SPONTANEOUS BRAINWAVE IN HUMAN

AZRINA BINTI TARMUGI (KEE120007)NUR HARIZAH BINTI OMAR (KEE120043)MUHAMMAD AZRUL BIN KHOJISAN (KEE120023)ABDUL AZIZ BIN ABDULLAH (KEE120061)CHING HUA CHIAM (KEE110004)

INTRODUCTION5 different types of waves in

human brain: Gamma (27 Hz and up) Beta (12 Hz – 27 Hz) Alpha (8 Hz – 12 Hz) Theta (3 Hz – 8 Hz) Delta (0.2 Hz – 3 Hz)

Journal 4: Spontaneous neural activity during human slow wave sleep

Characteristic of Slow wave sleep (SWS) Slow oscillation (<1Hz) Emitted by membrane potential Large amplitude

Previous study:The slow wave activity (SWA) is

identified having the power density in the 0.75 – 4 frequency (homeostastic)

There are transient changes in brain activity during SWS.

Results:

Journal 5: TIMELESS BUILDINGS AND THE HUMAN BRAIN: The Effect of Spiritual Spaces on Human Brain Waves

Different places have an effect on brainwaves - analysed by measuring the brainwaves when respondent are located in several spots of the building

2 factor of brainwaves measurement : - Theta/Beta ratio, concentration state of mind or relaxed awareness - Alpha peak frequency, relaxation and calmness of mind

Alpha brainwaves related to alertness but in relaxed state.

Stimulate creative ideas Alpha state, right brain is most active Beta state, left brain is most active

Theta brainwaves are the waves before delta waves (deep sleep)

Theta brainwaves is emitted, the feel of deeply relaxed is induced

Increment of the Theta, lead to relaxed concentration and balance.

Theta/Beta used to calculate changes in EEG (hypertension disorder)

Journal 7predicting the Three Major Dimensions of the Learner’s Emotion from Brainwaves

3 dimensions of emotions:1. Pleasure2. Arousal3. Dominance

Values Along Each Dimension

Results

Pleasure: BetaArousal: Beta, Alpha, ThetaDominance: Beta

Journal 10Brain Fingerprinting An alternative for the current lie

detectorBrain fingerprinting revolves

more around emotion based physiological signals

A certain signal known as P300 given by subject exposed to familiar stimulus is analyzed

The subject is exposed to both related and unrelated probes with EEG is attached to the subject

Results

Advantage◦ More accurate than

the polygraph method

Disadvantage◦ The probes have to be

extremely specific to the crime in consideration

◦ Detects information but not intent

Journal 13Robot Application Of A Brain-Computer Interface to Staubli TX40 Robots – Early Stages

BCI enables people to manipulate or control machines by utilising their brainwaves instead of doing it manually.

Brainwaves that are produced and communicate them straight to the output device, bypassing the muscular system of the body.

This technology provide people who have disabilities, especially those with disabilities in terms of muscle movement, with an alternative that can help them in their daily life.

Early stage experiment, the technology was tested to see if the robot arm could carry an object and place it at a desired spot using brainwaves.

BCI detects and analyse the brainwaves that are obtained from the scalp of the human head Utilising a specialized cap prepared with electrodes while being interfaced with a software called BCI2000. The user focusses on a desired and chosen spot from the grid in the computer screen and when it flashes, a P300 signal is produced and emittedThis experiment was a success and the robot managed to function as how the user wanted it to.

ConclusionEvery person has a distinct and unique

brainwave pattern.The 5 different types of waves, (Gamma

waves, Beta waves, Alpha waves, Theta waves and Delta waves) are dominant at difference instances.

Brainwaves that are produced by the human brain are dependent on many different factors such as mental state, state of consciousness, conditions of health, conditions of surroundings as well as emotions and feelings.

Due to these properties of brainwaves, there are many applications that can be done and many new inventions and technology that can be created.