Accession Number:

ADA073165

Title:

The Effects of Hypocapnia on Psychomotor and Intellectual Performance.

Descriptive Note:

Corporate Author:

FLYING PERSONNEL RESEARCH COMMITTEE LONDON (ENGLAND)

Personal Author(s):

Report Date:

1978-06-01

Pagination or Media Count:

17.0

Abstract:

Nine subjects performed 5 psychomotor tasks 2 motor, 2 intellectual and 1 combined motor and short term memory at 3 levels of alveolar carbon dioxide tension PACO2 with voluntary hyperventilation at 20 lmin. There were no performance decrements at PACO2 levels of 38.5 and 25.0 torr. At a PACO2 of 15.0 mm, there were no decrements of intellectual performance but there were highly significant decrements in motor performance. It is suggested that a lack of regional cerebral hypoxia, arising from compensating changes in regional cerebral blood flow, could be responsible for the preservation of intellectual performance at a PACO2 of 15 torr.

Subject Categories:

  • Psychology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE