Ambulatory physiologic monitoring system supporting EMA with self-administered visual evoked potential recording at randomized intervals

Roger M. Ellingson, Barry Oken

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

This paper provides an overview of an ambulatory 24-hour physiologic recording system supporting ecological momentary assessments (EMAs) which include visual evoked potentials (VEPs) in the subject's normal living environment. The PDA-based system's EMA methods include oral recording, questionnaire, and reaction-time-type attention testing. This report focuses on the system's unique capability of subject-administered VEP testing in the remote environment. Results reported include single-subject VEP waveforms recorded in the subject's home during the evening portion of a 24 hour period at scheduled times the subject was unaware of in advance. The VEP testing paradigm was a 100 trial, Go/NoGo type test. The visual stimuli were presented on the handheld PDA device with wireless stimulus marker trigger information being transmitted to the ambulatory EEG recording unit via a Bluetooth interface. Post-acquisition editing and analysis results demonstrate reliable ambulatory VEPs can be obtained. The system implementation is a further extension of our work investigating the identification of stress-related physiologic marker information in a primary caregiver's home environment. The demonstrated EMA-based VEP recording capabilities added to our previously reported 24-hour ambulatory data collection platform (CAMAS) open the door to new opportunities supplementing studies in fields such as ambulatory psychophysiology and cognitive-neuroscience.

Original languageEnglish (US)
Title of host publication2011 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2011 - Proceedings
Pages119-122
Number of pages4
DOIs
StatePublished - Aug 25 2011
Event2011 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2011 - Binjiang, Hangzhou, China
Duration: May 10 2011May 12 2011

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
ISSN (Print)1091-5281

Other

Other2011 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2011
CountryChina
CityBinjiang, Hangzhou
Period5/10/115/12/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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