Neural interfacing
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Transcript of Neural interfacing
NEURAL INTERFACING
OVER VIEW
Objective Scope Existing system Case studies Types of neural interfacing Working of the types Applications NIS methods Conclusion References
OBJECTIVE
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 neural tissue.
It’s ultimate purpose is to assist people with disabilities of neural function
SCOPE
Research to develop systems that can help restore sensory function, communication, and control to impaired humans.
This is turning to be new branch of experimental neuroscience, variously named brain-machine interfaces (BMIs), brain-computer interfaces (BCIs).
EXISTING SYSTEM
Signal acquisition Feature extraction Translation
Signal processing
BCI application
Digital signal
Commands
CASE STUDIES
A monkey operating an robotic arm using an neural interface device.
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 gate interface.
TYPES OF BCI’SNeural interface(BCI)
Invasive
Fully invasive
Partial invasive
Non invasive
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 grey matter.
Full invasive : are those BCI devices which are completely integrated in the grey matter of the brain.
WORKING OF INVASIVE
Non invasive: are those which are not implantable but it is easily wearable.
it is not harmful and is completely safe. not very accurate compared to invasive because the skull
blocks the signal
WORKING OF NON INVASIVE
APPLICATIONS Neural interfacing
Medical Gaming Manufacturing communication
Using BCI brain can be
the next console to
play games.
Can be used to assist
people with neural
disabilities.
Can be used as a
communicat-ion medium
by using BCI.
NIS METHODS There are basically three methods for implementing neural interfacing
systems.
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
CONCLUSION 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.
Advantages: How its used in various applications. Helpful for physically disabled people.
Disadvantages 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
therapy.
REFERENCES
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
THANK YOU!!!