search for: eeg

...----------------------------------- Teneis que instalar los paquete: LCFdata LMERConvenienceFunctions lme4 http://cran.r-project.org/web/packages/LMERConvenienceFunctions/LMERConvenienceFunctions.pdf if(try(require(LCFdata,quietly=TRUE))){ ### Load and format data require(LCFdata) data(eeg) # restrict to electrode Fz and 80--180 ms window eeg <- eeg[eeg$Time >= 80 & eeg$Time <= 180, ] eeg <- eeg[, c("Subject", "Item", "Time", "Fz", "FreqB", "LengthB", "WMC")] # mean center F...

Dear R People: I have a data set with EEG data. There are 128 measurements per second for 16 locations. What is the best way to handle these series, please? Thanks, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess@gmail.com [[alternative...

Hi everybody, I'm fairly new to survival analysis with R and have some questions how to apply and interpret the coxph and related functions: I have time-dependent covariates with several measurements per subject with constant delta t. The covariates change in each time step. I fitted the following model: fit <- coxph(Surv(start, stop, event) ~ ratePO + rateC + BLamp + BLP80 +

I was just playing around with the R-streams package, reading in some data from an old experiment we did here, and was again amazed by the flexibility of the R environment. The eaze with wich I was able to generate simple plots of my EEG data made me wonder if someone tried to implement an ERP package. For the non-cognitive scientists ou there: EEG is electrical activity measured from the scalp (usually multi-lead) that is used in psychophysiological experiments to infer cortical activation. In a typical experiment this data can b...

Hello everyone, I've conducted a Type III repeated-measures ANOVA using Anova() from the car package, based on the suggestions at http://blog.gribblelab.org/2009/03/09/repeated-measures-anova-using-r/(option 3) and http://languagescience.umd.edu/wiki/EEG#ERP_ANOVA_in_R. My ANOVA has two factors: Condition (3 levels) and Region (6 levels) and their interaction. Below is code to run the Anova and get the model object (the data are at https://docs.google.com/open?id=0B6-m45Jvl3ZmOVFTYVpZYV9sUUk). data <- as.matrix( read.table( file="EEGprimi...

...Biometrics Research department at the Merck Research Laboratories has an open position to be located in Rahway, New Jersey, USA: This position will be responsible for imaging and bio-signal biomarkers projects including analysis of preclinical, early clinical, and experimental medicine imaging and EEG data. Responsibilities include all phases of data analysis from processing of raw imaging and EEG data to derivation of endpoints. Part of the responsibilities is development and implementation of novel statistical methods and software for analysis of imaging and bio-signal data. This position wil...

Hello everybody, I am wondering if it is possible to create a gui to plot a time series that is very big, it's an EEG signal of 20mins. What I would like to do is plot the first 5mins, then have a button on the gui that plots the next 5mins when pushed. Is it possible? Thanks in advance ! Gael.

Hello everyone, This is my first time posting to the list, thanks in advance. I am calculating the smoothed periodogram for the residuals of an AR model that I fit to EEG data. The autocorrelation plot of the residuals shows the series is now approximately white (i.e. ACF = 1 at lag 0, and close to 0 for all other lags). I would like to show that the spectrum of the series is also approximately white. When I calculate the periodogram using spec.pgram, what I get in...

...n.connection(con, "r") : kann nicht mit 'cran.r-project.org' auf Port 80 verbinden -------------------- What should I do? Thanks for helping. L. Molinari --------------------------------------------------------------------- Dr. Luciano Molinari Abt. Entwicklungspaediatrie und EEG Kinderspital Z?rich Steinwiesstr.75 CH-8032 Z?rich luciano.molinari at kispi.uzh.ch Tel. (004144) 266 79 25 Fax (004144) 266 71 71 Men fight and lose the battle, and the thing that they fought for comes about in spite of their defeat, and then it turns out not to be what they meant, and othe...

Dear list members, I have been using filled.contour in order to plot EEG data. For the colors, I used a conventional ramp from blue to red (blue - green - yellow - red), and 100 color levels to make the plot looking smooth: (...) color.palette = colorRampPalette(c('blue','green', 'yellow','red'), space='rgb'), nlevels = 100 (.....

