An expert analysis service for sleep and wake EEG data

1

A support for all steps and aspects of experimental studies, from the design phase to the publications

• Definition of the study protocol
• Expertise of the technical quality of the EEF data: sampling frequency, bit depth, noise of the environment, of the recording device
• Advice on how to fix the sensors in order to improve the technical quality of the data
• Long-time monitoring of the data quality during the whole duration of the study in order to ensure the continuity and homogeneity of the data
• Support for extracting and exploiting the analysis results

2

A suite of preprocessing and analysis modules dedicated to wake and sleep EEG

• EEG single channel and multi channels analyses
• Automated sleep staging : ASEEGA algorithm
• Automated staging of drowsiness : MEEGAWAKE algorithm
• Automated analysis of Karolinska Drowsiness Tests (KDT)
• Spectral analysis
• Spindle detection and analysis
• Sleep parameters : time in different sleep stages, latencies, cycles…
• Artifact localization

3

Other activities
are possible

• qualification of the recording situation
• qualification of the recording environment
• choice of the recording system most adequate to the study constraints

Standard PSG data: flexibility of possible configurations

• single channel: staging + all analyses
• multi channel: staging (on Cz – Pz or C4 – O2) + all analyses (spectral analysis, sleep microstructures) on part or all of available data
• no staging but all analyses (spectral analysis, sleep microstructures) on part or all available data

Possible recording on limited montage: Cz – Pz + Ground electrode

• The hook up time is dramatically reduced
• Equipment cheaper than PSG systems can be user: polygraphy systems, miniaturized EEG systems
• Enables out-of-the lab studies, at home, in real-life environment