HRV, and EEG?

i'm looking for a lab setup for psychological experiments to help people relieve stress better with various auditory and visual stimuli. what i want is a software like brainbay that can use not just ...
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36 views

What is the best way to turn EEG scans in to 3D images?

I'm looking for the best way to turn standard EEG scans into 3D images of activity in the brain over the time of scanning, for example like the Glass Brain images or even connectome-style images. I ...
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1answer
64 views

How to build a high sensitivity EEG headset for continual monitoring?

After having a conversation with a couple of the more popular "consumer" level EEG makers such as Versus, I have found that their monitoring abilities are either ...
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70 views

Suggestion for wearable EEG headset

We need wearable EEG headset with raw data output accessible from various platforms. I heard that devices like that have commonly the output encoded and available adapters are designed for one or just ...
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30 views

Can brainwaves from EEG be used to measure enjoyment of media?

It seems to be very hard to figure out automatically, what content I will enjoy and what content I will not enjoy. Of course, there are methods that require me to sit in front of a computer and press ...
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312 views

Are there any EEG procedures currently available/in development that can formulate letters/words from deliberate, internal monologue?

I am thinking of the combination of an EEG-like device and software to monitor and analyze (very) deliberate thoughts of letters/words. The input would be in the form of raw electrical brain ...
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12 views

Can you recommend good resources/literature on understanding EEG for the domain of Neurofeedback (peak performance and meditation)

I want to start developing software for consumer eeg headsets, the ones that currently exist, and the better ones that will arrive in the coming years. I'd like to go in the direction of cognitive ...
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14 views

Pre-motor potentials

I see a problem when interpreting pre-motor potentials (like readiness potential or movement-related cortical potential) that are detected before the movement takes place. These potentials occur at ~ ...
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37 views

Database of EEG signal phenomenon

I'm working on a paper describing the current state of EEG headsets used as computer interfaces. One of the things that is key for building a system using an EEG headset as a controller is having some ...
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45 views

Is there any publicly available algorithms for Neurofeedback using EEG?

How do these software work? Is there a clear algorithm I can follow to make one by myself? I can make software for Mac, Web and Mobile. I also have two EEG headsets: Emotiv Epoc and Neurosky ...
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1answer
35 views

Have EEG signals in auditory speech perception task have ever been analyzed for correlation with auditory stimuli itself?

This can be useful for getting a better grip on understanding the link between actual stimuli, brain processing, and EEG data.
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40 views

Are there any studies that were able to localize Fusiform Face Area (FFA) for face processing using EEG source localization algorithms?

I am looking for references where people were able to collect 128-256 channel EEG data during face perception task and the map it onto FFA or OFA using source localization algorithms?
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137 views

What happens in your brain when you see a dinosaur in this stenographic image?

You might have come across stereographic Images like the one shown below (found here): What happens in your brain when you observe the dinosaur? (as you put your face on the image by touching your ...
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27 views

High Density Signal Meaning

When I was reading an article, I found that it describes the EEG signal as a high-density signal. So what is that mean? EMG is high temporal resolution and moderate spatial resolution ...
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81 views

Neurophysiological indications of focus and motivation

Is there any way to detect a subject being focused or highly motivated (assuming that these two states are essentially the same) using any sort of external detection, such as fMRI or EEG? How would ...
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41 views

EEG Alpha waves during eyes open mindfulness training - any research on this subject

I recently conducted an experiment recording EEG during an eyes open mindfulness meditation. I saw a substantial amount of alpha bursts throughout the meditation both in the occipital and frontal ...
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How are hypotheses or 'regions of interest' selected in an exploratory ERP study?

For instance, in a research area where there are no directly relevant ERP studies to provide a rationale for specific hypotheses. I recall hearing about data-driven selection of components to ...
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26 views

EEG data processing: large data file seems empty

We have been running an experiment trying to collect ABR data using the Brainvision EP-PreAmp and Actichamp system. We ran several successful tests with short versions of our experiment, about 10-15 ...
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1answer
251 views

Do alpha waves vanish when I open my eyes in a dark room?

Alpha brain waves show up in your EEG when you close your eyes. Do they vanish when I open my eyes in a dark room? To put it in a different way: Is it necessary to have your eyes shut or that you ...
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35 views

Python MNE - reading EEG data from array [closed]

I have EEG data that comes in the form of a 3D numpy array (epoch * channel * timepoint). timepoint is a 256 element array containing each sampled timepoint (1s total, at 256Hz). epoch is an ...
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329 views

Is it possible to detect the mental flow state with EEG?

I know that it is possible to detect "focus" with a consumer EEG with a single electrode and a reference point (ear clip), even without conductive gel, but is it possible to detect a flow state with ...
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133 views

Applications and Limitations of EEG Electrode Pooling - Averaging across time series

Is there any literature that has addressed electrode pooling? In particular, are there any standards concerning what pools (e.g. frontal, central, posterior vs. electrode pairs) could be used or any ...
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55 views

Description of an EEG experiment

I am working on Brain-Computer interfaces. In my project we try to control the movement of a robot in three directions, namely forward, right and left. We have done an EEG experiment where we have ...
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109 views

How does the alpha brain wave frequency range distribute over the population?

