Abstract:This study assessed the relationship of age and hypnotic suggestibility in an effort to partially update the findings of Morgan and Hilgard (1973). A total of 2,660 undergraduates were administered the Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A; Shor & Orne, 1962) over a 7 year period. Consistent with Morgan and Hilgard's results, we found a general trend for hypnotic suggestibility scores to decrease from age 17 to 40, and then increase thereafter. We also found that female participants s… Show more
“…There was a significant main effect of sex, F(1, 127) = 4.06, p < .05, with females showing significantly more agreement with questionnaire items generally (-.055), than males (-.324), consistent with findings that females are, on average, slightly more suggestible than males (e.g., Page & Green, 2007).…”
Section: Presence and Absence Of Experiencessupporting
What is it like to have a body? The present study takes a psychometric approach to this question. We collected structured introspective reports of the rubber hand illusion, to systematically investigate the structure of bodily self-consciousness. Participants observed a rubber hand that was stroked either synchronously or asynchronously with their own hand and then made proprioceptive judgments of the location of their own hand and used Likert scales to rate their agreement or disagreement with 27 statements relating to their subjective experience of the illusion. Principal components analysis of this data revealed four major components of the experience across conditions, which we interpret as: embodiment of rubber hand, loss of own hand, movement, and affect. In the asynchronous condition, an additional fifth component, deafference, was found. Secondary analysis of the embodiment of rubber hand component revealed three subcomponents in both conditions: ownership, location, and agency. The ownership and location components were independent significant predictors of proprioceptive biases induced by the illusion. These results suggest that psychometric tools may provide a rich method for studying the structure of conscious experience, and point the way towards an empirically rigorous phenomenology.
Psychometrics of Embodiment 3
“…There was a significant main effect of sex, F(1, 127) = 4.06, p < .05, with females showing significantly more agreement with questionnaire items generally (-.055), than males (-.324), consistent with findings that females are, on average, slightly more suggestible than males (e.g., Page & Green, 2007).…”
Section: Presence and Absence Of Experiencessupporting
What is it like to have a body? The present study takes a psychometric approach to this question. We collected structured introspective reports of the rubber hand illusion, to systematically investigate the structure of bodily self-consciousness. Participants observed a rubber hand that was stroked either synchronously or asynchronously with their own hand and then made proprioceptive judgments of the location of their own hand and used Likert scales to rate their agreement or disagreement with 27 statements relating to their subjective experience of the illusion. Principal components analysis of this data revealed four major components of the experience across conditions, which we interpret as: embodiment of rubber hand, loss of own hand, movement, and affect. In the asynchronous condition, an additional fifth component, deafference, was found. Secondary analysis of the embodiment of rubber hand component revealed three subcomponents in both conditions: ownership, location, and agency. The ownership and location components were independent significant predictors of proprioceptive biases induced by the illusion. These results suggest that psychometric tools may provide a rich method for studying the structure of conscious experience, and point the way towards an empirically rigorous phenomenology.
Psychometrics of Embodiment 3
“…The question of why female participants appear to be more influenced by the procedure remains pending. Several studies discussed gender difference in terms of factors, such as influenceability (e.g., Eagly, 1983), persuasibility (e.g., Janis and Field, 1959) or suggestibility (e.g., Page and Green, 2007), but such results seem unreliable (e.g., Pollard et al, 2004; Dienes et al, 2009). Therefore, future studies are needed to investigate the possible influence of further factors that could explain differences between male and female participants.…”
One of the hallmarks of human existence is that we all hold beliefs that determine how we act. Amongst such beliefs, the idea that we are endowed with free will appears to be linked to prosocial behaviors, probably by enhancing the feeling of responsibility of individuals over their own actions. However, such effects appear to be more complex that one might have initially thought. Here, we aimed at exploring how induced disbeliefs in free will impact the sense of agency over the consequences of one’s own actions in a paradigm that engages morality. To do so, we asked participants to choose to inflict or to refrain from inflicting an electric choc to another participant in exchange of a small financial benefit. Our results show that participants who were primed with a text defending neural determinism – the idea that humans are a mere bunch of neurons guided by their biology – administered fewer shocks and were less vindictive toward the other participant. Importantly, this finding only held for female participants. These results show the complex interaction between gender, (dis)beliefs in free will and moral behavior.
“…Only females were recruited to avoid known gender effects on sleep architecture and suggestibility (Carrier et al, 2001;Fukuda et al, 1999;Page and Green, 2007). One subject was excluded due to lacking sleep, two others did not keep caffeine restriction in one of the two experimental sessions.…”
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