The document discusses non-invasive brain-computer interfaces (BCI) designed for augmentative and alternative communication (AAC), highlighting their role in connecting the brain with external devices. It differentiates between unaided and aided AAC systems, explaining how BCIs utilize techniques like electroencephalography (EEG) to interpret brain signals for communication. The conclusion emphasizes the potential of BCIs to enhance independence and quality of life for individuals, while acknowledging limitations in signal processing.

1. NON-INVASIVE BRAIN COMPUTER
INTERFACE FOR AUGMENTATIVE AND
ALTERNATIVE COMMUNICATION
TITLE DEFINITION: BCI-BASED-AAC
NON-INVASIVE : Relating to a technique that does not
involve puncturing the skin or entering a body cavity.
AUGMENTATIVE: increasing or having the power to
increase especially in size or amount or degree

2. ABSTRACT
• Brain-computer interface is the study of neuro-
engineering to explore and show how the brain
can use external devices. In this presentation I
explain and review the rules and principles of this
human brain-computer communication. BCI
enhance the integration between human brain
and external devices and non-invasive neuro-
modulation process to improve mind-body
interaction to perform the interaction and
performance. Brain-computer interface is the
connection of external man-made devices with
the natural brain

3. INTRODUCTION
• The BCI means to provide the interface of
computer with physical brain. It is also called
brain machine interface (BMI) The The
Advanced Research Projects Agency (ARPA)
becomes interested in technologies that
develop a bionic application that
communicate between computer and human
brain. BCI use EEG and NEUROSKY MIND
WAVES

4. FLOW OF BCI

5. KEYWORDS
• Brain-computer interface (BCI); Brain-machine
interface (BMI);
• Electroencephalography (EEG); Motor imagery
(MI); Sensory motor rhythm (SMR)

6. TYPES OF BCI BASED AAC.
• Actually, BCI is helped with the following two
types of AAC.
• UNAIDED SYSTEM
• An unaided system is the process of body
thoughts and feeling that translate to other
environments. That means it includes gestures
body, facial expressions and signed languages.
• AIDED SYSTEM
• That includes the hardware type microelectrodes
and other devices like the BCI project.

7. HOW BCI WORKS
• MOTER-IMAGERY BCI
• Visual based BCI (event-related potentials and
steady-state visual evoked potentials)
• Motor-imagery based BCI means that a machine
that performed an action that are based some
movements of motor such as limbs. Some other
BCI system is like inactive BCI, reactive BCI and
affective BCI. All these BCI are used to control
devices and applications by inner movement of
user brain.

8. BCI’S FEATURE TRANSLATION AND
EFFECTOR
• By feature, the translation technique means that
what are the algorithms that translate the goal
of mind as an input variable into Machine
control commands for achieving the user’s
intent. Common this algorithm capture the intent
of the user form the brain and then convert them
into machine learning accurately and reliably. This
algorithm works spontaneously and encourages
and facilitates the user’s acquisition of better
control.

9. APPLICATIONS AND RESULTS

10. CONCLUSION AND REMARKS.
• BCI provide independence to individuals and
improve the quality of comfortable life. Basic
limitation of BCI system is signal process when
received from brain and prone to BCI system.
• Now a day BCI is mostly used non-invasively in
the environment. This process is used mental
and brain signals. Wearable sensors like BCI
electrodes are used for communications.

11. QUERY AND THANKS !