“The sensory-triggered activity of a neuron is typically characterized in terms of a tuning curve, which describes the neuron’s average response as a function of a parameter that characterizes a physical stimulus. What determines the shapes of tuning curves in a neuronal population?”
“Neuromotor prostheses (NMPs) aim to replace or restore lost motor functions in paralysed humans by routeing movement-related signals from the brain, around damaged parts of the nervous system, to external effectors. To translate preclinical results from intact animals to a clinically useful NMP, movement signals must persist in cortex after spinal cord injury and be engaged by movement intent when sensory inputs and limb movement are long absent.”
Nature 442, 164-171 (13 July 2006) | doi:10.1038/nature04970; Received 22 March 2006; Accepted 6 June 2006
“Non-stationarities are ubiquitous in EEG signals. They are especially apparent in the use of EEG-based brain-computer interfaces (BCIs): (a) in the differences between the initial calibration measurement and the online operation of a BCI, or (b) caused by changes in the subject’s brain processes during an experiment (e.g. due to fatigue, change of task involvement, etc).”
Neurophysiology is a study of neurons, nerves, and nervous systems, what they do and how they do it. A neuron is a cell that is specialized in two of the fundamental properties of living matter, namely excitability and conductivity. Excitability is the ability to respond to changes in the environment.
By Michael D. Mann, Ph.D.,
from the Internet version of his textbook “The Nervous System In Action”.
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