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Max Coltheart, Rochelle Cox, Paul Sowman, Hannah Morgan, Amanda Barnier, Robyn Langdon, Emily Connaughton, Lina Teichmann, Nikolas Williams, Vince Polito
According to the Two-Factor theory of delusional belief (see e.g. Coltheart at al., 2011), there exists a cognitive system dedicated to the generation, evaluation, and acceptance or rejection of beliefs. Studies of the neuropsychology of delusion provide evidence that this system is neurally realized in right dorsolateral prefrontal cortex (rDLPFC). Furthermore, we have shown that convincing analogues of many specific delusional beliefs can be created in nonclinical subjects by hypnotic suggestion and we think of hypnosis as having the effect of temporarily interfering with the operation of the belief system, which allows acceptance of the delusional suggestions...
January 31, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
Samantha O Munson, Arreed F Barabasz, Marianne Barabasz
On the basis of the transtheoretical model of change, we hypothesized that hypnosis would facilitate significantly greater movement through the stages of change toward smoking cessation in contrast to psychoeducation. Thirty participants were pretested for hypnotizability using the Elkins Hypnotizability Scale (EHS). Participants' readiness for change was assessed using the University of Rhode Island Change Assessment scale (URICA). The EHS relaxation induction was used to induce hypnosis. Hypnotic suggestions addressed motivation and ambivalence...
January 2018: International Journal of Clinical and Experimental Hypnosis
Silvano Presciuttini, Michele Curcio, Rosalia Sciarrino, Fabrizio Scatena, Mark P Jensen, Enrica L Santarcangelo
The possible cooperation between hypnotizability-related and placebo mechanisms in pain modulation has not been consistently assessed. Here, we investigate possible genetic bases for such cooperation. The OPRM1 gene, which encodes the μ1 opioid receptor-the primary site of action for endogenous and exogenous opioids-is polymorphic in the general population for the missense mutation Asn40Asp (A118G, rs1799971). The minor allele 118G results in decreased levels of OPRM1 mRNA and protein. As a consequence, G carriers are less responsive to opioids...
January 2018: International Journal of Clinical and Experimental Hypnosis
Zinaida I Storozheva, Anna V Kirenskaya, Mikhail N Gordeev, Maria E Kovaleva, Vladimir Yu Novototsky-Vlasov
We investigated the association between hypnotizability, COMT polymorphism, P50 suppression ratio, and prepulse inhibition of acoustic startle response (ASR) in 21 high (HH) and 19 low (LH) hypnotizable subjects. The frequency of Met/Met carriers of COMT polymorphysm was higher in HH than in LH group (33.3% versus 10.6%, p = .049). Increased ASR amplitude and latency and decreased prepulse inhibition at 120 ms lead interval were found in the HH compared to the LH group. The effect of COMT genotype on prepulse inhibition was observed in LH group only...
January 2018: International Journal of Clinical and Experimental Hypnosis
Sakari Kallio, Mika Koivisto, Johanna K Kaakinen
Are synaesthetic experiences congenital and so hard-wired, or can a functional analogue be created? We induced an equivalent of form-colour synaesthesia using hypnotic suggestions in which symbols in an array (circles, crosses, squares) were suggested always to have a certain colour. In a Stroop type-naming task, three of the four highly hypnotizable participants showed a strong synaesthesia-type association between symbol and colour. This was verified both by their subjective reports and objective eye-movement behaviour...
December 11, 2017: Scientific Reports
Bingren Zhang, Jiawei Wang, Qisha Zhu, Guorong Ma, Chanchan Shen, Hongying Fan, Wei Wang
BACKGROUND: Highly hypnotizable individuals have impaired executive function, elevated motor impulsivity and increased emotional sensitivity, which are sometimes found in bipolar disorder patients. It is then reasonable to assume that certain aspects of hypnotic susceptibility differ with the types of bipolar disorder. METHODS: The Stanford Hypnotic Susceptibility Scale: Form C (SHSS:C) test, the Mood Disorder Questionnaire (MDQ), the Hypomanic Checklist-32 (HCL-32) and the Plutchick-van Praag Depression Inventory (PVP) were applied to 62 patients with bipolar I disorder, 33 bipolar II disorder, and 120 healthy volunteers...
