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Voluntary Blood Pressure Reductions Measured With Pulse Transit Time: Training Conditions and Reactions to Mental Work
Author(s) -
Steptoe Andrew
Publication year - 1977
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1977.tb01318.x
Subject(s) - psychology , audiology , blood pressure , task (project management) , turnover , work (physics) , pulse (music) , choice reaction time , respiration , pulse rate , stimulation , training (meteorology) , physical medicine and rehabilitation , medicine , neuroscience , mechanical engineering , botany , cognition , electrical engineering , management , detector , engineering , economics , biology , physics , meteorology
Blood pressure reductions aided by exteroceptive feedback were compared with those produced with simple instructions in two groups of 10 subjects. The degree of environmental stimulation during sessions was equated in the two conditions. Additionally, the effect of feedback on blood pressure reactions to an auditory choice reaction time task was studied. Pressure changes were monitored with the pulse wave velocity method. Feedback training led to greater modifications than instructions during pressure control trials. Associated adjustments in interbeat interval and respiration rate were also observed, but were of similar magnitude in the two groups. Some carryover of training effects to the reaction time task was found, but this comparison was confounded by larger initial reactions in the feedback group.