BIOPAC® Systems, Inc. Logo

211 – EEG Analysis With AcqKnowledge

The AcqKnowledge software will record EEG data, filter the data into the specific bandwidths for Alpha, Theta, Beta and Delta, and display the results on-line. Often, researchers also need to quantify the activity in each band.

This Application Note provides a useful technique for analyzing EEG signals and quantifying the activity in each band. This note will explain how to:

  1. Integrate the alpha wave EEG data to get a better view of alpha wave activity.
  2. Identify where the integrated data crosses certain threshold values.
  3. Measure the amount of time that was spent in a heightened alpha state and count the number of times that the subject entered the state.

This note describes the procedure for working off-line with a saved data file, but you can also perform these functions online (as noted at each step).

 
The examples in this note use a raw EEG signal taken from a human subject and filtered to show the Alpha wave activity.

 

Associated Applications

Spotlight On
Ventilator Validation Kit

Ventilator Validation and Test Equipment

The Ventilator Validation Kit supports new prototype development, existing design validation for production testing, mobile field testing and verification, and other uses where accurate pressure and flow measurements are critical. The Ventilator Validation Kit provides ventilator manufacturers and prototype developers with a complete solution for validating new medical/hospital-grade ventilator products intended for human use. The VVK100-SYS includes […]

View All
Latest News

New Citations | Logic Games and Meditation: the Key to Unlocking our Brains?

Studying Cognitive Activity with fNIR! The age-old game of chess is known as a thinking man’s game, where foresight, critical thinking, and strategy are required to become a good chess player, and the terms “genius” or “brilliance” are bestowed upon the chess masters of the world. As such, chess is an excellent cognitive tool to […]

Electrocardiography Guide Now Available

BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]

Read All
Request a Demonstration
Request a Demonstration