无关信息对注意控制的影响

本研究采用眼动技术,通过两个实验探讨不同加工水平的任务无关信息对注意控制中不同成分的影响。结果表明,无关信息对注意警戒和定向的影响更为明显,不论是在知觉水平（运动方向）上,还是在概念水平（语义）上,无关信息均产生阻碍效果;但语义信息比知觉水平信息的干扰作用出现的更晚。无关信息对执行过程的影响与无关信息性质有关,同类别无关信息作用更加明显。     

Effects of attention and external stimuli on duration estimation under aprospective paradigm

The study examined whether there are two independent cognitive factors affecting duration estimation. In two experiments, we manipulated simultaneously and independently two variables, namely, the level of attention to the lapse of time and the quantity of perceived changes, and examined their effects on duration estimation under a prospective paradigm. The duration was estimated to be longer when subjects attended to the lapse of time than when they attended to tasks during the target interval (Experiments 1 and 2). The characteristics of external stimuli irrelevant to the tasks, namely, the rate of presentation of sounds (Experiment 1) and the velocity of moving dots (Experiment 2), affected duration estimation, even though the attention level was little changed by these stimuli. These findings suggest that there are at least two independent cognitive factors that affect duration estimation.     

Linking dimensions and dynamics in psychopathology research: An example using DSM-5 instruments

The DSM-5 includes two measures to assess dimensions of personality pathology (Personality Inventory for DSM-5; PID-5) and cross-cutting symptoms of psychopathology (DSM-5 Cross-cutting Symptom Measure; CCS). Few studies have evaluated these measures in an ecologically valid context. Participants (N = 248, student sample) completed self-report versions of the DSM-5 measures, and then completed a two-week daily diary of internalizing and externalizing outcomes. The CCS scales evidenced convergent and discriminant validity with these outcomes, PID-5 Negative Affectivity and Detachment were related to internalizing outcomes, and PID-5 Antagonism was related to externalizing outcomes. We also demonstrated the benefit of linking static dimensions to temporally-dynamic processes by examining how PID-5/CCS dimensions moderated the within-person associations among daily cognitive distortions and internalizing and externalizing outcomes.     

A within-person theoretical perspective in sales research: outlining recommendations for adoption and consideration of boundary conditions

Abstract

In the sales literature it is standard practice for researchers to collect cross-sectional data from multiple salespeople, and to compare those salespeople on the data obtained. This between-person approach is suitable for research aiming to draw conclusions between salespeople. However, many salesperson processes are dynamic and vary within salespeople over time, requiring datasets with repeated-measures. This article highlights the need to adopt a within-person theoretical perspective in sales research. Critically, the article shows how our present understanding of boundary conditions may change depending on whether a between-person or within-person level of analysis is adopted. Using examples from the sales literature, we show how the practical implications from between-persons research designs do not necessarily generalize to the within-person level. Further, we explain the methodological and analytical considerations that researchers must account for when undertaking within-person research. Furthermore, the article provides decision criteria that help to identify when within-person analysis should be conducted, outlining analysis tools that are capable of correctly estimating within-person effects without bias. Examples of how within-person research can enhance theory within future sales research, and how within-person research may influence management implications are also discussed. Finally, potential remedies to within-person research barriers are given.     

Dealing with Dynamic Decision Problems when Knowledge of the Environment Is Limited: An Approach Based on Goal Systems

We experimentally analyzed decision procedures for dealing with a dynamic decision‐making problem in which only qualitative information about the deterministic dynamics of the environment was available to participants. A participant's task was to maximize long‐term profit in a computer‐simulated monopoly market featuring delays and inertia. The design enabled a goal‐system‐based procedure, whereby a participant could select one or several short‐term variables to be controlled (goal variables) and chose target values (aspiration levels) for each of them over a total of 50 periods. We report results based on a sample of 63 participants on the formation of goal systems and the process of aspiration adaptation. Our main findings are, first, that more frequently selecting goal systems that adequately reflect the causal structure of the underlying model is positively correlated with long‐term profit; second, that goal persistence, a measure of a participant's tendency to stick to the current goal system, is positively correlated with long‐term profit; and third, that aspiration levels tend to be adapted in strong agreement with certain basic principles of a benchmark model of aspiration adaptation. Our study thus suggests and provides empirical foundation for an approach to dealing with complex dynamic decision problems based on neither optimization nor learning. Copyright © 2011 John Wiley & Sons, Ltd.     