November 9, 2017: BMC Psychiatry
Etzel Cardeña, Barbara Nordhjem, David Marcusson-Clavertz, Kenneth Holmqvist
Responsiveness to hypnotic procedures has been related to unusual eye behaviors for centuries. Kallio and collaborators claimed recently that they had found a reliable index for "the hypnotic state" through eye-tracking methods. Whether or not hypnotic responding involves a special state of consciousness has been part of a contentious debate in the field, so the potential validity of their claim would constitute a landmark. However, their conclusion was based on 1 highly hypnotizable individual compared with 14 controls who were not measured on hypnotizability...
2017: PloS One
Francesca Diolaiuti, Tommaso Banfi, Enrica L Santarcangelo
High hypnotizability is associated with left-sided cerebral asymmetry, which could influence measurement of the Peripersonal Space (PPS). Right-handed participants with high (highs, n = 20), medium (mediums, n = 9), and low hypnotizability scores (lows, n = 20) performed the line bisection test on a computer screen automatically displaced at distances of 30, 60, and 90 cm from the subjects' eyes. Highs' results showed rightward bias of the bisection (Relative Error, RE) for all presentation distances...
October 2017: International Journal of Clinical and Experimental Hypnosis
Katalin Varga, Zoltán Kekecs, P S Myhre, Emese Józsa
A new control condition called Wiki is introduced. Key themes of each test suggestion of the Stanford Hypnotic Susceptibility Scale, Form C, were matched by a corresponding extract from The authors compared phenomenological reports of participants across 4 conditions: hypnosis split into high and low hypnotizable subgroups, music, and Wiki condition, using the Phenomenology of Consciousness Inventory. High hypnotizables undergoing hypnosis reported higher altered experience and altered states of awareness than individuals in the Wiki condition, supporting the authors' hypothesis that the Wiki condition does not evoke an altered state of consciousness (internal dialogue, volitional control, and self-awareness did not differ)...
October 2017: International Journal of Clinical and Experimental Hypnosis
E R Katonai, Anna Szekely, A Vereczkei, Maria Sasvari-Szekely, Éva I Bányai, Katalin Varga
Hypnotizability is related to the Val(158)Met polymorphism of the COMT gene. The authors' aim was to find associations between candidate genes and subjective dimensions of hypnosis; 136 subjects participated in hypnosis and noninvasive DNA sampling. The phenomenological dimensions were tapped by the Archaic Involvement Measure (AIM), the Phenomenology of Consciousness Inventory (PCI), and the Dyadic Interactional Harmony Questionnaire (DIH). The main results were that the "Need of dependence" subscale of AIM was associated with the COMT genotypes...
October 2017: International Journal of Clinical and Experimental Hypnosis
Joshua Wortzel, David Spiegel
Cancer affects a growing proportion of the population as survival improves. The illness and its treatment brings a substantial burden of symptoms, including pain, anxiety, insomnia, and grief. Here, the uses of hypnosis in the treatment of these cancer-related problems will be reviewed. The utility of measuring hypnotizability in the clinical setting will be discussed. The current neurobiology of hypnotizability and hypnosis will be reviewed. Methods and results of using hypnosis for pain control in acute and chronic settings will be presented...
July 2017: American Journal of Clinical Hypnosis
Jim R Sliwinski, Gary R Elkins
The mechanism of action responsible for hypnotherapy's effect in reducing hot flashes is not yet known. The purpose of this study was to examine the role of response expectancies as a potential mediator. Hypnotizability was also tested as an effect moderator. Data were collected from a sample of 172 postmenopausal women, who had been randomized to receive either a 5-week hypnosis intervention or structured attention counseling. Measures of response expectancies were analyzed to determine if the relationship between group assignment and hot flashes frequency was mediated by expectancies for treatment efficacy...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
Yingchun Zhang, Yunke Wang, Chanchan Shen, Yingying Ye, Si Shen, Bingren Zhang, Jiawei Wang, Wei Chen, Wei Wang
BACKGROUND: The relationship between normal personality and hypnotic susceptibility is important for understanding mental processing and mental disorders, but it is less consistent in normal people or in patients with a psychiatric disorder. We have hypothesized that the correlation exists but varies in individuals with different levels of hypnotizability. PARTICIPANTS AND METHODS: We invited 72 individuals with high (HIGH group) and 47 individuals with low (LOW group) hypnotic susceptibilities to undertake tests of NEO-PI-R and the Stanford Hypnotic Susceptibility Scale, Form C (SHSSC)...
