Relations between mental performance and reaction time: New aspects of an old problem

The relation between simple and complex reaction time and psychometrically determined mental performance was reexamined with 486 subjects of above-average intelligence. Various standardized tests measuring aspects of cognitive ability, memory and ability to concentrate were used. Simple and complex reaction times were measured using the Klebelsberg modification of the Mierke apparatus. Correlations between complex reaction time and mental performance as observed by other investigators were mostly confirmed. We found, however, the strongest and most consistent correlations with tests measuring short-term memory; ability to concentrate and spatial ability. On the other hand, tests known and shown again in this paper to load highly on Spearman's general factor g, such as verbal abilities; combinatoric thinking; abstraction; or calculation gave only trivial, and, in most cases, nonsignificant correlations with complex reaction time. We even observed a negative (though, for our data, not significant) correlation between g-loadings of subtests and their correlations with complex reaction time for the only complete standardized intelligence test used in this study, the “Intelligenz-Strukturtest (Amthauer).” Therefore, this study does not support the hypothesis that fast processing of complex information as measured by complex reaction time is the decisive component of the general factor of intelligence g.     

New insights into the regulation of synaptic plasticity from an unexpected place: Hippocampal area CA2

The search for molecules that restrict synaptic plasticity in the brain has focused primarily on sensory systems during early postnatal development, as critical periods for inducing plasticity in sensory regions are easily defined. The recent discovery that Schaffer collateral inputs to hippocampal area CA2 do not readily support canonical activity-dependent long-term potentiation (LTP) serves as a reminder that the capacity for synaptic modification is also regulated anatomically across different brain regions. Hippocampal CA2 shares features with other similarly "LTP-resistant" brain areas in that many of the genes linked to synaptic function and the associated proteins known to restrict synaptic plasticity are expressed there. Add to this a rich complement of receptors and signaling molecules permissive for induction of atypical forms of synaptic potentiation, and area CA2 becomes an ideal model system for studying specific modulators of brain plasticity. Additionally, recent evidence suggests that hippocampal CA2 is instrumental for certain forms of learning, memory, and social behavior, but the links between CA2-enriched molecules and putative CA2-dependent behaviors are only just beginning to be made. In this review, we offer a detailed look at what is currently known about the synaptic plasticity in this important, yet largely overlooked component of the hippocampus and consider how the study of CA2 may provide clues to understanding the molecular signals critical to the modulation of synaptic function in different brain regions and across different stages of development.     

Three-component commitment and turnover: An examination of temporal aspects

SEM (N = 182) was employed to examine implied temporal aspects of three-component commitment theory as they relate to turnover. Consistent with expectations, affective commitment predicted subsequent turnover in an immediate and relatively short interval of 4 months, but failed to do in a much longer but outlying interval of 5–12 months. Side bet commitment failed to predict turnover in the short, immediate interval, but did so robustly over the longer albeit more distant interval. Normative commitment predicted turnover in neither the near term nor outmonths. Turnover rates for employees with low affective commitment were much higher than those with high affective commitment in the first quarter of a 1-year monitoring period, but subsequent turnover rates were roughly the same for the two groups. In contrast, turnover for employees with low side bet commitment was only slightly higher than the high side bet group in the first quarter, but over the remainder of the year cumulative turnover for the low side bet group exceeded that for the high side bet group by increasingly large margins. These results are consistent with theory suggesting that decrements in affective commitment (1) often occur suddenly and just prior to employees' leaving and (2) reflect general disaffection and an impetus to leave that is already exists at the point of attitude measurement. Results comport with theory describing side bet commitment as (1) an appraisal of leaving costs that, in the aggregate, are unlikely to change suddenly and (2) a relatively stable attitude that serves primarily to prevent turnover should some independent motivation to leave arise.     

Organizational commitment and job performance: Examining the moderating roles of occupational commitment and transformational leadership

To address why the relationship between affective organizational commitment and job performance varies, we draw on the theorization of Meyer, Becker, and Vandenberghe to propose moderation of affective occupational commitment and transformational leadership, separately and interactively. Data collected from 398 employees and their supervisors supported our hypotheses. Specifically, affective organizational commitment was more strongly associated with job performance for employees with high occupational commitment, or when a supervisor's transformational leadership was high. Importantly, in a moderated mediation relationship, we found the effect of transformational leadership on the relationship between affective organizational commitment and job performance for employees with high occupational commitment was contrary to its effect on employees with low occupational commitment. Given the significant roles of both commitments as discussed in the present study, we offer suggestions on how to consider these factors during the assessment and selection of personnel and role assignment.     

