BIOPAC® Systems, Inc. Logo

EEG frequency bands

AcqKnowledge includes digital filters that allow you to filter a raw EEG into the following frequency bands:

Delta 0.5-4Hz

Theta 4-8Hz

Alpha 8-13Hz

Beta 13-30Hz

Gamma 36-90Hz (in some older versions the upper frequency is 44 Hz)

The filters may be selected and then modified for different frequency bands if desired.

Online procedure

When you start to record data you will see additional channels that contain band pass filtered versions of the raw EEG data.

Offline procedure

AcqKnowledge version 3.9.1 and above for Macintosh and version 4.0 and above for Windows fully automate the offline procedure for creating these additional channels.  Choose “Analysis > Electroencephalography > Derive EEG Frequency Bands” and follow the on-screen prompts.

Page last modified 24Dec2014

Associated Applications

Spotlight On
Buy MP41 with BSL

Practical Lab Kit with BSL 4 & MP41

BSL Home enables students to safely conduct hands-on physiology labs wherever they are! Purchase this complete lab solution to preserve practical lab experience! Includes MP41 Unit+Lead Set with BSL Home software, EL503 electrodes, WRAP1 self-adhering wrap for EEG lessons, and disposable 9 V battery. For instructors—BSL Home makes it easy for instructors to continue running practical […]

View All
Latest News

New Citations | Keeping Students Attentive in an Online Setting & More!

BIOPAC provides software and hardware that allows research teams to record and analyze numerous body signals for physiological experimentation. Here are a few notable studies using BIOPAC equipment for ECG, EDA, and Respiration data. What Keeps Students More Engaged? The question has been brought to the forefront during COVID, what variations of online learning keep students more engaged? […]

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