...emplae using Ward method for clustering ... I would also be interested in using method of mutual neighbors to identify the clusters ... is it possible using hclust ? Any help would be really appreciated, Best regards ... Christophe *************************** Christophe Grova, PhD PostDoc - EEG department Montreal Neurological Institute, McGill University 3801 University Street, Montreal, Quebec, Canada, H3A 2B4 email : christophe.grova@mail.mcgill.ca tel : (514) 398 2184 fax : (514) 398 8106 web: http://idm.univ-rennes1.fr/users/grova *************************** [[alternative HTML ver...

I think I might be mad to include that many mailing lists in this patchset... As I explained in [PATCH 1/5], fstests covers more and more fs testing thing, so we always get help from fs specific mailing list, due to they learn about their features and bugs more. Besides that, some folks help to review patches (relevant with them) more often. So I'd like to bring in the similar way of

...alue is in bin x) and summing across the columns to get p(value is in y), and just taking the value for the density at x,y to get the joint probability p(x,y), then just applying formulas for mutual information…. I know it’s kludgy… does anyone have any idea as to what I’ve done wrong? The data is EEG sampled at 128hz from the left hemisphere (C3) and right hemisphere of the brain during neurofeedback sessions and enters via a bivariate time series to datin, and lmax is the maximum lag to measure the mutual information at. I hope to use it to set up optimal bivariate embeddings but also to measu...

I have a time series of data from an electroencephalogram (EEG). I wish to filter the data to get rid of 50Hz mains 'hum'. I have 'designed' a combination bandpass and notch filter using a web- site. The site returns the filter in "ANSI C" source code. It is:- /* Digital filter designed by mkfilter/mkshape/gencode A.J. Fisher Co...

...or change strangely ... whereas when I display the same figure in R or when I saved it in using postscript() function there is no problem. Any idea about the behavior of the colors when using xfig ?? Thanks in advance Christophe Grova *************************** Christophe Grova, PhD PostDoc - EEG department Montreal Neurological Institute, McGill University 3801 University Street, Montreal, Quebec, Canada, H3A 2B4 email : christophe.grova@mail.mcgill.ca tel : (514) 398 2184 fax : (514) 398 8106 web: http://idm.univ-rennes1.fr/users/grova *************************** [[alternative HTML vers...

...in bio-signal analysis this includes signal processing, time-series analysis, and advanced pattern recognition. These positions will provide statistical, mathematical, and software development support to Merck scientists. Merck has its own facilities for CT, PET, MRI, and ultrasound imaging as well EEG labs and numerous telemetry modalities. We are looking for a Ph.D. in Statistics, Electrical/Computer or Biomedical Engineering, Computer Science, Applied Mathematics, or Physics. Advanced computer programming skills (including, but not limited to Matlab, C/C++, Visual Basic), and good communicat...

...signal processing, image processing, pattern recognition, machine learning, or bioinformatics are preferred. The position will involve providing statistical, mathematical, and software development support for one or more of the following areas: medical imaging, biological signal analysis including EEG , MS proteomics, and computational chemistry. We are looking for a Ph.D. with a background and/or experience in at least one of the following fields: Statistics, Electrical/Computer or Biomedical Engineering, Computer Science, Applied Mathematics, or Physics. Advanced computer programming skills...

Hello I am using glmmBUGS to fit a multilevel model. Treatments are nested in Course are nested in Patients. The predicted variable in total EEG duration. The predictors are: at the observation level : Medication dose at the Course level: Weight in KG and Age at the Patient level: Weight in KG and Age I am trying to fit a multilevel model as in lmer, but in BUGS. Here is an example of the model I want to run: Linear mixed model fit by RE...

Hi i'm trying to have the mystical EEG cap running on Snow Leopard, i get this: fixme:wgl:X11DRV_wglGetPixelFormatAttribivARB unsupported 2008 WGL Attribute then the terminal doesn't resume to normal state... until ctrl-c i'm not a super guru any idea? Thanx A

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