Why We Need Raw Accelerometer Data?
Most of the fitness and sporting gadgets with accelerometer (G-sensor) built-in can give you nice...
How to Apply Electrodes With Good Skin Contact?
Both dry electrodes and gel electrodes are commonly used for EEG, ECG, EMG, SCR measurements....
How Does Bio-Feedback Work?
Human is a marvelously adaptive creature, and many of our capabilities remain hidden and not...
How to read motion sensor (accelerometer) data?
Low cost motion sensors usually deploy 3-dimensional (3D) accelerometers to track the motion and activities...
How to read SCR signal?
Skin Conductance Response (SCR) is also called Galvanic Skin Response (GSR). The SCR increases whenever...
How to Monitor Coherence States and Breathing Exercise Using ECG/HRV?
Breathing is the only bodily function that is both involuntary (i.e. self regulated) and voluntary...
How to read ECG signal?
ECG (also called EKG) signal measures the electrical control signals from the sympathetic and para-sympathetic...
How to Monitor Sleep Stages?
Sleeping is the most essential and longest duration human activity, yet we know very little...
How to read EEG signal?
Basics of Brain Wave Our brain contains huge number of individual cells called neurons. Neurons...
How to wear bio-sensors?
Top of forehead: for sleep, meditation, head posture and activity, etc. Side of forehead: for...