All Outputs (55)

Nonbelieved memories (2010)
Journal Article
Mazzoni, G., Harvey, L., & Scoboria, A. (2010). Nonbelieved memories. Psychological science : a journal of the American Psychological Society / APS, 21(9), 1334-1340. https://doi.org/10.1177/0956797610379865

This is the first empirical study of vivid autobiographical memories for events that people no longer believe happened to them. Until now, this phenomenon has been the object of relatively rare, albeit intriguing, anecdotes, such as Jean Piaget's des... Read More about Nonbelieved memories.

Memory, metamemory and their dissociation in temporal lobe epilepsy (2010)
Journal Article
Howard, C. E., Andrés, P., Broks, P., Noad, R., Sadler, M., Coker, D., & Mazzoni, G. (2010). Memory, metamemory and their dissociation in temporal lobe epilepsy. Neuropsychologia, 48(4), 921-932. https://doi.org/10.1016/j.neuropsychologia.2009.11.011

Patients with temporal-lobe epilepsy (TLE) present with memory difficulties. The aim of the current study was to determine to what extent these difficulties could be related to a metamemory impairment. Fifteen patients with TLE and 15 matched healthy... Read More about Memory, metamemory and their dissociation in temporal lobe epilepsy.

The Effects of Observation and Gender on Psychogenic Symptoms (2010)
Journal Article
Mazzoni, G., Foan, L., Hyland, M. E., & Kirsch, I. (2010). The Effects of Observation and Gender on Psychogenic Symptoms. Health Psychology, 29(2), 181-185. https://doi.org/10.1037/a0017860

Objective: To assess the effects of modeling and its interaction with gender in the production of psychogenic symptoms. Design: Healthy volunteers were asked to inhale an inert substance described as a suspected environmental toxin that had been repo... Read More about The Effects of Observation and Gender on Psychogenic Symptoms.

Hypnotic suggestibility, cognitive inhibition, and dissociation (2009)
Journal Article
Wright, D. B., Hutton, S., Brown, E., Dienes, Z., Kirsch, I., & Mazzoni, G. (2009). Hypnotic suggestibility, cognitive inhibition, and dissociation. Consciousness and cognition, 18(4), 837-847. https://doi.org/10.1016/j.concog.2009.07.009

We examined two potential correlates of hypnotic suggestibility: dissociation and cognitive inhibition. Dissociation is the foundation of two of the major theories of hypnosis and other theories commonly postulate that hypnotic responding is a result... Read More about Hypnotic suggestibility, cognitive inhibition, and dissociation.

Hypnotic induction decreases anterior default mode activity (2009)
Journal Article
McGeown, W. J., Mazzoni, G., Venneri, A., & Kirsch, I. (2009). Hypnotic induction decreases anterior default mode activity. Consciousness and cognition, 18(4), 848-855. https://doi.org/10.1016/j.concog.2009.09.001

The 'default mode' network refers to cortical areas that are active in the absence of goal-directed activity. In previous studies, decreased activity in the 'default mode' has always been associated with increased activation in task-relevant areas. W... Read More about Hypnotic induction decreases anterior default mode activity.

Suggested visual hallucinations in and out of hypnosis (2009)
Journal Article
Mazzoni, G., Rotriquenz, E., Carvalho, C., Vannucci, M., Roberts, K., & Kirsch, I. (2009). Suggested visual hallucinations in and out of hypnosis. Consciousness and cognition, 18(2), 494-499. https://doi.org/10.1016/j.concog.2009.02.002

We administered suggestions to see a gray-scale pattern as colored and a colored pattern in shades of gray to 30 high suggestible and eight low suggestible students. The suggestions were administered twice, once following the induction of hypnosis an... Read More about Suggested visual hallucinations in and out of hypnosis.

Individual differences in object and spatial imagery: personality correlates (2008)
Journal Article
Vannucci, M., & Mazzoni, G. (2009). Individual differences in object and spatial imagery: personality correlates. Personality and individual differences, 46(4), 402-405. https://doi.org/10.1016/j.paid.2008.11.003

In the present study, we investigated whether individual differences in object and spatial imagery are correlated with two personality variables, fantasy proneness and dissociation. One hundred and eight undergraduates filled out the Object-Spatial I... Read More about Individual differences in object and spatial imagery: personality correlates.

"Don't know" responding to answerable and unanswerable questions during misleading and hypnotic interviews (2008)
Journal Article
Scoboria, A., Mazzoni, G., & Kirsch, I. (2008). "Don't know" responding to answerable and unanswerable questions during misleading and hypnotic interviews. Journal of Experimental Psychology: Applied, 14(3), 255-265. https://doi.org/10.1037/1076-898X.14.3.255

"Don't know" (DK) responses to interview questions are conceptually heterogeneous, and may represent uncertainty or clear statements about the contents of memory. A study examined the subjective intent of DK responses in relation to the objective sta... Read More about "Don't know" responding to answerable and unanswerable questions during misleading and hypnotic interviews.

