Physiological Indices of Mental Workload

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Abstract:

We are working on an enabling technology to facilitate the development of physiological indices of mental workload that could be used in high-performance aircraft. To date, we have designed and implemented the core components of a neural-network based algorithm for deriving continuous mental workload indices from continuous recordings of brain, scalp muscle, eye and heart electrical activity. We also have designed an experiment to test the adequacy of this algorithm, and have developed technologies to perform the experiment, including the following 1 designing a task battery to initially test the ability of the network algorithm to generalize across cognitive functions relevant to piloting aircraft and 2 implementing a software library that could be used to efficiently present the task stimuli using the same personal computer which also collects 32 channels of electrophysiological data. We have tested the integrated system and have found it capable of providing accurate timing of task stimuli, subject responses, and electrophysiological data.

Author(s):
Gevins, Alan S. ; Leong, Harrison M.
Author Organization(s):
SAM TECHNOLOGY INC SAN FRANCISCO CA
Descriptive Note:
Interim technical rept. 15 Dec 1991-14 Dec 1992
Pagination:
0007

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-TR-93-0086
Contract/Grant Number(s):
F49620-92-C-0013
Task Number(s):
SS
Project Number(s):
3005
Monitor Series:
TR-93-0086, AFOSR
 Subject Terms
Joint Capability Areas:
JCA_2.1_Planning and Direction; JCA_5_Command and Control; JCA_2.1.3_Task and Monitor Resources; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2.7_Experimentation; JCA_5.3_Planning
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*NEURAL NETS, *COGNITION, *PILOTS, *WORKLOAD, *PHYSIOLOGICAL EFFECTS, *ELECTROENCEPHALOGRAPHY, ALGORITHMS, FIGHTER AIRCRAFT, VISUAL PERCEPTION, MAN MACHINE SYSTEMS, RESPONSE(BIOLOGY), EYE MOVEMENTS, ELECTROPHYSIOLOGY, ELECTROCARDIOGRAPHY, RECEPTOR SITES(PHYSIOLOGY), SENSES(PHYSIOLOGY), HEART, LIBRARIES, ATTENTION, MUSCLES, STIMULI, COMPUTER APPLICATIONS, MEMORY(PSYCHOLOGY), STRESS(PHYSIOLOGY), BRAIN, STIMULATION(PHYSIOLOGY)
Field(s)/Group(s):
Psychology, Stress Physiology, Human Factors Engineering and Man Machine Systems
Keyword(s):
*MENTAL WORKLOAD, PHYSIOLOGICAL INDICES, ELECTRICAL RECORDINGS, PE65502F, WUAFOSR3005SS
Report Date:
1992 Dec 14