Category norms as a function of culture and age: comparisons of item responses to 105 categories by american and chinese adults

Understanding how aging influences cognition across different cultures has been hindered by a lack of standardized, cross-referenced verbal stimuli. This study introduces a database of such item-level stimuli for both younger and older adults, in China and the United States, and makes 3 distinct contributions. First, the authors specify which item categories generalize across age and/or cultural groups, rigorously quantifying differences among them. Second, they introduce novel, powerful methods to measure between-group differences in freely generated ranked data, the rank-ordered logit model and Hellinger Affinity. Finally, a broad archive of tested, cross-linguistic stimuli is now freely available to researchers: data, similarity measures, and all stimulus materials for 105 categories and 4 culture-by-age groups, comprising over 10,000 fully translated unique item responses.     

Compound fracture: the role of semantic transparency and morphological headedness

This paper explores the role of semantic transparency in the representation and processing of English compounds. We focus on the question of whether semantic transparency is best viewed as a property of the entire multimorphemic string or as a property of constituent morphemes. Accordingly, we investigated the processing of English compound nouns that were categorized in terms of the semantic transparency of each of their constituents. Fully transparent such as bedroom are those in which the meanings of each of the constituents are transparently represented in the meaning of the compound as a whole. These compounds were contrasted with compounds such as strawberry, in which only the second constituent is semantically transparent, jailbird, in which only the first constituent is transparent, and hogwash, in which neither constituent is semantically transparent. We propose that significant insights can be achieved through such analysis of the transparency of individual morphemes. The two experiments that we report present evidence that both semantically transparent compounds and semantically opaque compounds show morphological constituency. The semantic transparency of the morphological head (the second constituent in a morphologically right-headed language such as English) was found to play a significant role in overall lexical decision latencies, in patterns of decomposition, and in the effects of stimulus repetition within the experiment.     

Referential Form and Memory for the Discourse History

The way we refer to things in the world is shaped by the immediate physical context as well as the discourse history. But what part of the discourse history is relevant to language use in the present? In four experiments, we combine the study of task-based conversation with measures of recognition memory to examine the role of physical contextual cues that shape what speakers perceive to be a part of the relevant discourse history. Our studies leverage the differentiation effect, a phenomenon in which speakers are more likely to use a modified expression to refer to an object (e.g., dotted sock) if they had previously described a similar object (e.g., striped sock) than when they had not described a similar object. Two physical cues—the background that framed the to-be-described pictures and the position of the pictures in the display—were manipulated to alter perceptions about the relevant discourse context. We measured the rate with which speakers modify referring expressions to differentiate current from past referents. Recognition memory measures following the conversation probed what was and was not remembered about past discourse referents and contexts. Analysis of modification rates indicated that these contextual grouping cues shaped perceptions about the relevant discourse context. The contextual cues did not affect memory for the referents, but the memory for past referents was better for speakers than for listeners. Our findings show that perceptions about the relevant discourse history are a key determinant of how language is used in the moment but also that conversational partners form asymmetric representations of the discourse history.     

The Subtle Influence of Check and X Marks: How Symbolic Markings Influence Judgment

Symbols can exert an influence on how we think, feel, and even behave. Here we examine whether symbolic markings serve as primes and influence how people make judgments. We propose that making either a check or an X mark to indicate an opinion can lead people to process the same information differently, thereby influencing the judgment people make. Across four experiments, we find that the check and X marks carry different symbolic associations; people associate check with good and X with bad. We also find downstream consequences of these mental associations. People who make positively connoted check marks (as opposed to negatively connoted X marks) to indicate their judgments are more agreeable toward familiar, controversial social policies as well as market research survey items on values and life styles. Differential symbolic markings with check and X marks seem to shape how people think and make judgments.     