Alpha brain waves show up in your EEG when you close your eyes. Alpha waves are brain waves between 8 and 13 Hz. How does this frequency range distribute over a population of people?
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Continuous Basic EEG analysis [closed]

So, I have continuous EEG data from a control group and a test group. The recording was done while the participants were at rest, so no task was performed. I want to start with some basic analysis, ...
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67 views

What is bispectrum?

I am working on a project that uses EEG signals of the brain to identify emotional states. While surveying the literature, I came across several references where "derived features of bispectrum" are ...
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1answer
293 views

How is the signal-to-noise ratio of an event-related-potential measured?

I often encounter publications where the authors try to "increase the SNR (signal-to-noise ratio) of electroencephalogram (EEG) signals". Some define a numeric value of SNR of EEG signals, but I am ...
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118 views

What cognitively interesting event-related potentials at FP1, FP2, TP9 or TP10 can be measured with consumer-grade EEG hardware?

I'm looking for cognitively interesting event-related potentials at places like FP1, FP2, TP9 or TP10 that can be measured with consumer-grade EEG hardware. Right now I have an Interaxon Muse EEG and ...
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1answer
150 views

Phase locking value (PLV) between $x(t)$ and $x(t-T)$

I have been trying to calculate PLV using the hilbert transform (reference). To test if it even works or not, I calculated PLV between $x(t)$ and $x(t-T)$. i find that it drops to zero very quickly as ...
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133 views

What are proper EEG frequency bands and electrode placements for imagined speech?

I am doing an EEG experiment about imagined speech recognition. Which frequencies will have the most relevant information? I chose the frequency band [4-40] Hz as a start, mainly because of signal ...
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185 views

Cost of EEG devices suitable for neurolinguistic research

What is the cost of an EEG device (electrodes and other indispensable hardware, software if available for standard office computers, or a whole package with a dedicated computer and software) that is ...
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51 views

What are some good references for preprocessing and analysis of the P300 response from EEG data in Python?

I have just started to work on problems in neuroscience on my own. I sought to analyze the P300 response from EEG data because I was trying to understand a Kaggle.com challenge that used it. I found ...
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28 views

Accuracy of methods for detection of dementia in EEG [closed]

I found these methods mentioned in bioengineering and other papers: Fractal Dimension Measure, Probability Density Function of the Zero-crossing Intervals, Approximate Entropy But I think every of ...
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1answer
57 views

Why is the order of brainwaves not labelled “alphabetically”?

The brainwave - frequency breakdown is as follows: Delta wave – (0.1 – 3 Hz) Theta wave – (4 – 7 Hz) Alpha wave – (8 – 15 Hz) Mu wave – (7.5 – 12.5 Hz) SMR wave – (12.5 – 15.5 Hz) Beta wave – (16 – ...
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Effectiveness of implicit measures of deception (e.g., sweating, eye focus, EEG) when filling out online questionnaire

I'm working in my master thesis on a method of detecting user deception or lying when answering online questionnaires using his implicit feedback like sweating, eye focus, EEG etc. I would like if ...
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1answer
57 views

Can fMRI and EEG signals be generated from NEF models?

The basic function of the NEF is to map the outside world onto neurons, using the firing rates of the neurons. It also supports various neuron models. Have these firing rates been used to create EEG ...
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63 views

Isolating the desired event in EEG signals [closed]

When we took an EEG data from subjects, does the subject have to be in "neutral state" i.e there is no anger, no sadness, no happiness ...etc. and they also in situation that they neither do any ...
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1answer
138 views

Removing ocular artifacts from EEG signals

I have read the following paper , which is try to remove EOG artifacts from EEG signal , the authors give the following figure . The authors claim that components 1 and 2 represent ...
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1answer
187 views

How does glial cell activity influence fMRI, EEG signals?

Glial cells comprise about 80% of the cells in the human brain. But physiological models of EEG and fMRI often relate only to neuronal activity. How do glial cells affect large-scale imaging ...
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1answer
226 views

How to filter noise in EEG data

I am a computer science student and I'm doing something for a psychology professor. We have EEG data from an experiment where a person was shown 140 images for 2 seconds each. We placed 64 electrodes ...
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147 views

How to compare brain waves?

I'm a Java developer completely naive of brain waves and such. Could anyone tell me how to compare them? For instance, how can I compare: and this: What fields of study should I focus on? I ...
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1answer
119 views

Is there a report of a successfully EEG-Based Brain-Computer Interface (BCI) using image training?

Currently I am involved in constructing an EEG-Based BCI. The goal of the BCI is to control which light in a series of lightbulbs lights up. The plan is to use different images (i.e. a flower versus ...
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1answer
162 views

Detect an imagination EEG signal

Is there an EEG brain signal that has specific features resulting from imagination? For example, if a subject sees a car and imagines that the car is moving left. Could we capture this signal and ...
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44 views

Dependancy EEG signals from regions of the brain

When we record an EEG signals , we apply an ICA on it , this algorithm assumes that the sources of signals are independent , could I assume that each region in the brain work independently , i.e the ...
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55 views

Detecting signs of dementia in EEG signal

I would like to know, how dementia can be recognized in the EEG signal of patients with dementia. What I have found so far: According to (Henderson et al., 2006) subjects with dementia are ...
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187 views

Measurement of phase difference between two signals using cross correlation vs. fourier transform

I am studying eeg signals with the aim of distinguishing between preictal and interictal epilepsy states based on the eeg signal. I have read some papers and one of the metrics used to distinguish ...