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Biomedical subjects

G Benignus

Publications and source records attributed to G Benignus.

3 recordsLinked to original sources
PubMed1977

Active and passive avoidance in rats as a function of age.

Rats of four age groups: young (30 days of age), adolescent (180 days of age), adult (365 days of age), and old (547 days of age) were trained on active and passive avoidance tasks. There was impaired acquisition and 30-day rentention of passive-avoidance learning in both young and old rats, compared to the intermediate age groups, and marked impairment of acquisition and retention of active-avoidance learning in the old rats. Learning impairment is thus associated with immaturity as well as senescence.

Aging↗
PubMed1977

Lack of effects of carbon monoxide on human vigilance.

Previous publications on the effects of low levels of carbon monoxide (CO) on human vigilance performance have found conflicting results. While several studies have found statistically reliable effects, none have gone unchallenged. This article presents a critical review of the literature and the results of a study employing 52 human male subjects performing a numeric monitoring task. CO levels were 0, 100, and 200 ppm which produced mean carboxyhemoglobin levels 0.01, 4.61 and 12.62 percent respectively. No CO-exposure levels produced any effect on vigilance performance. The power of the statistical test for CO effects was shown to be quite high, even for fairly trivial possible decrements of performance.

Adult↗