Where does EEG come from?

The EEG consists of the summed electrical activities of populations of neurons, with a modest contribution from glial cells. The neurons are excitable cells with characteristic intrinsic electrical properties, and their activity produces electrical and magnetic fields. Electroencephalography measures the electrical fields that reach the surface of the scalp and are produced by the joint […]

Trends in tDCS at SfN 2014

This year at SfN we had 20 posters and 2 nano-symposia featuring tDCS in the title from a similar number of labs. On the face of it this is very good for the field that so many labs are exploring the technology but I think it’s interesting that only 3 directly address the parameters of […]

10% of the brain myth … discredited

There are some urban legends, myths, memes, lies or whatever you want to call it … that are so much given for granted by certain people that it really amazes me. One of them is the so called 10% of the brain myth: On average humans only use 10% of their brain. Anothe version of […]

How the visual system manages binocular rivalry

The visual system is a complex organization that helps us behave successfully in a world full of stimuli. The visual system is unable to measure the properties that define the physical world. What we see is just our subjective perception of the world. Consequently, we can say that we don’t see the world the way it […]

Biological Psychiatry

  Today I would like to relate Machine Learning to different concepts like biological psychiatry, stratified medicine, or the “subjectivity gap between neuroscience research and the clinical reality for patients with mental disorders”. Behind all these concepts there is a redefinition of the diagnostic process, which should incorporate more and more objective data. Although this […]

Designing Games for ADHD Neurofeedback Training

ADHD neurofeedback training aims to present impulsivity and hyperactivity features measured in the brain activity in real time to a child suffering from Attention Deficit Hyperactivity Disorder (ADHD) for him/her to learn how to self-regulate them. As was discussed in previous posts this technique has turned out to be a good complement to medication inducing […]

Synchronizing your EEG recordings

So you’ve got tons of mega bytes of EEG data from a big recording campaign with several volunteers. You persuaded them to wear your EEG recording device for 40 minutes, performing several mental tasks and receiving all types of external stimuli. You are now ready to process the data and confirm your breakthrough hypothesis. Well, […]

Face detection libraries: A qualitative evaluation

Neurokai’s services offer different solutions for industrial and academic researchers. Our Experience Lab service focuses on providing a custom solution for emotion recognition based on a multimodal system (EEG, ECG, GSR and facial). In order to develop our vision-based emotion recognition system, integrated within the multimodal one, we analysed several libraries for face detection. The […]