Individual differences and state effects on mind-wandering: Hypnotizability, dissociation, and sensory homogenization

Consciousness alterations can be experienced during unstructured, monotonous stimuli. These effects have not been linked to particular cognitive operations; individual differences in response to such stimulation remain poorly understood. We examined the role of hypnotizability and dissociative tendencies in mind-wandering (MW) during a sensory homogenization procedure (ganzfeld). We expected that the influence of ganzfeld on MW would be more pronounced among highly hypnotizable individuals (highs), particularly those high in dissociative tendencies. High and low hypnotizables, also stratified by dissociation, completed the sustained attention to response task during ganzfeld and control conditions. High dissociative highs made more commission errors during ganzfeld, suggesting increased MW, whereas the other groups displayed the opposite pattern. Increases in commission errors from the control condition to ganzfeld were associated with more alterations in consciousness and negative affect, but only among highs. Sensory homogenization had opposite effects on MW depending on the interaction of hypnotizability and dissociation.     

A Psycho-linguistic Study on Adult Playfulness: Its Hierarchical Structure and Theoretical Considerations

By means of a linguistic corpus analysis, statements were derived that reflect trait-like characteristics of playful adults. These were given to a sample of 240 adults who also completed two measures of adult playfulness. Using Goldberg’s (J Res Pers 40:347–358, 2006) top-down approach, the hierarchical factor structure of playfulness in this data set was examined. A solution with seven factors fits the data well and could be clearly interpreted. The retrieved factors were (1) cheerful-engaged; (2) whimsical; (3) impulsive; (4) intellectual-charming; (5) imaginative; (6) lighthearted; and (7) kind-loving. The two playfulness measures did not cover all of these dimensions. The intellectual-charming and the kind-loving variants of playfulness were less well represented in these instruments. The study contributes to the basic question of what factors underlie playfulness and suggests that there are aspects of adult playfulness that were hitherto less well described.     

Psycho-physiological impact on women with chronic fatigue syndrome in the context of their couple relationship

The quality of dyadic adjustment is likely to play an important role in patients' relational problems and may also be associated with the clinical presentation of chronic fatigue syndrome (CFS) symptoms. The objective of this study was (1) to determine whether CFS patients and their partners have similar perceptions of their dyadic adjustment and (2) to evaluate whether the influence of dyadic satisfaction in women with CFS, as well as common psychological parameters such as anxiety, may correlate with physiological responses at rest and/or when performing very low intensity exercise. Forty females with CFS and their partners completed the Dyadic Adjustment Scale, the State-Trait Anxiety Inventory, and the Hospital Anxiety and Depression scale. The cardiovascular adaptation of patients was evaluated during resting conditions and on a precalibrated cycle ergometer while performing very low intensity exercise. Patients and partners had similar perceptions of their marital relationship. Both at rest and during very low workload, various physiological parameters in the patient group showed statistical correlations with certain psychological parameters. Several psychological variables, such as anxiety and dyadic adjustment, were associated with the cardioventilatory response monitored at rest and during very low intensity exercise. Further studies are needed to determine the nature of this association.     

Investigating the true rate of physical intimate partner violence: A review of nationally representative surveys

This review systematically investigates rates of physical intimate partner violence for both sexes in international samples. Surveys that accessed nationally representative samples, used gender inclusive methodology and neutral contexts are reviewed to determine 12-month and lifetime victimization and perpetration rates. Discrepancies between international rates, and the impact that gender equality may have upon these differences is also investigated. Electronic databases were systematically searched to identify surveys that met inclusion criteria. Eleven surveys were reviewed. Of these, Family Violence surveys had the highest methodological quality and showed equal rates for both sexes. Surveys of lesser quality typically showed higher female victimization and male perpetration rates. Countries at the extremes of gender empowerment measure scores differed in their patterns of rates. Gender equality in the US was associated with symmetry for the sexes, and inequality in Uganda associated with higher female victimization. However, as countries tended to use different methods to investigate the problem it was not possible to compare the effects of gender equality on differences in international rates of IPV. It is concluded that survey methodology needs to be consistent across nations, and specifically target family violence if true rates are to be determined and compared across the globe.     

Recognition memory deficits in mild cognitive impairment

ABSTRACT There is no agreement on the pattern of recognition memory deficits characteristic of patients diagnosed with mild cognitive impairment (MCI). Whereas lower performance in recollection is the hallmark of MCI, there is a strong controversy about possible deficits in familiarity estimates when using recognition memory tasks. The aim of this research is to shed light on the pattern of responding in recollection and familiarity in MCI. Five groups of participants were tested. The main participant samples were those formed by two MCI groups differing in age and an Alzheimer's disease group (AD), which were compared with two control groups. Whereas one of the control groups served to assess the performance of the MCI and AD people, the other one, composed of young healthy participants, served the purpose of evaluating the adequacy of the experimental tasks used in the evaluation of the different components of recognition memory. We used an associative recognition task as a direct index of recollection and a choice task on a pair of stimuli, one of which was perceptually similar to those studied in the associative recognition phase, as an index of familiarity. Our results indicate that recollection decreases with age and neurological status, and familiarity remains stable in the elderly control sample but it is deficient in MCI. This research shows that a unique encoding situation generated deficits in recollective and familiarity mechanisms in mild cognitive impaired individuals, providing evidence for the existence of deficits in both retrieval processes in recognition memory in a MCI stage.     

Validation d’une Échelle de Frustration des Besoins Psychologiques au Travail (EFBPT)

The purpose of the three present studies was to adapt in French in the work context a questionnaire developed by Bartholomew, Ntoumanis, Ryan, and Thøgersen- Ntoumani (2011) designed to assess thwarting of the needs for competence, autonomy, and relatedness. Exploratory (Study 1) and confirmatory analyses (Study were conducted among French workers. These studies demonstrated an acceptable internal consistency and confirmed the three-factor structure of the questionnaire (i.e., EFBPT). In addition, the construct validity of the scale was also corroborated in Study 3.     

Brain oscillatory activity associated with task switching and feedback processing

In this study, we sought to dissociate event-related potentials (ERPs) and the oscillatory activity associated with signals indicating feedback about performance (outcome-based behavioral adjustment) and the signals indicating the need to change or maintain a task set (rule-based behavioral adjustment). With this purpose in mind, we noninvasively recorded electroencephalographic signals, using a modified version of the Wisconsin card sorting task, in which feedback processing and task switching could be studied separately. A similar late positive component was observed for the switch and correct feedback signals on the first trials of a series, but feedback-related negativity was observed only for incorrect feedback. Moreover, whereas theta power showed a significant increase after a switch cue and after the first positive feedback of a new series, a selective frontal beta–gamma increase was observed exclusively in the first positive feedback (i.e., after the selection of the new rule). Importantly, for the switch cue, beta–alpha activity was suppressed rather than increased. This clear dissociation between the cue and feedback stimuli in task switching emphasizes the need to accurately study brain oscillatory activity to disentangle the role of different cognitive control processes.