Types of neural interfacing
Working of the types
The goal of neural interface research is to create links between
the nervous system and the outside world.
This can be done either by stimulating or by recording from
It’s ultimate purpose is to assist people with disabilities of
Research to develop systems that can help restore
sensory function, communication, and control to
This is turning to be new branch of experimental
neuroscience, variously named brain-machine
interfaces (BMIs), brain-computer interfaces (BCIs).
Feature extraction Translation
A monkey operating an robotic
arm using an neural interface
Recording of a cat’s vision using
a neural interface device.
A man with acquired
blindness, being interviewed
about his vision BCI.
An basic illustration of brain
TYPES OF BCI’S
Invasive BCI :are those which are implantable inside the human
brain. They are of two types
Partial invasive : Partially invasive BCI devices are implanted
inside the skull but rest outside the brain rather than within the
Full invasive : are those BCI devices which are completely
integrated in the grey matter of the brain.
Non invasive: are those which are not implantable but it is
it is not harmful and is completely safe.
not very accurate compared to invasive because the skull
blocks the signal
brain can be
Can be used
Can be used
by using BCI.
There are basically three methods for implementing neural interfacing
They are as follows:
• P300 detection: The P300 (P3) wave is an event related
potential (ERP) component which deals with decision making.
• it basically deals with physical attributes of a stimulus. And a person’s
reaction to it.
EEG rhythm: The EEG rhythm is believed to reflect an
underlying execution/observation matching system.
consists of two types:
• α rhythm deals with the visual cortex
• µ rhythm deals with motor and sensory cortex
Certainly the applications for BCI devices discussed here are long reach
and BCI device are not yet powerful enough to perform various tasks.
Various researches are been deployed under this technology. If it’s
successful it can be a revolutionized technology.
How its used in various applications.
Helpful for physically disabled people.
Invasive devices may have risk factor to deal with.
Non invasive are easily affected by various noises.
Patients should be trained how to think and should go through physical
The Neural Interface Program by Dr.Kip Ludwig,
university of neurology.
The Science Of Neural Interface Systems by Nicholas
G, university of Chicago.
Multi – Command Brain-Computer Interface Based
On Silicon Chips by Shang kai G.
Full Data Rate Direct Neural Interface by Boris
Murmann and Teressa H. Meng, Fellow IEEE