Attention control and susceptibility to hypnosis

The present work aimed at assessing whether the interference exerted by task-irrelevant spatial information is comparable in high- and low-susceptible individuals and whether it may be eliminated by means of a specific posthypnotic suggestion. To this purpose high- and low-susceptible participants were tested using a Simon-like interference task after the administration of a suggestion aimed at preventing the processing of the irrelevant spatial information conveyed by the stimuli. The suggestion could be administered either in the absence or following a standard hypnotic induction. We showed that, outside from the hypnotic context, the Simon effect was similar in high and low-susceptible participants and it was significantly reduced following the posthypnotic suggestion in high-susceptible participants only. These results show that a specific posthypnotic suggestion can alter information processing in high-susceptible individuals and reduce the interfering effect exerted by arrow stimuli.     

Dominance and sex differences in nonverbal responses to differential eye contact

Sixteen male and 16 female subjects were divided into high- and low-dominant groups and assigned to one of two cohorts who either avoided eye contact or maintained a steady gaze. Starting 100 in. apart, subjects were asked to approach the cohort to the point where they felt most comfortable. Dependent measures were personal space, approach rate, reciprocal eye contact, and attitude toward cohort. It was found that high-dominant subjects showed increased proxemic behavior in responding to a direct gaze, while low-dominant subjects showed a decrease. Also men tend to use personal space and approach rate to signal dominance, while women use reciprocal eye contact. Finally, an exception was found to previous findings that positive attitudes are associated with high levels of eye contact. Low-dominant males, but no other groups, respond to direct gaze with a more negative attitude.     

Personality and sex differences in emotional responsiveness to positive and negative cognitive stimuli

To investigate the influence of psychoticism (P) and neuroticism (N) on emotional responding, a re-analysis was carried out on subjective and physiological data collected while Ss (n = 50) repeatedly imagined anxious (intrusive) or depressive, and pleasant thoughts or images. High N was associated with a greater negative mood state subsequent to imagining the distressing cognitive stimuli, though there was no relation with physiological reactivity. However, high P scorers did evidence less overall cardiac reactivity and, to a lesser extent, fewer skin resistance responses than low P Ss. The results are discussed in light of the moderating influence that stimulus and response characteristics as well as gender differences can have on the interaction between personality traits and emotional responding.     

Reactions to male-favouring versus female-favouring sex differences: A pre-registered experiment and Southeast Asian replication

Two studies investigated (1) how people react to research describing a sex difference, depending on whether that difference favours males or females, and (2) how accurately people can predict how the average man and woman will react. In Study 1, Western participants (N = 492) viewed a fictional popular-science article describing either a male-favouring or a female-favouring sex difference (i.e., men/women draw better; women/men lie more). Both sexes reacted less positively to the male-favouring differences, judging the findings to be less important, less credible, and more offensive, harmful, and upsetting. Participants predicted that the average man and woman would react more positively to sex differences favouring their own sex. This was true of the average woman, although the level of own-sex favouritism was lower than participants predicted. It was not true, however, of the average man, who – like the average woman – reacted more positively to the female-favouring differences. Study 2 replicated these findings in a Southeast Asian sample (N = 336). Our results are consistent with the idea that both sexes are more protective of women than men, but that both exaggerate the level of same-sex favouritism within each sex – a misconception that could potentially harm relations between the sexes.     

Parent-child relationship, temperament, and physiological reactions to fear-inducing film clips: further evidence for differential susceptibility

Recent studies have supported the intriguing hypothesis that highly reactive infants are most susceptible to the effect of parenting. This study replicates and extends an earlier study on 4-year-olds concerning higher susceptibility of more fearful children to the quality of their relationships with their mothers, as shown by their physiological reactions to fear-inducing film clips. Two groups of children (4- and 7-year-olds) were shown the same fear-inducing and neutral film clips. During the film clips, their skin conductance and heart rate variability were measured. Both 4- and 7-year-olds responded to the fear-inducing film clips with increases in skin conductance and decreases in heart rate variability. A secure relationship affected the reactivity to fearful stimuli in temperamentally more fearful children but not in less fearful children irrespective of children's ages. Our findings add to the growing literature showing that children high in negative emotion are more susceptible to positive as well as negative rearing influences for better and for worse.     

The heat illusion test and its relevance to susceptibility to hypnosis

The Heat Illusion test is of interest because of the equivocal nature of the evidence concerning both what aspects of behaviour it measures and its power to predict hypnotic susceptibility. This test was administered to 99 subjects who were also tested for susceptibility to hypnosis. The power of the test to predict hypnotic susceptibility was found to be poor, when scoring was done in the classical manner, but, using the decrement of the threshold of perception, an alternative means of scoring was discovered which improved the predictive power of the test. The results are discussed in the light of this new aspect of the test.     

