Decoding Imagined Speech and Computer Control using Brain Waves

Using Brain-Computer Interface to understand and decode neural processes associated with imagined speech

Imagined speech plays a central role in human consciousness, and its understanding is of great importance for the construction of a speech-like Brain-Computer Interface (BCI). Such BCIs would considerably benefit patients suffering from severe conditions where they are unable to verbally communicate, despite being fully conscious. The goal of this study was to build a non-invasive closed-loop B...

Simulation Experiment of BCI Based on Imagined Speech EEG Decoding

Brain Computer Interface (BCI) can help patients of neuromuscular diseases restore parts of the movement and communication abilities that they have lost. Most of BCIs rely on mapping brain activities to device instructions, but limited number of brain activities decides the limited abilities of BCIs. To deal with the problem of limited ablility of BCI, this paper verified the feasibility of con...

Brain Computer Interface using Silent Speech for Speech Assistive Device

Control of a 2-DoF robotic arm using a P300-based brain-computer interface

In this study, a novel control algorithm, based on a P300-based brain-computer interface (BCI) is fully developed to control a 2-DoF robotic arm. Eight subjects including 5 men and 3 women perform a 2-dimensional target tracking in a simulated environment. Their EEG (Electroencephalography) signals from visual cortex are recorded and P300 components are extracted and evaluated to perform a real...

Artificial speech synthesizer control by brain-computer interface

We developed and tested a brain-computer interface for control of an artificial speech synthesizer by an individual with near complete paralysis. This neural prosthesis for speech restoration is currently capable of predicting vowel formant frequencies based on neural activity recorded from an intracortical microelectrode implanted in the left hemisphere speech motor cortex. Using instantaneous...