Pain perception and EEG dynamics: Does hypnotizability account for the efficacy of the suggestions of analgesia?

Madeo, Dario; Castellani, Eleonora; Mocenni, Chiara; Santarcangelo, ‪Enrica Laura

doi:10.1016/j.physbeh.2015.03.040

Cited by 19 publications

(12 citation statements)

References 56 publications

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“…This is in line with the findings of spectral analysis revealing more widespread desynchronization in Highs than in Lows during both visual and somesthetic imagery 81 . In addition, the scarce changes elicited by tasks in Highs agree with the findings of Recurrence Quantification Analysis which failed to detect differences in the EEG recurrence plot of Highs when they did and did not receive efficacious suggestions of analgesia during nociceptive stimulation 70 .…”

Section: Sensory-cognitive Information Processingsupporting

confidence: 80%

“…With regard to the significant correlations reported between effort and basal deviation, the vividness did not significantly correlate with topological variables (Fig S.7, Spearman correlations not significant at 95%). However, the absence of significant correlation between topological and subjective indices does not challenge the relevance of the group level association accuracy-vividness, as the subjective experience is typically multidimensionally determined 69,70 .…”

Section: Task Accuracy Associates With Vividnessmentioning

confidence: 99%

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Topology highlights mesoscopic functional equivalence between imagery and perception

Ibáñez‐Marcelo

Campioni

Phinyomark

et al. 2018

Preprint

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The functional equivalence between mental images and perception or motion has been proposed on the basis of neuroimaging evidence of large spatially overlapping activations between real and imagined sensori-motor conditions. However, similar local activation patterns do not imply the same mesoscopic integration of brain regions active during imagery and perception or action. Here we present the first EEG evidence of topological equivalence between functional network organization at intermediate and global scales during tasks. We show that the degree of functional equivalence varies in the population and is associated with different magnitudes in the restructuring of the functional connectivity between imagery and real tasks. In particular, changes observed during imagery with respect to basal conditions account for the cognitive effort experienced during imagery, and subjects characterized by stronger functional equivalence exhibit smaller topological deviations in the imagination tasks performed after real tasks, thus showing learning effects. Altogether, our findings point to different sensori-cognitive information processing in the subjects showing different functional equivalence. We anticipate our results to be a starting point for a novel dynamical description of functional equivalence, which will be relevant for socio-cognitive theories of embodiment and cognitive formulations of how different selves emerge from neurophysiological assets.

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Section: Sensory-cognitive Information Processingsupporting

confidence: 80%

Section: Task Accuracy Associates With Vividnessmentioning

confidence: 99%

Topology highlights mesoscopic functional equivalence between imagery and perception

Ibáñez‐Marcelo

Campioni

Phinyomark

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…(Buchgreitz et al , ; Schulz et al , ), and the latter targets primarily the alterations of EEG power in the time dimension. In recent years, nonlinear calculation methods have been suggested to be more reliable in reflecting the electrophysiological dynamics of the human brain, because the brain itself functions by network‐like connections among abundant neural cells distributed in a nonlinear structure (Madeo et al , ). Complexity analysis (Doğanaksoy and Göloğlu, ) is one of the widely used nonlinear approaches (‘complexity’ is a measurement for qualifying the degree of the disordered state), including Lempel–Ziv complexity (LZC, a nonlinear measure of complexity in a series of time‐related signals by testing the recurrence rate of distinct substrings of the time series) and fractal dimension (FD, a ratio providing a statistical index of complexity, comparing how in detail a pattern, that is a fractal pattern, changes with the scale at which it is measured; Sitges et al , ; Madeo et al , ).…”

Section: Introductionmentioning

confidence: 99%

The effects of customised brainwave music on orofacial pain induced by orthodontic tooth movement

Huang

Wang

et al. 2016

Oral Diseases

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“…The study also did not recognize any variable which could discriminate highs from lows and medium hypnotizable participants (mediums). Recurrence quantification analysis of the EEG plot [4] revealed that the plot determinism discriminates highs from lows at midline parietal sites [5,6]. Additionally, the topological analysis of EEG signals has shown a qualitatively different cortical activity during both sensorimotor and cognitive tasks.…”

Section: Hypnotizability As a Psychophysiological Traitmentioning

confidence: 99%

Imagined and Actual Movements with and without Suggestions for anesthesia in Subjects with Different Hypnotizability

Ruggirello¹,

Santarcangelo²,

Sebastiani³

2019

obm icm

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Background: Hypnotizability is a psychophysiological trait associated with several differences including the level of functional equivalence (FE) between imagery and perception, i.e., the similarity of the cortical activations and network configurations associated with each of them. FE is stronger in high hypnotizability individuals (highs) than low hypnotizable participants (lows). In this framework, this study investigates the correlation between electroencephalogram (EEG) of imagined arm/hand movements (MI) and of actual movements performed in the absence of suggestions (M) and in the presence of suggestions of arm/hand anesthesia (MA) in highs and lows. Methods: The EEG alpha (8-12 Hz) and beta (13-25 Hz) absolute power, classically associated with movement preparation and execution, were studied in 18 highs and 17 lows classified according to the Stanford Hypnotic Susceptibility Scale, form A. EEG was recorded during M, MI, and MA. The subjective reports of imagery and the duration of movements were also studied. Results: The duration of movements did not differ between highs and lows. Highs reported better imagery during MI, greater perceived influence of the suggestion of anesthesia during MA, and lower cognitive efforts than lows for both tasks. In line with earlier studies, the spectral analysis did not reveal significant restructuring of the cortical activity during tasks in highs, whereas lows showed cortical changes during MI and MA indicating that they were able to mentally simulate movements and to accept suggestions for anesthesia during voluntary movement, despite their low hypnotizability scores. Conclusions: The present study indicates that unusual psychophysiological characteristics can differ in the response of individuals to suggestions.

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Pain perception and EEG dynamics: Does hypnotizability account for the efficacy of the suggestions of analgesia?

Cited by 19 publications

References 56 publications

Topology highlights mesoscopic functional equivalence between imagery and perception

Topology highlights mesoscopic functional equivalence between imagery and perception

The effects of customised brainwave music on orofacial pain induced by orthodontic tooth movement

Imagined and Actual Movements with and without Suggestions for anesthesia in Subjects with Different Hypnotizability

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