Investigating the output monitoring component of event-based prospective memory performance

The goal of this study was to augment the standard event-based prospective memory paradigm with an output monitoring component. That component involves memory for past actions and, in the context of prospective memory, is largely responsible for repetition and omission errors. The modified paradigm also provides an index of what people believe to be true concerning their past prospective memory performance. More elaborate prospective responses decreased forgetting that an intention had been fulfilled, whereas contextual change increased forgetting. In Experiments 1-3, people often reported that they had fulfilled an intention on a previous occasion when they actually had not, but distinctive responses reduced that error in Experiment 4. Therefore, people's beliefs about their past performance can influence the incidence of repetition and omission errors in event-based prospective memory tasks.     

Directed remembering: subliminal cues alter nonconscious memory strategies

Much research on memory function has focused on changes in recognition performance brought about by differences in the processes engaged during encoding. In most of this work, participants either receive explicit instructions to remember particular items or they perform orienting (i.e., encoding) tasks that support different levels of memory performance. In daily life, however, the retention or dismissal of information often occurs without conscious intent, thereby suggesting an alternative, nonconscious route through which purposive remembering and forgetting can occur. Based on this line of reasoning, we speculated that recognition performance in a standard item-based forgetting paradigm may be moderated by subliminal cues that trigger the automatic activation of different mnemonic strategies. We report the results of two experiments that supported this prediction. In each experiment, the basic item-based forgetting effect was replicated, but via the subliminal presentation of "remember" and "forget" cues. In addition, cue-dependent differences in memory performance were traced to the operation of a covert rehearsal mechanism during encoding. We consider the implications of these findings for the non-conscious#10; operation of memory processes in everyday life.     

Computer-assisted communication and team decision-making performance: the moderating effect of openness to experience

This study examined the effects of computer-assisted communication on team decision-making performance as a function of the team's openness to experience. Seventy-nine teams performing a multiple-cue probability learning task were randomly assigned to 1 of 2 experimental conditions: (a) verbal communication or (b) computer-assisted communication (which combined verbal and computerized communication). The results indicated that access to computer-assisted communication improved the decision-making performance of teams, but only when the teams were high in openness to experience. This effect was observed using both global openness and more specific openness facets, as well as a variety of team-level aggregation strategies. Moreover, the beneficial effects of openness in computer-assisted conditions were mediated by the efficiency with which teams integrated verbal and computerized forms of communication.     

A pilot study of a dynamical systems approach to examining changes in static balance of adolescents

In a dynamical systems model, movement patterns are dictated by several variables, called control parameters. The goal of this pilot study was to assess whether changes on a static balance task can be described by a dynamical systems model with body inertial properties as one of the potential control parameters. Three aspects of a dynamic system were examined in relation to a 2-ft. static balance task: a relation between the changes in the balance pattern and the control parameter, a relation between the stability of the balance pattern and the stability under perturbed conditions (1-ft. balance task), and during the perturbation lack of relation between the balance pattern and the control parameters. Nine adolescent boys, 15.3 +/- 1.0 yr. old were examined twice over a 14-wk. period. During each testing session, participants' body mass, moments of inertia, and radius from the ankle to the center of mass were calculated, after which 1- and 2-ft. balance tasks were performed. Center of pressure coordinates were recorded using a Kistler force plate. The body parameters were used to calculate the natural frequency of the body to represent the control parameter. Significant relations among all three aspects of a dynamic system examined in both the lateral and anterior-posterior axes were found. This investigation was designed for exploratory purposes and limited to correlational analysis; therefore, no concrete conclusions could be drawn. The results, however, suggest a dynamical systems approach to the study of static balance patterns may be possible.     