Anxiety,anger and depression: Relationships at the trait level

Abstract

The relationship between anxiety and depression has been extensively researched at the state and clinical syndrome levels. However, relatively few studies have directed their attention to the interrelations between the constructs at the trait level. The present two studies investigated the interrelationships between anxiety, anger and depression at the trait level in nonclinical, subclinical and clinical samples. The results showed anxiety and depression to be highly correlated in students, adults, medical and psychiatric in-patients. As to the relationship of anger with both anxiety and depression, results, especially between anxiety and anger, were likewise significant although much weaker than commonly reported at the affective state level. Moreover, partial correlations suggested the results on the anger-depression relationship to be mainly due to the mediating (causal) influence of anxiety. The results are discussed with reference to the discrepancy of distinctions commonly made between the constructs at the theoretical level and lack of such distinction found at the empirical level. The possible mediating role of both trait-anxiety and trait-anger-in in the development of a depressive disposition is offered as an alternative explanation for the interrelatedness of the three constructs at the trait level.     

“Object Categorization: Reversals and Explanations of the Basic-Level Advantage” (Rogers & Patterson, 2007): A simplicity account

T. T. Rogers and K. Patterson (2007), in their article “Object Categorization: Reversals and Explanations of the Basic-Level Advantage” (Journal of Experimental Psychology: General, 136, 451–469), reported an impressive set of results demonstrating a reversal of the highly robust basic-level advantage both in patients with semantic dementia and in healthy individuals engaged in a speeded categorization task. To explain their results, as well as the usual basic-level advantage seen in healthy individuals, the authors employed a parallel distributed processing theory of conceptual knowledge. In this paper, we introduce an alternative way of explaining the results of Rogers and Patterson, which is premised on a more restricted set of assumptions born from standard categorization theory. Specifically, we provide evidence that their results can be accounted for based on the predictions of the simplicity model of unsupervised categorization.     

On the Nature of the Probe Reaction-Time Task to Uncover the Attentional Demands of Movement

McLeod (1980) reported some findings which showed that no phase of a movement was more attention-demanding than the other phases, contrary to all the results previously reported (e.g., Ells, 1973; Glencross, 1980). However, McLeod used a paradigm in which the two tasks were serial. Each task consisted of a series of 50 reaction time (RT) trials and/or 50 aiming movement trials. In addition to this, the interval of time between a response and the following signal within each series was constant. In order to try to replicate McLeod’s findings, two experiments were conducted in which the response-signal interval was manipulated. The hypothesis was that time certainty associated with a constant interval would facilitate the allocation of time and would thus artificially reduce the interference between tasks. In Experiment I, manual responses were used for the RT task; in Experiment II, they were vocal. Manipulation of the response-signal interval does not change one of the conclusions reached by McLeod: when the RT task involves vocal responses and the results on the RT task are analyzed in terms of response rather than stimulus arrival during the movement, then there is no phase of the movement which is more attention-demanding than the other phases. However, the results of Experiment II in which both the vocal RT task and the movement task significantly deteriorated in the dual-task condition were taken as an indication that the movement studied involved central attentional demands.     

Age,Gender, and Level of Activity as Moderators of Personal Incentives to Physical Activity in Israel

The authors conducted an exploratory study with Israeli adults examining their personal incentives for physical activity (e.g., appearance, weight management). The participants formed a sample of 379 physically active Israelis, aged 20-89 years, divided into 3 age groups and 3 levels of activity. The authors found a similar profile for men and women for most incentives, with men scoring more highly than did women on only competition and fitness. Participants in the highest level of activity attributed greater importance to all incentives than did those in the other levels, and older adults attributed less importance to all incentives except for health benefits. The findings are relevant for planning activities intended to encourage adults to engage in more physical activity.