BIOPAC® Systems, Inc. Logo

Spectral Analysis

Use AcqKnowledge to obtain the power spectrum of the EEG. The power spectrum indicates the power of each frequency component present in the source time domain waveform. Perform power spectral analysis on EEG data from different leads and overlap the results. The FFT in AcqKnowledge allows frequency representation using linear or logarithmic scaling.

Use the automated analysis routine to divide the EEG signals into fixed-width time epochs. For each individual time epoch, the Power Spectral Density function of AcqKnowledge is used to estimate the power spectrum of that epoch using a Welch periodogram estimation method. From this PSD the following measures are extracted for each epoch: Mean Power, Median Frequency, Mean Frequency, Spectral Edge, Peak Frequency.

Details

This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.

Videos

BIOPAC Research Solutions | EEG

Integrating BIOPAC Research Systems | Data Acquisition & Analysis

Support

Application Notes

Knowledge Base

Hardware Packages   |   Spectral Analysis

Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.

Wired

Wireless

MRI

Animal

Spotlight On

Eye Tracking Glasses ETV

The ETVision (ETV) wearable unit resembles an eyeglasses frame that can be worn by itself or over the participant’s prescription eyeglasses. It contains miniature “eye cameras” that view each eye and a “scene camera” that views the scene in front of the participant, and a microphone. An optional visor can be mounted to the front […]

View All
Latest News

New Eye Tracking Glasses Bring Real-world Data to Academic Research

BIOPAC combines eye tracking with mobile data logging and physiology data collection to run experiments in the lab or in the real world BIOPAC Systems, Inc. is pleased to announce new eye tracking integration for researchers who conduct experiments from mobile participants in diverse locations. ETVision (EYE-ETV) eye tracking glasses now integrate with BIOPAC wireless systems and software, […]

New Citations | Utilizing VR and AcqKnowledge to Reduce Stress

 Impact of Green Space on Stress Reduction Research studies show that the increased exposure of urbanization, traffic noise and pollution has been correlated with increasing levels of stress. However, do greener, more natural environments provide the opposite effect, restoring human well-being and contributing in stress reduction? Researchers compared user experiences in Virtual Reality (VR) scenes […]

Read All
Request a Demonstration
Request a Demonstration