Affective image database?

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What issues arise when you have uneven number of trials per condition in fMRI studies?

Hi, I would like to trigger a conversation on the issues that arise, and perhaps false assumptions of what issues could arise, when you have different number of trials per condition in fMRI...

03 April 2016 3,877 5 View

How to import preprocessed+averaged EEG data into FieldTrip (FT raw data fields)?

Hi, I am trying to import EEG data that has been preprocessed and averaged in BrainVision Analyzer (dat files). I have a 2-second segment of data per condition per subject which corresponds to the...

02 March 2016 1,197 1 View

What is a Likelihood ratio test with 0 degree of freedom?

Would the results from a likelihood ratio test with 0 degree of freedom not be interpretable? From what I understand, by definition when the degrees of freedom = 0, chi-squared = 0 thus making the...

10 November 2015 7,743 12 View

How to deal with bad ex-Gaussian fit to RT distribution for only some conditions and some subjects?

I used R's retimes::timefit to fit an exponentially modified Gaussian distribution to reaction time data. It estimates ex-Gaussian parameters based on maximum likelihood and gives AIC/BIC/log...

09 October 2015 8,372 4 View

Any advice on dealing with eye tracking logging asynchrony?

Has anyone had problems of synchrony between an eye-tracking system and the stimulus delivery software sending log messages to the eye-tracking system logs? And if so, what the possible sources of...

09 October 2015 9,430 3 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View