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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102 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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71 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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57 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 ...
5
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0answers
50 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
18 views

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 ...
4
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27 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 ...
3
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0answers
50 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 ...
3
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0answers
19 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 ...
3
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48 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 ...
3
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0answers
41 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 ...
3
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46 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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56 views

Isolating the desired event in EEG signals

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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17 views

Accuracy of methods for detection of dementia in EEG

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 ...