Accession Number : AD1015460

Title :   Investigating Mental Workload Changes in a Long Duration Supervisory Control Task

Descriptive Note : OSTP Journal Article

Corporate Author : MIT Lincoln Laboratory Lexington United States

Personal Author(s) : Boyer,Mark ; Cummings,M L ; Spence,Lee B ; Solovey,Erin T

Full Text :

Report Date : 06 May 2015

Pagination or Media Count : 9

Abstract : With improving automation in many critical domains, operators will be expected to handle long periods of low task load while monitoring a system, and possibly responding to emergent situations. Monitoring the psychophysiological state of the operator during low task load may detect maladapted attention states in order to predict performance and facilitate a more effective workload transition during critical periods. This research explored the question of detecting anomalous attention states during transitions to high workload following extended periods of boredom using a non-invasive neuroimaging technique called functional near-infrared spectroscopy (fNIRS). Subjects at the point of lowest engagement and priming had a diminished hemodynamic response and performed worse on missile defense task, showing fNIRS may be useful for concurrent monitoring of the operator in such settings.

Descriptors :   cognitive workload , HUMAN ROBOT INTERACTION , psychophysiology , monitoring , NEUROIMAGING , INFRARED SPECTROSCOPY

Distribution Statement : APPROVED FOR PUBLIC RELEASE