Consuming Entertainment Media: How Media Effects Can Vary by Users’ Controllability

Previous communication studies have focused on how media content influences human aggression. Few studies, however, have been conducted regarding the influence of situational variables on human aggression. Regarding online gaming, the present study examines how game users’ aggression is influenced by two idiosyncratic situational variables: “degree of control” (playing vs. watching) and “degree of interaction” (alone vs. together). The feeling of presence is also examined as a mediator to explicate the mechanism through which these situational variables influence the game users’ levels of aggression. The results demonstrate that degree of control significantly affects users’ aggression. Aggression is increased when players actively participate in the game versus simply watching; situational factors that are associated with the way people engage in interactive media cause short-term shifts in players’ aggression. Implications and future research directions are discussed.     

Cognitive inhibition in depression

Cognitive inhibition is a key mechanism in the regulation of emotion. There is emerging evidence that depression is characterized by deficits in the inhibition of mood-congruent material. These deficits could result in prolonged processing of negative, goal-irrelevant aspects of presented information thereby hindering recovery from negative mood and leading to the sustained negative affect that characterizes depressive episodes. Indeed, it has been suggested that deficits in cognitive inhibition lie at the heart of memory and attention biases in depression, and set the stage for ruminative responses to negative events and negative mood states. A ruminative response style results in a heightened vulnerability to experience episodes of major depression. Recent research has demonstrated that deficient inhibition of negative material is associated with heightened rumination. In this article, we review the depression literature with a focus on studies that investigate cognitive inhibition in depressed participants and in participants who report a history of major depressive episodes. In addition, we summarize neurobiological findings that indicate a strong relation between depression and deficits in inhibition and we take a closer look at the relation of inhibition, rumination and mood regulation.     

The dynamic relation between organizational and professional commitment of highly educated research and development (R&D) professionals

Researchers of the work-related commitment of professionals have investigated the possibility of conflict between organizational and professional forms of commitment. Drawing on the organizational socialization literature, the authors hypothesized that both forms of commitment would change with increasing organizational tenure. Specifically, the authors proposed that the patterns of change of the 2 forms of commitment would be complementary: Organizational commitment would take a U-shaped pattern of change, whereas professional commitment would take an inverse U-shaped pattern. The results, based on data collected from a sample of 204 research and development (R&D) professionals with PhDs, confirmed the U-shaped pattern of organizational commitment and the complementary relation between the 2 forms of commitment during the first 14 months after organizational entry. These findings suggest the importance of maintaining a balance between organizational and professional commitment and provide a method for identifying the critical period for interventions designed to increase retention of R&D professionals during their early organizational socialization.     

Differential contributions of dorsal vs. ventral hippocampus to auditory trace fear conditioning

The effect of excitotoxic lesions of dorsal vs. ventral hippocampus on the acquisition and expression of auditory trace fear conditioning was examined in two studies. In Experiment 1, animals received excitotoxic lesions of either the dorsal or ventral hippocampus or sham surgeries one week prior to conditioning, and were tested 24 h later. In Experiment 2, animals received excitotoxic lesions of either the dorsal or ventral hippocampus or sham surgeries 24 h after training, and were tested one week after surgery. Both pre- and post-training lesions of ventral hippocampus impaired the acquisition and expression, respectively, of auditory trace fear conditioning. Pre-training lesions of dorsal hippocampus had no effect on the acquisition of trace fear conditioning, while post-training lesions of dorsal hippocampus dramatically impaired expression during subsequent testing. Although in some cases animals with lesions of ventral hippocampus exhibited locomotor hyperactivity, it is unlikely that the pattern of observed deficits can be attributed to this effect. Collectively these data suggest that the dorsal and ventral hippocampus may contribute differentially to the mnemonic processes underlying fear trace conditioning.     

Covariances between regression coefficient estimates in a single mediator model

This study presents formulae for the covariances between parameter estimates in a single mediator model. These covariances are necessary to build confidence intervals (CI) for effect size measures in mediation studies. We first analytically derived the covariances between the parameter estimates in a single mediator model. Using the derived covariances, we computed the multivariate‐delta standard errors, and built the 95% CIs for the effect size measures. A simulation study evaluated the accuracy of the standard errors as well as the Type I error, power, and coverage of the CIs using various parameter values and sample sizes. Finally, we presented a numerical example and a SAS MACRO that calculates the CIs for the effect size measures.