Category Archives: Brain-Computer Interface (BCI and BMI)

Brain waves, Sharp-wave Ripples, SWRs from low intensity electrical stimulation

Some brain waves look like Sharp-wave Ripples, these are sometimes called SWR’s.

SWRs can be evoked by low intensity electrical stimulation, and at lower intensities than those needed to evoke detectable population spikes. In addition, evoked SWRs show large variability in amplitude, similar to that of spontaneous events.  See more at:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5862867/

Hippocampal sharp-wave ripples (SPW-Rs) support consolidation of recently acquired episodic memories and planning future actions by generating ordered neuronal sequences of previous or future experiences.  See more at:   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6310484/

Interface Technology for the Brain

Today people are developing technology to interface directly with the brain. One of the more safe ones (besides just a keyboard and mouse) is EEG (ElectroEncephaloGram). With EEG electrical probes are attached to the head on the surface. These connections are wired to a pre-amplifier or instrument amplifier, digitized and feed into a PC or Mac computer for analysis.

Several very low frequency brain waves have been discovered. The waves are actually radio waves (electro-magnetic) but the magnetic component is so small that just the electrical component is picked up.

Here is a few great articles:
Brain Computer Interfaces
Interface Tech for the Brain
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EEG, BMI — Imaginary Movements

EEG Classification of Different Imaginary Movements within the Same Limb…Great article highliting the importance of goal-oriented imaginary in the bio-feedback loop.

Fully Online Multicommand Brain-Computer Interface with Visual Neurofeedback Using SSVEP Paradigm

Neural coding of basic reward terms of animal learning theory

Brain-computer interfaces: a powerful tool for scientific inquiry

Brain Waves

While our brain cells work together, groups of them produce very tiny electrical impulses that facilitate processes such as muscle control, imagination, thought, memory, consciousness, and emotional feelings. Electroencephalography (EEG), can detect these impulses as tiny currents. The weak electrical signals, when amplified and input into a computer for processing has led to brain-computer interface (BCI) research.

Little Spokane River, reflections

Little Spokane River, reflections

Books Helping Me in My latest Research Project:

Books Helping Me in My latest Research Project:

  • How to Create a Mind by Ray Kurzweil
  • Elon Musk by Ashlee Vance
  • Spikes – exploring the Neural Codes
  • A Practical Guide to Brain-Computer Interfacing with BCI2000
  • The ARRL Handbook for Radio Communications (Ham Radio)
  • Detection of Signals in Noise by McDonough and Whalen
  • Some Links:
  • Signal Hound Spectrum Analyser
  • Gqrx – software defined radio powered by GNU-Radio
  • software defined radio news and projects
  • Radio Astronomy SDR Receivers
  • brain–computer interface (BCI)
  • Recording the entire nervous system in real time will unlock secrets of the brain
  • Brain Waves and Beta Buzz: The Wild Story of Neural Oscillations
  • Zero Span Mode For Pulsed Signal Analysis