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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529 views

Is there a better way to describe brain activity than EEG “brain waves”

I've been reading about EEG brain waves, which are specific waveforms that are observed on the EEG output, and are usually scored by humans. This concept has been around for quite some time. Is there ...
9
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3answers
1k views

What is the standard way to analyze EEG data in a mismatch negativity paradigm?

I'm running an EEG experiment using a modified auditory mismatch negativity (MMN) design, and I'm wondering if anyone can tell me the best method for data analysis (and recommend any stats ...
8
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1answer
93 views

Is there a metric of the overall excitation of the brain or nervous system?

I'm thinking of a way to describe what's happening to a single channel EEG/MEG sensor output. I've noticed that there is significant difference in the readings from a quiet observations, versus a ...
8
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1answer
101 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 ...
7
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1answer
122 views

Significant baseline, Oddball paradigm

I recently conducted an EEG experiment using a passive Oddball paradigm with two experimental conditions : standard stimuli (occurring with a 85% probability) and deviant stimuli (occurring with a 15% ...
7
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1answer
75 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 ...
6
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1answer
145 views

Intro to EEG - Electroencephalography [duplicate]

Are there any introductory level text, researches or video for "How to learn EEG"? Those material should include dictionary of terms, what waves mean, how to connect some activity in waves to brain ...
6
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1answer
189 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, ...
6
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1answer
192 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 ...
6
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0answers
59 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?
5
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2answers
155 views

How can surprise be labelled conscious when mismatch negativity shows that surprise takes place earlier than conscious states?

Mismatch negativity (MMN) is the brain response to violations of a rule. The MMN peaks at about 100–250 ms after change onset. If MMN occurs so early, before conscious perception, why is surprise ...
5
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2answers
546 views

Devices that detect when someone is falling asleep

I'm wondering what types of devices exist that can detect how close someone is to falling asleep. I have heard of several devices that may be able to do this, but I haven't been able to find very ...
5
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1answer
128 views

What tools are available for EEG analysis on the R platform?

I'm starting some EEG studies on attention, and would really like to use R for preprocessing (filtering/artifact rejection), visualization, and analysis, but I can find very little in the way of ...
5
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2answers
144 views

Are there useful applications for three channel consumer EEG?

I stumbled upon the consumer EEG Melon (at Kickstarter). It has three electrodes and is advertised as measuring how "focused" you are. In the FAQ it says: The Melon headband has three electrodes. ...
5
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1answer
103 views

Can tinnitus be measured with EEG or MEG?

Can tinnitus be measured with EEG or MEG (magnetoencephalography)? Is it visible in a power spectrum? In an ERP/ERF?
5
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0answers
48 views

How to compute auditory steady state responses?

Simple question: How does one usually go about computing an auditory steady state response (ASSR)? I have data where speech was amplitude modulated to a 40 Hz sine tone. There's 3.5 minutes of data; ...
4
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0answers
22 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 ...
3
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1answer
88 views

How to structure affective picture stimuli for an EEG study?

I want to design an EEG paradigm for passive affective picture viewing. Can I use a block design for three different emotions, where each block represent a particular emotion? Or would a better design ...
3
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1answer
49 views

How does the frequency of a visual stimulus affect the steady-state visually evoked potential?

I want to make a project for EEG signal processing, and in my research I found the concept of SSVEP, which means that if you have a stimulus with low frequency applied to the eye, the electrical ...
3
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1answer
124 views

What are new and exciting research areas or applications in systems neuroscience? [closed]

Like the title says, what are new and exciting research areas or applications in systems neuroscience? I know the question is a broad one, so let me narrow it down a bit: I will get my master's ...
3
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2answers
33 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 ...
2
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3answers
271 views

Getting started with EEG data

I want to get started with getting signals from EEG and learning on how I can read data. I have some programming skills, so designing a database and manipulating data with ruby (python seems also ...
2
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1answer
80 views

Is EEG brain-computer interface reliable?

I am a computer science student [assume I have very little knowledge of the biological part of EEG]. I recently came across the topic EEG and was pretty interested in it. As far as I know, we get an ...
2
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1answer
53 views

Can a person control their brain's electrical activity?

In a brain-computer interface paper, I found the following paragraph: Effective assessment of BCI performance requires two levels of evaluation: the user and the system. The user must control the ...
2
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1answer
80 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 ...
2
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1answer
40 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 ...
2
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1answer
43 views

Are recent affordable EEG devices any good?

I'm looking to do some research about flow and optimal experience with EEG. I don't have access to a lab and I was wondering if the new devices that are available to the public (i.e. Melon, Muse, ...
2
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1answer
78 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 ...
2
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1answer
46 views

Is there any file format standard for EEG data?

I have started to do some research on EEG analysis. One of the challenging things I have found is the variability on the formats for the EEG files. What do you do when you receive data your software ...
2
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1answer
43 views

Finding consciousness through EEG

I've read an article about the consciousness in vegetative patients. Adrian Owen is one of the neuroscientist making research on this field. The article published on "Le scienze" was about the usage ...
2
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1answer
16 views

What is the optimal combination of text and background color for EEG experiments?

Most studies that I know of use yellow text on blue background (though with different hues). This choice is mostly motivated by tradition ("We always did it like that. Never touch a running ...
2
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0answers
32 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 ...
2
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0answers
39 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 ...
1
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1answer
57 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 ...
1
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1answer
51 views

reading an EEG dataset using EEGLAB

When I'm reading the documentation of importing events in EEGLAB from a file here I have noticed that when we used a stimulus , we must know which time we will apply it , since in the dataset file , ...
1
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1answer
53 views

Record an eye blinking waveform signal from EEG signals

I want to Record an eye blinking waveform signal from EEG signals , but it need to make a quiscent periods of recording , So how to make this quiescent periods(i.e the signal has a zero amplitude at ...
0
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2answers
43 views

Knowledge in what fields is necessary to develop an EEG brain-computer interface?

I am a computer science student, and as part of my project, I would like to develop a system that changes the TV channel, increases its volume, etc. by just the thought of it. My primary investigation ...
0
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1answer
31 views

Neural robots vs conventional robots

My friend is working on a robot that can be mind controlled. He basically wears a headset, and that headset translate brain signal into control signal to move a robot. ...
0
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1answer
96 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 ...
0
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0answers
15 views

Is there an inexpensive, consumer version of this Fp1 Reading dry EEG?

Is there any, publicly available system like the one used at Keio Univeristy, that cost less than $1000? ...
0
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0answers
27 views

What is the relation between general and linear prediction in espicifice and Evoked Potentials signal behaviour?

Prony's Method based on Linear Predictione , which is used to model an Evoked Potentials signal , my question is what is the relation between prediction in general , and linear prediction in ...
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21 views

trouble understanding this EEG waveform based on audio (sine noise)

I've acquired an audio-based EEG waveform using an EEG headset and here is the image below. The waveform is an average of 10 trials. Each lasting 20 seconds. sry i can't seem to make the link work, ...