Spatio-temporal working-memory and short-term object-location tasks use different memory mechanisms

Spatial short-term memory for objects' locations was investigated in a spatial relocation task. During maintenance, dynamic visual noise or spatial tapping were administered as visual or spatial secondary tasks, respectively. Because memory for location should tap the visual component of working memory, a visual but not a spatial secondary task should impair location memory. In fact, neither of the tasks impaired memory (Experiment 1), although the expected dissociation between visual and spatial components was clearly confirmed for a spatio-temporal main task (Corsi test) (Experiment 2). We then contrasted location memory for pictures of objects and of nonsense figures under visual interference. Real objects were relocated much better than nonsense figures, and visual noise was again ineffective (Experiment 3). When spatial tapping was combined with the same material (Experiment 3a), again no influence on memory for locations of objects was observed and only a small influence on remembering nonsense figures. We suggest that the Corsi and the relocation VSWM-tasks use different memory mechanisms. The configuration of objects is reconstructed from perceptual records in an episodic buffer, provided by the same structures that enable visual memory after longer intervals. Rehearsal is not necessary for the persistence of these traces. In contrast, in the Corsi task remembering, a temporal sequence across homogeneous locations needs spatio-temporal marking and therefore active rehearsal of the locations by shifting spatial attention. A spatially demanding secondary task during retention interrupts this rehearsal.     

Time-to-contact estimation of accelerated stimuli is based on first-order information

The goal of this study was to test whether 1st-order information, which does not account for acceleration, is used (a) to estimate the time to contact (TTC) of an accelerated stimulus after the occlusion of a final part of its trajectory and (b) to indirectly intercept an accelerated stimulus with a thrown projectile. Both tasks require the production of an action on the basis of predictive information acquired before the arrival of the stimulus at the target and allow the experimenter to make quantitative predictions about the participants' use (or nonuse) of 1st-order information. The results show that participants do not use information about acceleration and that they commit errors that rely quantitatively on 1st-order information even when acceleration is psychophysically detectable. In the indirect interceptive task, action is planned about 200 ms before the initiation of the movement, at which time the 1st-order TTC attains a critical value.     

MMPI-2 and MCMI-III scores among dutch inpatient substance abusers: Assessing correspondence and cross-cultural equivalence

The Millon Clinical Multiaxial Inventory (MCMI-II and MCMI-III) and the Minnesota Multiphasic Personality Inventory (MMPI-2) were applied to 263 Dutch inpatient substance abusers with multiple psychiatric diagnoses, and the results compared with those of 306 North-American substance abusers studied by Ward (1995). We looked for structural similarity both across groups (per instrument) and across the two instruments (per sample), using principal components analysis and congruence analysis. The component structure found by Ward was partly replicated in the Dutch group, thus cross-validating the use of the two instruments with these patients. Moreover, as found by Ward, the MMPI-2 content and supplementary scales of the Dutch sample proved to be important determinants of the first three MMPI-2 components, adding to convergent validity. Questions remained about the influence of the (dis)continuity of MCMI-II and MCMI-III on the replicability of the MCMI components.     

Signing enhances memory like performing actions

In three experiments, we investigated the influence of the overt performance of signs on memory. Deaf and hearing participants studied lists of action phrases (Experiment 1) or nouns (Experiment 2) under standard verbal instruction, under the instructions to sign the verbal phrase, to symbolically perform the denoted action, or to carry out a prototypical action corresponding to each noun. Higher recall and recognition performances were observed when actions were performed than in the verbal encoding condition, and signing was as effective for memory as was enactment. Thus, overt signing can induce an enactment effect. In contrast, Experiment 3 demonstrated that performing an unrelated action did not. A unique but unrelated action was not memory efficient.     

Effects of Individual Differences on Applicant Perceptions of an Operational Assessment Center

Knowing to what extent applicant reactions are related to stable individual differences and not only to characteristics of a selection procedure is important for the design and administration of the selection procedure and for dealing with applicants. The aim of this study was to explore relationships between individual differences (Big Five, core self‐evaluations, trait affectivity, and general mental ability) and applicants' perceptions of an operational assessment center (AC). Data from 294 applicants revealed that individual difference variables explained significant variance in their perceptions of the AC, even after controlling for self‐rated and actual performance. Based on these results, the nature of the applicant pool should be considered for designing selection procedures, dealing with applicants, and for research purposes.     

Are Happiness and Life Satisfaction Different Across Religious Groups? Exploring Determinants of Happiness and Life Satisfaction

This study explores whether different religions experience different levels of happiness and life satisfaction and in case this is affected by country economic and cultural environment. Using World Value Survey (from 1981 to 2014), this study found that individual religiosity and country level of development play a significant role in shaping people’s subjective well-being (SWB). Protestants, Buddhists and Roman Catholic were happier and most satisfied with their lives compared to other religious groups. Orthodox has the lowest SWB. Health status, household’s financial satisfaction and freedom of choice are means by which religious groups and governments across the globe can improve the SWB of their citizens.     

Response to McDowell

The rationale for the common rejection of classical societal functionalism is that it entails treating a society as an intelligent purposer, capable of directing its own internal organization in furtherance of survival. But a more acceptable alternative account of the origins of a society's functional organization is conceivable: the individual unconsciously recognizes the needs of his group and directs his behaviour so that they are met. The plausibility of this explanation hangs on whether selection between groups occurs to any significant extent, however, and it is therefore on this question that the plausibility of classical societal functionalism itself depends.     

Skills,historical disclosing,and the end of history: A response to our critics

We appreciate the thoughtful responses we have received on ‘Disclosing New Worlds’. We will respond to the concerns raised by grouping them under three general themes. First, a number of questions arise from lack of clarity about how the matters we undertook to discuss ‐ especially solidarity ‐ appear when one starts by thinking about the primacy of skills and practices. Under this heading we consider (a) whether we need more case studies to make our points, and (b) whether national and other solidarities require willingness to die for the values that produce that solidarity. Second, we take up questions concerning the historical character of the skills of entrepreneurs, virtuous citizens, and culture figures. Here we shall (a) emphasize how we distinguish ourselves from earlier writers on these subjects, (b) consider essentialism, relational identities, and exclusion, (c) answer a number of Habermasian concerns raised by Hoy, (d) speak to Taylor's concern regarding the contingency of solidarity and forgetting, and (e) take up Grant's objection that we are both formalists and relativists. Third, we shall take up the concern, raised mostly by Borgmann, that historical disclosing, that is to say history as the West has known it, is over, and that now all that can be done by those who transform the practices is to make them more and more technological.     

Unhappy Self-Esteem: A Meaningful Exception to the Rule

Self-esteem and well-being are often seen as closely related and sometimes even considered conceptually identical. In marked contrast to this association, the focus of this article is on experiences of a high level of self-esteem coexisting with a low level of well-being: unhappy self-esteem. Although these experiences constitute an exception to the general rule, they nevertheless have a theoretically coherent character. In this article, a framework was used in which the self was considered an organized process, and an idiographic assessment procedure—the method of self-confrontation—was called upon. The self-statements of 15 subjects in the Netherlands showing unhappy self-esteem were compared, and the phenomenon was found to clearly refer to anger and opposition.