Spatial task performance,sex differences,and motion sickness susceptibility

There are substantial individual differences in susceptibility to motion sickness, yet little is known about what mediates these differences. Spatial ability and sex have been suggested as possible factors in this relationship. 89 participants (57 women) were administered a Motion Sickness Questionnaire that assesses motion sickness susceptibility, a Water-level Task that gauges sensitivity to gravitational upright, and a Mental Rotation Task that tests an individual's awareness of how objects typically move in space. Significant sex differences were observed in performance of both the Water-level Task (p<.01), and the Mental Rotation Task (p<.005), with women performing less accurately than men. Women also had significantly higher scores on the Motion Sickness Questionnaire (p<.005). Among men, but not women, significant negative relationships were observed between Water-level Task performance and Motion Sickness Questionnaire score (p<.001) and between Mental Rotation Task performance and Motion Sickness Questionnaire score (p<.005). In conclusion, women performed significantly more poorly than men did on the spatial ability tasks and reported significantly more bouts of motion sickness. In addition, men showed a significant negative relationship between spatial ability and motion sickness susceptibility.     

Personality correlates and sex differences in the topological representations of self and others

This investigation attempted to identify the underlying components of the Social Self-Esteem measure. Although devised to function as a brief nonverbal measure of self-esteem applicable to a wide range of special populations, understanding of the measure remained limited. Relationships of this measure to related personality constructs and socioeconomic variables were examined to develop a clearer picture of what the Social Self-Esteem measure is actually assessing. Results indicated that the personality factor Capacity for Status was significantly related to the measure's assessment only among males. it was suggested that the Social Self-Esteem measure assesses some aspect Of what may be termed an individual's status ideal. The usefulness of differentiating scoring levels on the measure is demonstrated. Reasons for the lack of measurement usefulness among females were discussed, in terms of continued reliance among females upon significant others for status satisfaction.     

Personality differences among child molesters.

This study compared the MMPI profiles of two groups of child molesters, those with no prior arrests versus those with one or more prior arrests, in order to assess certain clinically derived inferences about these offenders. The sample consisted of 33 persons convicted of child molestation. The group with prior arrests showed more psychopathology than the group with no previous arrests.     

Asymmetry in human cognition: further replication and extension

Vladimir Lefebvre proposed an algebraic model of self-reflexion in the 1980s. He viewed reflexion as a product of the structure and computational rules of Gamma algebra and his equations are considered metaphors for how consciousness is structured. From the framework of this model, Lefebvre hypothesized an asymmetry in human cognition. One of the early studies supporting his model was conducted by Victorina Lefebvre. Over the years, other studies have been conducted, but not all have shown similar support as the original findings of Victorina Lefebvre. This study attempted to extend her findings in testing whether or not other ambiguous stimuli could be used in support of the model.     

Personality and susceptibility to positive and negative emotional states

Gray's (1981) theory suggests that extraverts and neurotics are differentially sensitive to stimuli that generate positive and negative affect, respectively. From this theory it was hypothesized that efficacy of a standard positive-affect induction would be more strongly related to extraversion than to neuroticism scores, whereas efficacy of a standard negative-affect induction would be more strongly related to neuroticism scores. Positive and negative affect was manipulated in a controlled setting, and the effectiveness of the mood induction was assessed using standard mood adjective rating scales. Results are consistent with the hypothesis that neurotic Ss (compared with stable Ss) show heightened emotional reactivity to the negative-mood induction, whereas extraverts (compared with intraverts) show heightened emotional reactivity to the positive-mood induction. Results corroborate and extend previous findings.     

Individual differences in afterimage persistence: relationships to hypnotic susceptibility and visuospatial skills.

To investigate the moderating role of individual differences in hypnotic susceptibility and visuospatial skills on afterimage persistence, we presented a codable (cross) flash of light to 40 men and 46 women who had been dark adapted for 20 min. In an unrelated classroom setting, subjects had previously been given two standardized scales of hypnotic susceptibility (Harvard Group Scale of Hypnotic Susceptibility, Shor & Orne, 1962; Group Stanford Hypnotic Susceptibility Scale, Form C, Crawford & Allen, 1982) and the Mental Rotations Test (Vandenberg & Kuse, 1978). The first afterimage interval and the afterimage duration correlated significantly with hypnotic responsiveness, supporting Wallace (1979), but did not show the anticipated relationships with mental rotation visuospatial skills. Individuals in the high hypnotizable group had (a) significantly longer afterimage intervals between its first appearance and first disappearance than did those in medium or low groups, as well as (b) significantly longer afterimages between the first appearance and the final disappearance than did those in low groups, but those in medium groups did not differ significantly from the other groups. Discriminant analysis using the afterimage persistence measures classified correctly 65.2% of high hypnotizables, 37.5% of medium hypnotizables, and 54.8% of low hypnotizables. Hypothesized cognitive skills that assist in the maintenance of afterimages and underlie hypnotic susceptibility include abilities to maintain focused attention and resist distractions over time and to maintain vivid visual images.