The influence of partial-match cues on event-based prospective memory

In event-based prospective memory tasks people form an intention to respond when an environmental cue signals that conditions are appropriate to fulfil an intended activity. In the ongoing activity the authors embedded partial-match cues that only partially, but not completely, satisfied the conditions required to make a prospective response. The consequence of encountering these partial-match cues was to increase responses to appropriate prospective memory cues encountered later. This outcome occurred both with semantic and orthographic cues, but only the former led to longer processing latencies of the partial-match cues. This asymmetry suggests that partial-match cues may not need to be processed consciously in order to benefit event-based prospective memory. A parametric manipulation of the number of partial-match cues resulted in numerically but not statistically better prospective memory. Consequently, partial-match cues may function as overt reminders of the intention to respond or they may serve to engage participants in self-initiated remindings of the intention.     

Regional variation in the inversion effect for faces: differential effects for feature shape, feature configuration, and external contour

Faces are perceived via an orientation-dependent expert mechanism. We previously showed that inversion impaired perception of the spatial relations of features more in the lower face than in the (more salient) upper face, suggests a failure to rapidly process this type of structural data from the entire face. In this study we wished to determine if this interaction between inversion and regional salience, which we consider a marker for efficient whole-face processing, was specific to second-order (coordinate) spatial relations or also affected other types of structural information in faces. We used an oddity paradigm to test the ability of seventeen subjects to discriminate changes in feature size, feature spatial relations, and external contour in both the upper and lower face. We also tested fourteen subjects on perception of two different types of spatial relations: second-order changes that create plausible alternative faces, and illegal spatial changes that transgress normal rules of facial geometry. In both experiments we examined for asymmetries between upper-face and lower-face perceptual accuracy with brief stimulus presentations. While all structural changes were less easily discerned in inverted faces, only changes to spatial relations showed a marked asymmetry between the upper and lower face, with far worse performance in the mouth region. Furthermore, this asymmetry was found only for second-order spatial relations and not illegal spatial changes. These results suggest that the orientation-dependent face mechanism has a rapid whole-face processing capacity specific to the internal second-order (coordinate) spatial relations of facial features.     

Gender differences in memory for the appearance of others

Five studies investigated gender differences in the accurate recall of the appearance of others. The greater interpersonal orientation and interpersonal sensitivity of women were predicted to give women an advantage over men in appearance accuracy. Under both directed- and incidental-learning conditions, women more accurately recalled information concerning the appearance of their social targets than did men, participants' memory for the appearance of female targets was more accurate than it was for male targets, and neither gender was found to be a relative advantage in recalling the appearance of same-gender targets. The motivational and knowledge-based factors that might underlie a gender difference in appearance accuracy are discussed.     

Gender moderates the effects of independence and dependence desires during the social support process

This investigation examined the roles of gender and desires for independence and dependence in the support process. We assessed 118 older adults who reported needing help with at least 1 activity of daily living as a result of illness or health problems. Men with a high desire to be independent responded negatively to receiving support from their social network. Women's outcomes were generally unaffected by their independence and dependence desires. These results indicate that gender and desires for independence and dependence should be taken into account when examining the social support process, especially in men with health problems.     

Criterion-related validity of the three-factor model of psychopathy: personality, behavior, and adaptive functioning

The Psychopathy Checklist-Revised (PCL-R) has been conceptualized as indexing two distinct but correlated factors. Previous research has established that these factors demonstrate distinct patterns of relations with external criteria. However, more recent findings suggest that the PCL-R psychopathy construct may encompass three distinguishable factors, reflecting affective, interpersonal, and behavioral symptoms. Here, we evaluated the validity of this newer three-factor model of the PCL-R factors with reference to external criteria from the domains of personality, antisocial behavior; and adaptive functioning in a sample of 310 incarcerated offenders. The interpersonal factor was related to social dominance, low stress reactivity, and higher adaptive functioning; the affective factor was correlated with low social closeness and violent offending; and the behavioral factor was associated with negative emotionality, disinhibition, reactive aggression, and poor adaptive functioning. These findings provide support for the convergent and discriminant validity of these psychopathy facets.