Contextual relative temporal duration judgment: an investigation of sequence interruptions

How do listeners judge relative duration? There currently are three primary classes of proposed timing mechanisms: interval based (judgments of discrete events), beat based (judgments of beat synchrony), and oscillator based (judgments of relative phase or synchrony). In the present research, these mechanisms were examined in terms of predictions both about how an induction sequence of preceding intervals affects relative temporal duration comparison in a simple, two-interval task and about how a pause (e.g., an interstimulus interval) within the presented sequence affects relative temporal duration judgment. Results indicated that a relative temporal judgment was best when all intervals preceding the to-be-judged interval were equal in duration to the to-be-judged interval. Results also indicated that whereas short pauses significantly impair a relative temporal duration judgment, long pauses generally do not reduce the effectiveness of the induction sequence. The results are not entirely consistent with current conceptualizations of any of the proposed mechanisms but can be fully accommodated with simple modifications to the oscillator-based mechanism.     

Investigating the attentional demands of recognition memory: Manipulating depth of encoding at study and level of attention at test

Two experiments investigated the effects of divided attention at test after manipulating levels of processing at study. In Experiment 1 items were studied either intact or as anagrams. In Experiment 2 items were studied with either full or divided attention (DA). In both experiments participants carried out a recognition test with either full or divided attention. Analysis of remember and know responses revealed that DA at test had no effect on remember responses to anagrams or to items studied with full attention. In contrast, Know responses decreased with DA at test, and this occurred for items studied in both deep and shallow encoding conditions. The present study confirms recent findings (Knott & Dewhurst, 2007a) that knowing can rely on more controlled retrieval processes, whereas remembering can rely on more automatic retrieval processes. Differences in the controlled processes associated with recollection and familiarity and remember and know responses are discussed.     

Endogenous modulation of compatibility effects: an Investigation into the temporal dynamics

Compatibility effects (CEs) arise when multiple stimuli fall within the visual field, providing an indication of stimulus processing. Previous research demonstrated that exogenous factors (e.g., luminance) influence the magnitude of CEs and their time course. The current research investigated the influence of endogenous factors. We used a flanker paradigm with a variable temporal delay (SOA) between a flanker and a subsequent central stimulus appearing. To manipulate endogenous factors, we required responses to the flanker on either half or all of the trials. The results indicate that increasing the task relevance of the flanker strengthened the initial positive CE (measured at short SOAs), consistent with past findings related to exogenous factors. However, at longer SOAs, the CE did not reverse into a negative CE, which stands against findings related to exogenous factors. These results indicate that CEs are subject to endogenous modulation, but the temporal dynamics do not mimic exogenous modulation.     

Revisiting the self-interest versus values debate: The role of temporal perspective

Scholars of public opinion have struggled to explain why people often vote against their economic self-interest in favor of a value-based rationale. Based on Construal Level Theory (Liberman, Trope, & Stephan, 2007), we argue that both values and material self-interest affect social and political attitudes, but in different temporal contexts. Specifically, because material self-interest is more concrete and applicable to everyday concerns, we predict that it should carry more weight with regard to judgments made in the context of the near future. In contrast, values, which are more abstract by nature, should carry greater weight for judgments made in the distant future. In an experimental test of this hypothesis, we presented participants with a fictitious policy that affected their pocketbooks in an otherwise value-laden domain. We found that people's financial self-interest more strongly predicted attitudes toward a proposal to increase tuition in the near condition, whereas antiegalitarian values more strongly predicted attitudes in the far condition. These findings offer new insights into the symbolic politics debate.     

A new test of an old hypothesis: a quantification of sequence in the Rorschach

Rorschach interpretation often assumes that successive responses are not independent of one another but rather that they are part of a series of interconnected events. In this study, methods that have been used to analyze event sequence data were applied to Rorschach protocols. Results from a nonclinical group of 102 university students showed that location scores on successive responses were repeated more frequently than was predicted by chance. There was also a tendency for subjects to make transitions from larger to smaller or more detailed areas of the inkblot on successive responses. In addition, we found that subjects tended to make transitions from more adequate to less adequate use of form, and that the unusual and minus form categories tended to be repeated. A modest association between transition frequencies and individual differences in anxiety, but not between transition frequencies and depression or overall symptomatology, was demonstrated.     

New insights into the formation and duration of flashbulb memories: Evidence from medical diagnosis memories

Flashbulb memories are vivid and salient memories for the moment one hears about a surprising, emotional, and significant event. The current research examined flashbulb memories for a loved one's medical diagnosis, focusing on individual and situational factors associated with memory development and endurance over time. An online survey collected memory narratives and subjective ratings from 309 mothers who received a diagnosis of Down syndrome for their child. Time since diagnosis ranged from 1 month to 52 years. Using two independent measures, the Flashbulb Memory Checklist and the Autobiographical Memory Questionnaire, we found that a majority of diagnosis memories qualified as flashbulb memories, even 20 years or more after the event. Importantly, support from the medical staff at diagnosis emerged as a critical variable related to flashbulb memory development and the persistence of these flashbulb memories over time.     

