Experience with Santa Ana Dexterity Test in field evaluation of workload.
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Serial changes in urinary catecholamine excretion were determined for 17 cockpit crews (6 captains, 6 copilots and 5 flight engineers) of JASDF C-1 aircraft during 10-hour (h) scheduled flights, in which captains and copilots performed almost the same flight tasks. The norepinephrine/epinephrine ratio (N/E) in copilots decreased significantly during the flight, whereas little decrease of the N/E was found in captains. Flight engineers showed an intermediate N/E value between captains and copilots. Hormonal responses appeared to correlate with differences in the amount of flying experience of crewmembers. Differences between captains and copilots were more significant when handling the aircraft. Results suggested that flight stresses perceived by crewmembers in the same cockpit were influenced by their flying experience and flight position which could be clearly assessed by determining relative excretions of epinephrine and norepinephrine.
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All psychiatrists in practice in New Zealand were approached for details of the last 20 patients seen prior to 1 May 1987. Sixty percent complied and gave details of consultations with 1292 patients of whom one quarter were inpatients at the time of the consultation. Only one-third of patients were employed, and less than expected were married. Mental illness is disabling and, on average, patients were judged to be 50% incapacitated. Half the patients suffered from a psychotic illness and were mostly treated with drug therapy, while the quarter of patients with a neurosis or personality disorder tended to be treated with a psychotherapy. New Zealand has 4.3 psychiatrists per 100,000 population, half the ratio recommended by the World Health Organization. Given this shortage of psychiatrists it is not unreasonable that services are directed to patients incapacitated by severe illness. It is, however, regrettable that patients with milder illnesses, and still in the workforce, are not being treated by specialist psychiatrists.
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