Skin-Conductance and Reaction-Time in a Continuous Auditory Monitoring Task

1966 ◽  
Vol 79 (3) ◽  
pp. 470 ◽  
Author(s):  
John L. Andreassi
Keyword(s):  
Reaction Time ◽  
Skin Conductance ◽  
Monitoring Task ◽  
Auditory Monitoring

Effect of prewarning on increase in reaction time in an auditory monitoring task.

1973 ◽  
Vol 101 (2) ◽  
pp. 378-380 ◽  
Author(s):  
Hans O. Lisper ◽  
Lennart Melin ◽  
Per O. Sjoden
Keyword(s):  
Reaction Time ◽  
Monitoring Task ◽  
Auditory Monitoring

Effects of Signal Intensity on Increase of Reaction Time on an Auditory Monitoring Task

1972 ◽  
Vol 34 (2) ◽  
pp. 439-444 ◽  
Author(s):  
Hans-Olof Lisper ◽  
Anders Kjellberg ◽  
Lennart Melin
Keyword(s):  
Reaction Time ◽  
Signal Intensity ◽  
Reaction Times ◽  
The Other ◽  
Monitoring Task ◽  
Auditory Signals ◽  
Auditory Monitoring ◽  
Over Time ◽  
Signal Intensities ◽  
Entire Distribution

5 Ss were required to respond as rapidly as possible to auditory signals of threshold, 34, 48, and 88 db intensity, mixed within the same 2-hr. session. Reaction time increased over time for all signal intensities, but the increase was larger for the threshold signal. There were two kinds of increase, one independent of signal intensity transferring the entire distribution toward longer reaction times. The other kind of increase was dependent on signal intensity and increased the number of long reaction times for the threshold signal.

Maintainance of vigilance in an auditory monitoring task.

1964 ◽  
Vol 48 (1) ◽  
pp. 13-15 ◽  
Author(s):  
J. S. Kidd ◽  
Angelo Micocci
Keyword(s):  
Monitoring Task ◽  
Auditory Monitoring

Models of Mania: An Individual Case Study

1975 ◽  
Vol 127 (1) ◽  
pp. 78-85 ◽  
Author(s):  
D. R. Hemsley ◽  
H. C. Philips
Keyword(s):  
Heart Rate ◽  
Reaction Time ◽  
Skin Conductance ◽  
Single Case ◽  
Severe Depression ◽  
Reaction Time Task ◽  
Manic Depressive Psychosis ◽  
Manic Depressive ◽  
Activity Measurements ◽  
Depressive Episodes

SummaryA longitudinal study of a single case of manic-depressive psychosis investigated the relationship between psychiatric ratings, reaction time and two measures of autonomic activity. Measurements were made on 19 occasions over a five-month period. The number of slow responses on the reaction time task increased with increasing depression. Manic periods appeared not to be characterized by a slowing of responses, but rather by an increase in the number of premature responses, i.e. those made to the warning signal. A derived performance index discriminated over the complete range from severe depression to severe mania.Increased depression was associated with lower heart rate resting levels, and increasing mania with increased skin conductance levels. An increased frequency of slow reaction times was significantly associated with lower resting heart rate. Skin conductance measures correlated significantly with the number of premature responses made on the reaction time tasks. Some differences in the relationships emerged when data obtained during the administration of lithium were included in the analysis.The results are discussed in relation to both the bipolar and the continuum models of manic-depressive psychosis. The latter model is not supported by the present investigation, since manic episodes were not characterized by a more severe departure from normality than depressive episodes on either the number of slowed responses or autonomic measures.

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