Antecedents and outcomes of unit cohesion and affective commitment to the Army

Group cohesion and affective commitment have shown to have critical relevance to military organizations in particular. The relationship between cohesion and affective commitment is established, and the two constructs share a number of common organizational antecedents and employee outcomes. The authors explored the relationship between cohesion and affective commitment in a model that incorporates antecedents (effectiveness of immediate leadership and procedural justice) and consequences (organizational citizenship behaviors [OCBs] and turnover intentions) common to both. Respondents (N = 714, 102 women, 612 men) were Canadian Army personnel. The models suggest that cohesion partially mediates the relationships between (a) perceptions of immediate leadership and affective commitment to the Army and (b) perceptions of unit procedural justice and affective commitment to the Army. Furthermore, affective commitment to the Army partially mediates the relationship between unit cohesion and turnover intentions but fully mediates the relationship between unit cohesion and OCBs. This model helps explain some common variance between unit cohesion and organizational affective commitment.     

Gender,influence tactics,and job characteristics preferences: New insights into salary determination

The purpose of this study is to investigate whether gender retains its significance as a predictor of salary, after controlling for the well-documented influences of human capital accumulation and job level, and the less well-researched effects of both influence tactics and job characteristic preferences. Second, this study investigates whether similar factors predict salary attainment for males and females. Finally, the question of whether males and females differ in all of the hypothesized variables of interest is investigated. Exempt staff at a state university are surveyed. Of those respondents, 52.8% are female and 47.2% are male, the majority of whom are white, with other ethnic and racial categories representing less than one-fifth of the sample. After controlling for all other hypothesized influences, gender retains its significance as a predictor of salary. A significant interaction between job level and gender indicates that females in high-level jobs earn significantly less than males in high level jobs. Human capital variables and two job characteristics preferences also displayed significant main effects in predicting salary.     

New insights into the impact of digital signage as a retail atmospheric tool

This article investigates the previously little‐researched role of digital signage (DS) in retail atmospherics, using an environmental psychology framework, drawing support from the Limited Capacity Model of Mediated Message Processing (LCM). DS consists of screen displays in public spaces showing video. The method consisted of a structured questionnaires quasi‐experiment (n = 357), comparing before and after DS installation against an unchanged control mall. Results demonstrate the effectiveness of DS, which has a positive effect on shoppers' approach behaviors such as spending, mediated by perceptions of the retail environment and positive affect. Results are limited as the DS screens content was information based, whereas according to LCM, people pay more attention to emotion‐eliciting communications. The results have practical implications as DS appeals to employed shoppers. This study contributes to theory by providing a rare longitudinal environmental psychology study of the effects of an atmospheric stimulus on real shoppers in a real retail context. Copyright © 2012 John Wiley & Sons, Ltd.     

Investigating the role of time in affective forecasting: temporal influences on forecasting accuracy

Using extensive diary data from people taking their driver's license exam, the authors investigated the role of time in affective forecasting accuracy. Replicating existing findings, participants grossly overestimated the intensity and duration of their negative affect after failure and only slightly overestimated the intensity and duration of their positive affect after success. Extending existing findings, participants accurately predicted a decrease of their affective reactions over time but underestimated the speed with which this decrease would occur. In addition, they showed greater forecasting accuracy for positive affect than negative affect when the exam was distant and greater forecasting accuracy for negative affect than positive affect when the exam was close. The motivational processes underlying these findings are being discussed.     

Communication,conflict, and commitment: insights on the foundations of relationship success from a national survey

The key relationship dynamics of communication, conflict, and commitment were investigated using data from a randomly sampled, nationwide phone survey of adults in married, engaged, and cohabiting relationships. Findings on communication and conflict generally replicated those of studies using more indepth or objective measurement strategies. Negative interaction between partners was negatively associated with numerous measures of relationship quality and positively correlated with divorce potential (thinking or talking about divorce). Withdrawal during conflict by either or both partners, though quite common, was associated with more negativity and less positive connection in relationships. The most frequently reported issue that couples argue about in first marriages was money, and in re-marriages it was conflict about children. Overall, how couples argue was more related to divorce potential than was what they argue about, although couples who argue most about money tended to have higher levels of negative communication and conflict than other couples. Further, while the male divorce potential was more strongly linked to levels of negative interaction, the female was more strongly linked to lower positive connection in the relationship. Consistent with the commitment literature, higher reported commitment was associated with less alternative monitoring, less feeling trapped in the relationship, and greater relationship satisfaction.     

Measures of feeling-of-knowing accuracy: A new look at an old problem

Two ordinal measures of feeling-of-knowing performance appropriate for n × n data arrays are reviewed. Goodman and Kruskal's gamma provides a measure of association between recognition performance and feeling-of-knowing judgements. The Hamann coefficient provides a measure of agreement accuracy. The relative strengths and weaknesses of each measure are compared at length. A proof is provided, which reveals a lack of one-to-one relation between the two and suggests that they may be independent under most circumstances. It is concluded that both measures should be reported together as complementary indices as each captures a different facet of feeling-of-knowing performance. Alternative measures for gamma and the Hamann coefficient are considered and a number of recommendations are made for future research.