Emerging Technologies for Nutrition Research Potential for Assessing Military Performance Capability (1997) / Chapter Skim
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Emerging Technologies for Nutrition Research, 1997 Pp.
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ASSESSMENT OF HUMAN BEHAVIOR For a number of years, many investigators have been interested in how it might be possible to measure human cognitive behavior in a more continuous and less invasive manner than is possible with conventional tests of cognitive function. Standard tests of cognitive performance usually involve filling out forms with paper and pencil, taking written tests on a computer, or using mechanical devices such as Peg-Boards or other manipulanda (items that can be manipulated)
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to take place once a day, each test session must be conducted at the same time. It is not appropriate to compare data collected at one time of day with data collected at another time.
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when appropriate vigilance tests are employed, consistent effects of caffeine in this dose range are observed reliably (Fine et al., 1994; Lieberman, 1992)
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minute-by-minute patterns of the wearer's activity (Lieberman et al. 1989; Redmond and Hegge, 1985; Webster et al., 1982; for a comprehensive review see Tryon, 1991)
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Figure 25-1 Daily patterns of rest and activity in a Marine volunteer wearing the AMA-32 activity monitor for 9 consecutive days. The volunteer was participating in a U.S.
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activity. Although activity monitors cannot assess performance per se, the data they collect can be related to both physical and mental state.
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1994; Hirshkowitz et al., 1993; Koelega, 1989; Tiplady, 1992)
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Figure 25-2 Four days of consecutive data collected with the vigilance monitor developed at the U.S. Army Research Institute of Environmental Medicine (USARIEM)
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that the critical nature of bright light in the regulation of human circadian rhythms became known (Lewy et al., 1980)
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compared with stopping to take a behavioral test, responding to the monitor is a minor inconvenience. • The monitor is suitable for field use and provides information on several environmental factors: light, sound, and ambient temperature.
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Cole, R.J., and D.F. Kripke 1988 Progress in automatic sleep/wake scoring by wrist actigraph.
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Lieberman H.R., M.Z.
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Teicher, M.H., J.M. Lawrence, N.I.
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could have that capability fairly easily, although the device would not be as field hardened with special modifications on it. Those are experimental questions that I hope we will be able to start to address with this kind of technology.
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For the applications that we are interested in out in the field, it is really better, I think, to collect the data this way than to do telemetry. You would have to go to a whole new device, I think, if you wanted to do telemetry with this.
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