2017: Neuropsychiatric Disease and Treatment
Douglas J Tataryn, John F Kihlstrom
Two experiments that studied the effects of hypnotic suggestions on tactile sensitivity are reported. Experiment 1 found that suggestions for anesthesia, as measured by both traditional psychophysical methods and signal-detection procedures, were linearly related to hypnotizability. Experiment 2 employed the same methodologies in an application of the real-simulator paradigm to examine the effects of suggestions for both anesthesia and hyperesthesia. Significant effects of hypnotic suggestion on both sensitivity and bias were found in the anesthesia condition but not for the hyperesthesia condition...
April 2017: International Journal of Clinical and Experimental Hypnosis
Paul F Dell
The author explores the nature of hypnosis, which he characterizes as a motivated mode of neural functioning that enables most humans to alter, to varying degrees, their experience of body, self, actions, and world. The essence of hypnosis is not to be found in hetero-hypnosis; instead, it lies in the spontaneous self-activation of that mode of neural functioning. The hypnosis field has substantially lost sight of spontaneous self-activation, because the word hypnosis is usually used to mean hetero-hypnosis...
April 2017: International Journal of Clinical and Experimental Hypnosis
András Költő, Vince Polito
Changes in the sense of agency are defining feature of hypnosis. The Sense of Agency Rating Scale (SOARS) is a 10-item questionnaire, administered after a hypnosis session to assess alteration in the sense of agency. In the present study, a Hungarian version of the measure (SOARS-HU) is presented. The SOARS-HU and the Phenomenology of Consciousness Inventory (PCI) were administered to 197 subjects following hypnotizability screening with the Harvard Group Scale of Hypnotic Susceptibility Scale, Form A (HGSHS:A)...
March 2017: Consciousness and Cognition
Anoushiravan Zahedi, Birgit Stuermer, Javad Hatami, Reza Rostami, Werner Sommer
The classic Stroop task demonstrates the persistent and automatic effects of the meaning of color words that are very hard to inhibit when the task is to name the word color. Post-hypnotic instructions may enable highly-hypnotizable participants to inhibit the automatic access to word meaning. Here we compared the consequences of hypnosis alone and hypnosis with post-hypnotic instructions on the Stroop effect and its facilitation and inhibition components. Importantly, we studied the mechanisms of the hypnosis effects at the neural level by analyzing EEG frequencies...
February 2017: Neuropsychologia
Gary Grogan, Arreed Barabasz, Marianne Barabasz, Ciara Christensen
The authors tested the hypothesis that hypnotic age regression produces a shift from secondary- to primary-thought processing in hypnotizable participants. Thirty participants were tested for hypnotizability using the Elkins Scale of Hypnotizability (EHS). Participants were exposed to a tailored hypnotic arm-levitation induction and a hypnotic suggestion to age regress to 5 years of age and to have a dream. Primary-process thinking was assessed using the Primary-Process Thinking Scale. An independent t test with 2 levels of hypnotizability (middle and high) showed high hypnotizables demonstrated higher ratings of primary thought processing than those in the middle group...
January 2017: International Journal of Clinical and Experimental Hypnosis
Michael T Finn, Jared I Goldman, Gyrid B Lyon, Michael R Nash
The division of cognition into primary and secondary processes is an important part of contemporary psychoanalytic metapsychology. Whereas primary processes are most characteristic of unconscious thought and loose associations, secondary processes generally govern conscious thought and logical reasoning. It has been theorized that an induction into hypnosis is accompanied by a predomination of primary-process cognition over secondary-process cognition. The authors hypothesized that highly hypnotizable individuals would demonstrate more primary-process cognition as measured by a recently developed cognitive-perceptual task...
January 2017: International Journal of Clinical and Experimental Hypnosis
Enrico Facco, Ines Testoni, Lucia Ronconi, Edoardo Casiglia, Gastone Zanette, David Spiegel
This study examined the relationship between the Hypnotic Induction Profile (HIP) and several psychological tests: Tellegen Absorption Scale (TAS), Spontaneity Assessment Inventory-Revised (SAI-R), Dissociative Experiences Scale (DES), Short-Form Boundary Questionnaire (SFBQ), Mini Locus of Control (MLOC), Testoni Death Representation Scale (TDRS), and the Interpersonal Reactivity Index (IRI). Two hundred and forty volunteers were administered the above tests; 78 of them were also administered the HIP, and its scores were compared to those on the other tests...
January 2017: International Journal of Clinical and Experimental Hypnosis
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