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Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation

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Attention control and susceptibility to hypnosis.

Cristina Iani¹, Federico Ricci, Giulia Baroni

¹Dipartimento di Scienze Sociali, Cognitive e Quantitative, Università di Modena e Reggio Emilia, Italy. cristina.iani@unimore.it

Consciousness and Cognition

|August 4, 2009

Summary

Posthypnotic suggestion can reduce interference from irrelevant spatial information, but only in individuals highly susceptible to hypnosis. This finding highlights hypnosis

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Published on: July 5, 2015

Area of Science:

Cognitive Psychology
Neuroscience
Hypnotherapy Research

Background:

Task-irrelevant spatial information can interfere with cognitive performance.
Individual differences exist in susceptibility to hypnotic suggestion.
The efficacy of posthypnotic suggestion in mitigating cognitive interference is not fully understood.

Purpose of the Study:

To compare the impact of irrelevant spatial information on high- and low-hypnotic-susceptible individuals.
To determine if posthypnotic suggestion can eliminate this interference.
To investigate the role of hypnotic induction in suggestion efficacy.

Main Methods:

Participants categorized as high or low hypnotic susceptible.
Performance on a Simon-like interference task assessed.
Posthypnotic suggestion administered to inhibit processing of spatial information.
Suggestion delivered with and without prior hypnotic induction.

Main Results:

The Simon effect (interference) was comparable in high and low susceptible individuals without suggestion.
Posthypnotic suggestion significantly reduced the Simon effect in high-susceptible individuals only.
Hypnotic induction did not significantly alter the suggestion's effect on interference.

Conclusions:

Specific posthypnotic suggestions can modulate cognitive information processing in highly hypnotizable individuals.
Hypnosis-related suggestion effectively reduces interference from task-irrelevant spatial cues in susceptible individuals.
Individual differences in hypnotic susceptibility are critical for the effectiveness of cognitive modulation via suggestion.