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Since being founded by Dr. Jack Johnstone in 1999, Q-Metrx, Inc. has consistently provided high quality EEG-related services. Q-Metrx works closely with CROs and pharmaceutical companies, using neurophysiological methods to assess safety, tolerability and effects of new compounds on CNS activity, focusing on qEEG and ERP analysis, as well as sleep disorders.


Though we began with only three employees, Q-Metrx now retains a staff of administrative personnel, neuroscientists, registered EEG and Sleep technologists, as well as independent clinicians and consultants who regularly lend their expertise to the company. 


Q-Metrx, Inc. has extensive experience in assisting with all phases of clinical trials for drug development and proof-of-concept studies in both  healthy volunteers and sensitive patient populations. Q-Metrx has its own recording systems and sensors, as well as a complete qEEG analysis, interpretation, and reporting service.

Our staff  — including experienced registered EEG and PSG technologists, sleep specialists, Board Certified neurologists, and PhD trained experts in ERP/EEG analysis and neuroscience —  offers a complete solution for your CNS needs. We are experts in neurophysiological methods specifically designed to assess the safety, tolerability and effects of new compounds on CNS activity. 


  • EEGs: Screening, Safety and Long-term EEGs available with hyperventilation and photic stimulation (read by a Board Certified neurologist)

  • Quantitative EEGs (qEEGs)

  • Event-Related Potentials (ERPs): P50, P300, Mismatched Negativity (MMN), Pre-Pulse Inhibition (PPI), Faces, Filters and more


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  • Polysomnography (PSG)

  • Multiple Sleep Latency Test (MSLT)

  • Maintenance of Wakefulness Test (MWT)

  • Actiwatch

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  • Pupillometry

  • Eye Tracking

  • Experimental Design

  • Development and execution of Statistical Analysis Plans (SAPs)

  • Summary Reports

Read more about our services and collaborators in our brochure >



Jack Johnstone, PhD was the Founder, President and CEO of Q-Metrx, Inc. from 1999 – 2016.

Dr. Johnstone held a PhD in psychology from the University of California, San Francisco and his research interests included brain electrical activity, neuromodulation, clinical neuroscience, sleep disorders and cognitive development. He was an Associate Researcher at the Department of Psychology at the University of California, Los Angeles and had acted as a Principal Investigator on three studies. Dr. Johnstone held several Scientific and Professional Society Affiliations, had written a book chapter on the uses of qEEG, written several articles and presented at many scientific meetings, workshops and invited addresses.

In addition to his consulting work for CROs he had also consulted for Neurobehavioral Research, Inc. and numerous pharmaceutical companies.





Contact Us

Head Office

1577 East Chevy Chase Dr.

Suite 340

Glendale, CA 91206



Tel: 818-637-8200

Fax: 818-637-8206


To apply for a job with Q-Metrx, Inc., please send a cover letter together with your C.V. to: info@q-metrx.com


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