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Article
Effects of hypnotizability and mental imagery on signal detection sensitivity and response bias
International journal of clinical and experimental hypnosis (1982)
  • Scott W. Brown, University of Southern Maine
  • Farthing G. William, University of Maine
  • Michael Venturino, University of Maine
Abstract
It was hypothesized that the ability to selectively concentrate attention on mental images would be greater among high hypnotizable Ss than among low hypnotizable Ss, as indicated by a greater interference with visual signal detection by concurrent visual mental imagery in response to specified nouns. This hypothesis was not supported in the overall results, though the finding of a significant interference effect among the high hypnotizable female Ss, but not among other subgroups, indicates that further research with a more refined procedure might be worthwhile. On the control trials without images, the high hypnotizable Ss made more false alarms than lows, and had a significantly different bias index indicating that high hypnotizable Ss were more likely than lows to respond “yes” when uncertain about whether the signal was present; false alarms can be interpreted as a nonhypnotic measure of suggestibility. The high and low hypnotizable Ss did not differ in their times to generate images in response to the specified nouns.
Keywords
  • hypnosis
Publication Date
1982
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Citation Information
Scott W. Brown, Farthing G. William and Michael Venturino. "Effects of hypnotizability and mental imagery on signal detection sensitivity and response bias" International journal of clinical and experimental hypnosis Vol. 30 Iss. 3 (1982)
Available at: http://works.bepress.com/scott_brown_usm/32/