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
MR Safe airflow interface

Airflow Subject Interface for MRI

The AFT35-MRI is a low profile mouthpiece and non-rebreathing T-valve assembly specifically designed to fit inside an fMRI head coil.* Use the AFT35-MRI to perform the following airflow and lung volume tests: End Tidal CO2 VO2 max Breath-by-breath Air Flow Breath-by-breath Volume Metabolic Studies The assembly includes a Luer lock port for easy interface to […]

View All
Latest News

BIOPAC Ranked #1 for Physiology Experiments by HAPS Members

The Human Anatomy & Physiology Society (HAPS) found that BIOPAC’s Student Lab System (BSL) and AcqKnowledge software were the number one ranked data acquisition and analysis systems for physiology experiments performed in introductory A&P labs. According to HAPS surveys conducted in 2013 and 2016, BIOPAC products are used and preferred by members in more labs than […]

Integrating Eye Tracking Data with Neuromarketing Parameters

Hardware and software packages from BIOPAC allow commercial consumer marketing teams to easily combine precise eye tracking data with physiological data recording. Here are a few notable studies recording physiology with eye tracking data: Predicting Advertising Success: While neurophysiological methods have become increasingly popular to better understand marketing phenomena among academics and practitioners, the success of […]

Read All
Request a Demonstration
Request a Demonstration