Psychophysiological consequences of unexplained arousal: a posthypnotic suggestion paradigm

Area of Science:

• Psychology
• Psychophysiology
• Cognitive Science

Background:

• Understanding the interplay between physiological arousal and emotional/cognitive states is crucial.
• The role of awareness in modulating responses to physiological changes is not fully understood.

Purpose of the Study:

• To compare emotional, cognitive, and physiological responses to induced arousal with and without awareness of its source.
• To investigate differences between hypnotizable and non-hypnotizable individuals in their response to unexplained arousal.

Main Methods:

• A within-subjects design was employed with 9 highly hypnotizable and 9 non-hypnotizable participants.
• Participants received posthypnotic suggestions for arousal (increased heart and respiration rate) with and without amnesia for the suggestion's source.
• Emotional, cognitive, and physiological measures were assessed under both explained and unexplained arousal conditions.

Main Results:

• Highly hypnotizable participants showed significantly more pronounced emotional and cognitive effects when arousal was unexplained compared to explained.
• Misattributions of arousal were observed in hypnotizable participants under the unexplained condition.
• Non-hypnotizable participants did not exhibit significant differences between the explained and unexplained arousal conditions.

Conclusions:

• Awareness of the source of physiological arousal significantly modulates emotional and cognitive responses, particularly in highly hypnotizable individuals.
• Unexplained physiological arousal can lead to misattributions and heightened emotional/cognitive experiences.
• These findings contribute to understanding how discontinuous experiences may influence psychopathological symptoms.