Jan 25, 2006
A time-series prediction approach for feature extraction in a brain-computer interface
A time-series prediction approach for feature extraction in a brain-computer interface.
IEEE Trans Neural Syst Rehabil Eng. 2005 Dec;13(4):461-7
Authors: Coyle D, Prasad G, McGinnity TM
This paper presents a feature extraction procedure (FEP) for a brain-computer interface (BCI) application where features are extracted from the electroencephalogram (EEG) recorded from subjects performing right and left motor imagery. Two neural networks (NNs) are trained to perform one-step-ahead predictions for the EEG time-series data, where one NN is trained on right motor imagery and the other on left motor imagery. Features are derived from the power (mean squared) of the prediction error or the power of the predicted signals. All features are calculated from a window through which all predicted signals pass. Separability of features is achieved due to the morphological differences of the EEG signals and each NNs specialization to the type of data on which it is trained. Linear discriminant analysis (LDA) is used for classification. This FEP is tested on three subjects off-line and classification accuracy (CA) rates range between 88% and 98%. The approach compares favorably to a well-known adaptive autoregressive (AAR) FEP and also a linear AAR model based prediction approach.
20:40 Posted in Brain-computer interface | Permalink | Comments (0) | Tags: Positive Technology
Course in computational neuroscience
Via Neuro-IT mailing list
August 7th September 1st 2006, Arcachon, France
The course has two complementary parts. Mornings are devoted to lectures given by distinguished international faculty on topics across the breadth of experimental and computational neuroscience. During the rest of the day, students are given practical training in the art and practice of neural modelling, largely through the medium of their individual choice of model systems.
The first week of the course introduces students to essential neurobiological concepts and to the most important techniques in modelling single cells, networks and neural systems. Students learn how to solve their research problems using software packages such as MATLAB, NEST, NEURON, XPP, etc. During the following three weeks the lectures cover specific brain areas and functions. Topics range from modelling single cells and subcellular processes through the simulation of simple circuits, large neuronal networks and system level models of the brain. The course ends with project presentations by the students.
A maximum of 30 students will be accepted. There will be a minimum fee of EUR 500 per student (depending on the courses funding) covering costs for lodging, meals and other course expenses. Also depending on funding, there will be a limited number of tuition fee waivers and travel stipends available for students who need financial help for attending the course. We specifically encourage applications from researchers who work in the developing world. These students will be selected following the normal submission procedure.
Applications, including a description of the target project must be submitted electronically (see below) and should be accompanied by the names and email details of two referees who have agreed to furnish references. Applications will be assessed by a committee, with selection being based on the following criteria: the scientific quality of the candidate (CV) and of the project, the recommendation letters, and evidence that the course affords substantial.
More information and application forms can be obtained from here
11:35 Posted in Positive Technology events | Permalink | Comments (0) | Tags: Positive Technology
International Symposium on Artificial Brain with Emotion and Learning
via Neuro-IT mailing list
ISABEL 2006
Bio-Inspired Models and Hardware for Brain-like Intelligent Functions
August 24-25, 2006, Seoul, Korea
Although artificial neural networks are based on information processing mechanisms in our brain, there still exists a big gap between the biological neural networks and artificial neural networks. The more intelligence we would like to incorporate into artificial intelligent systems, the more biologically-inspired models and hardware are required. Fortunately the cognitive neuroscience has been developed enormously during the last decade, and engineers now have more to learn from the science.
In this symposium we will discuss what engineers want to learn from the science and how the scientists may be able to provide the knowledge.
Then, mathematical models will be presented with more biological plausibility.
The hardware and system implementation will also be reported with the performance comparison with conventional methods for real-world complex applications. A panel will be organized for the future research directions at the end.
This symposium will promote synergetic interaction among cognitive neuroscientists, neural networks and robotics engineers, and result in more biologically-plausible mathematical models and hardware systems with more human-like intelligent performance in real-world applications.
Topics include, but are not limited to:
. Models of auditory pathway
. Models of visual pathway
. Models of cognition, learning, and inference
. Models of attention, emotion, and consciousness
. Models of autonomous behavior
. Hardware implementation of bio-inspired models
. Engineering applications of bio-inspired models
Visit the conference website for detailed information
11:32 Posted in Positive Technology events | Permalink | Comments (0) | Tags: Positive Technology