Portuguese norms for the Waterloo-Stanford Group C (WSGC) scale of hypnotic susceptibility (2008)
Journal Article
Carvalho, C., Kirsch, I., Mazzoni, G., & Leal, I. (2008). Portuguese norms for the Waterloo-Stanford Group C (WSGC) scale of hypnotic susceptibility. International Journal of Clinical and Experimental Hypnosis, 56(3), 295-305. https://doi.org/10.1080/00207140802041850

Portuguese norms for the Waterloo-Stanford Group C (WSGC) scale of hypnotic susceptibility are presented. A Portuguese translation of this scale was given to 625 Portuguese college students. Score distribution, item analysis, and reliability of the W... Read More about Portuguese norms for the Waterloo-Stanford Group C (WSGC) scale of hypnotic susceptibility.

Suggesting childhood food illness results in reduced eating behavior (2008)
Journal Article
Scoboria, A., Mazzoni, G., & Jarry, J. L. (2008). Suggesting childhood food illness results in reduced eating behavior. Acta Psychologica, 128(2), 304-309. https://doi.org/10.1016/j.actpsy.2008.03.002

Previous studies have shown that suggesting childhood events can influence current self-reported attitudes towards future behavior. This study shows that suggesting a false past event (i.e. becoming sick on a specific food during childhood) can modif... Read More about Suggesting childhood food illness results in reduced eating behavior.

The effect of posthypnotic suggestion, hypnotic suggestibility, and goal intentions on adherence to medical instructions (2008)
Journal Article
Carvalho, C., Mazzoni, G., Kirsch, I., Meo, M., & Santandrea, M. (2008). The effect of posthypnotic suggestion, hypnotic suggestibility, and goal intentions on adherence to medical instructions. International Journal of Clinical and Experimental Hypnosis, 56(2), 143-155. https://doi.org/10.1080/00207140701849478

The effects of implementation intentions and posthypnotic suggestion were investigated in 2 studies. In Experiment 1, participants with high levels of hypnotic suggestibility were instructed to take placebo pills as part of an investigation of how to... Read More about The effect of posthypnotic suggestion, hypnotic suggestibility, and goal intentions on adherence to medical instructions.

Object imagery and object identification: Object imagers are better at identifying spatially-filtered visual objects (2008)
Journal Article
Vannucci, M., Mazzoni, G., Chiorri, C., & Cioli, L. (2008). Object imagery and object identification: Object imagers are better at identifying spatially-filtered visual objects. Cognitive processing, 9(2), 137-143. https://doi.org/10.1007/s10339-008-0203-5

Object imagery refers to the ability to construct pictorial images of objects. Individuals with high object imagery (high-OI) produce more vivid mental images than individuals with low object imagery (low-OI), and they encode and process both mental... Read More about Object imagery and object identification: Object imagers are better at identifying spatially-filtered visual objects.

Remembrance of hypnosis past (2007)
Journal Article
Kirsch, I., Mazzoni, G., & Montgomery, G. H. (2007). Remembrance of hypnosis past. American journal of clinical hypnosis : official journal [of] the American Society of Clinical Hypnosis and the Academy of Applied Psychology in Dentistry, 49(3), 171-178. https://doi.org/10.1080/00029157.2007.10401574

The history of the most enduring experimental design in hypnosis research is reviewed. More than 75 years of research converge to indicate that: 1) all of the phenomena produced in hypnosis by suggestion also can be produced by suggestion without the... Read More about Remembrance of hypnosis past.

Did you witness demonic possession? A response time analysis of the relationship between event plausibility and autobiographical beliefs (2007)
Journal Article
Mazzoni, G. (2007). Did you witness demonic possession? A response time analysis of the relationship between event plausibility and autobiographical beliefs. Psychonomic bulletin & review, 14(2), 277-281. https://doi.org/10.3758/BF03194064

This study tested the hypothesis that the search for information pertinent to answering the question "Did event x happen to you?" is preceded by a preliminary plausibility assessment, the outcome of which affects the amount of effort invested in the... Read More about Did you witness demonic possession? A response time analysis of the relationship between event plausibility and autobiographical beliefs.

Illness by suggestion: Expectancy, modeling, and gender in the production of psychosomatic symptoms (2007)
Journal Article
Lorber, W., Mazzoni, G., & Kirsch, I. (2007). Illness by suggestion: Expectancy, modeling, and gender in the production of psychosomatic symptoms. Annals of Behavioral Medicine, 33(1), 112-116. https://doi.org/10.1207/s15324796abm3301_13

Background: Expectancy and modeling have been cited as factors in mass psychogenic illness (MPI), which reportedly affects more women than men. Purpose: The purpose of the study is to assess the effects of expectancy and modeling in a controlled labo... Read More about Illness by suggestion: Expectancy, modeling, and gender in the production of psychosomatic symptoms.