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171.
Global and local processing of hierarchical visual stimuli in tufted capuchin monkeys (Cebus apella)
Spinozzi G De Lillo C Truppa V 《Journal of comparative psychology (Washington, D.C. : 1983)》2003,117(1):15-23
Capuchin monkeys' (Cebas apella) relative accuracy in the processing of the global shape or the local features of hierarchical visual stimuli was assessed. Three experiments are presented featuring manipulations of the arrangement and the density of the local elements of the stimuli. The results showed a clear advantage for local level processing in this species, which is robust under manipulations of the density of the local elements of the stimuli. By contrast the density of the component elements linearly affected accuracy in global processing. These findings, which support those from other studies in which a local superiority emerged in animals, challenge the generality of early claims concerning the adaptive value of global advantage in the processing of hierarchical visual patterns. 相似文献
172.
Jos?EggerEmail author Hubert?De?Mey Jan?Derksen Cees?Van Der?Staak 《Current psychology (New Brunswick, N.J.)》2003,22(2):117-124
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. 相似文献
173.
Accountability and cooperation in social dilemmas: The influence of others’ reputational concerns 总被引:1,自引:0,他引:1
David?De?CremerEmail author Müriel?Barker 《Current psychology (New Brunswick, N.J.)》2003,22(2):155-163
The present study examined the assumption that non-anonymous choices in social dilemmas (i.e., choices for which one is accountable)
may influence cooperation, but only to the extent that decision-makers believe that the others will evaluate non-cooperation
negatively. Based on a recent review by Kerr (1999), it was expected that under conditions of accountability, decision-makers
would cooperate more when they believed that the others within the group were also concerned about their social reputation
and therefore were aware of the social norm of cooperation within social dilemmas. As a consequence, it could be expected
that non-cooperation by oneself would be evaluated negatively by those others since they seemed to be aware of what ought
to be done in a social dilemma (i.e., the norm of cooperation). Results confirmed these predictions and, in addition, also
showed that greater willingness to cooperate was associated with stronger feelings of collective concern. The findings are
discussed in terms of recent literature on anonymity effects in social dilemmas.
This research was part of the second author's master thesis at Maastricht University. The first author was supported by a
fellowship of the Netherlands Organization for Scientific Research (NWO, no. 016.005.019). 相似文献
174.
Which quantitative method should be used to choose among competing mathematical models of cognition? Massaro, Cohen, Campbell, and Rodriguez (2001) favor root mean squared deviation (RMSD), choosing the model that provides the best fit to the data. Their simulation results appear to legitimize its use for comparing two models of information integration because it performed just as well as Bayesian model selection (BMS), which had previously been shown by Myung and Pitt (1997) to be a superior alternative selection method because it considers a model's complexity in addition to its fit. In the present study, after contrasting the theoretical approaches to model selection espoused by Massaro et al. and Myung and Pitt, we discuss the cause of the inconsistencies by expanding on the simulations of Massaro et al. Findings demonstrate that the results from model recovery simulations can be misleading if they are not interpreted relative to the data on which they were evaluated, and that BMS is a more robust selection method. 相似文献
175.
N-Methyl-D-aspartate (NMDA) receptors appear to be involved in CS processing and memory consolidation. The present paper analyzed the effect of the non-competitive NMDA receptor antagonist Dizocilpine maleate (MK-801) on Latent Inhibition (LI)-retarded learning of a CS-US association after to-be-CS preexposures at time of testing, using Wistar rats as experimental subjects. If NMDA receptors are involved in CS processing, MK-801 administration should affect LI. In fact, previous experiments revealed that a 2.0mg/kg MK-801 dose, administered 20 h before preexposure and conditioning, abolished LI in a conditioned taste-aversion paradigm. In the present paper, MK-801 (0.2 mg/kg) was either injected after preexposure, after conditioning, or after both preexposure and conditioning stages. LI was abolished when MK-801 was injected after preexposure, but not when it was injected after conditioning. These results support the role of NMDA receptors in CS processing and memory consolidation. 相似文献
176.
This work presents a critical analysis of Pavlov's influence that goes beyond the conventional view: that which reduces his influence in American psychology to the behaviorism of Watson and Hull. In order to understand the nature of the Russian physiologist's influence in American psychology, we propose a distinction between three approaches to it: 1) the symbolic approach, on representing a model of the possibility of constructing an objective psychology; 2) the methodological approach, given the importance of the technique of conditional reflexes; and 3) the theoretical approach, which is derived from his theory of higher nervous activity. This perspective permits us to suggest that most of Pavlov's influence on behaviorism was of a symbolic and methodological nature--though the methodological influence also reached other authors that did not belong to the behaviorist traditions, as was the case of Mateer. As far as the theoretical influence is concerned, our work proposes that it is more visible in authors such as Gantt and Liddell, or even in authors such as Boldirev, Director of the Pavlovian Laboratory at the Battle Creek Sanitarium in Michigan. The case of Gantt is especially interesting because, in addition to his important contributions, he played an essential role in the foundation of the Pavlovian Society, and the journal Conditional Reflex. What our work proposes is that to understand the nature of Pavlov's influence in American psychology it is necessary to take into account the very characteristics of that psychology: its pragmatic interests, its methodological rigor, the dominant systems of neo-behavioral theory and the changes that occurred after the Second World War. 相似文献
177.
The nature of the association between anger and 5 appraisal-action tendency components--goal obstacle, other accountability, unfairness, control, and antagonism--was examined in terms of specificity, necessity, and sufficiency. In 2 studies, participants described recently experienced unpleasant situations in which 1 of the appraisal-action tendency components was present or absent and indicated which emotions they had experienced. The results showed that (a) other accountability and arrogant entitlement, as an instance of unfairness, are specific appraisals ability for anger; and most important, (b) none of the components is necessary or sufficient for anger. The findings suggest that the relation between emotions and appraisal-action tendency components should be conceptualized instead as a contingent association, meaning that they usually co-occur. 相似文献
178.
In previous investigations we documented that people use several strategies to determine different numerosities of blocks that are presented in a square grid. One of these strategies is the clever subtraction strategy, wherein the number of empty squares in the grid is subtracted from the total number of squares in the grid. In the present study we investigated participants' flexibility in strategy use when varying the shape of the grid. Analysis of the results in terms of the theoretical framework of Lemaire and Siegler (1995) regarding strategic change shows that this contextual variable affected the frequency, execution time, and accuracy of subjects' use of the subtraction strategy. The usefulness of this framework for analyzing the nature of the adaptation to contextual variations is discussed. From a methodological point of view, this study documents the potential of Beem's (1993, 1999) segmented linear regression models for assessing subjects' strategy use in cognitive tasks. 相似文献
179.
In search of the minimal requirements for transitive reasoning, a simple neural network was trained and tested on the non-verbal
version of the conventional "five-term-series task" – a paradigm used with human adults, children and a variety of non-human
species. The transitive performance of the network was analogous in several aspects to that reported for children and animals.
The three effects usually associated with transitive choices i.e. "symbolic distance", "lexical marking" and "end-anchor",
were also clearly shown by the neural network. In a second experiment, where the training conditions were manipulated, the
network failed to match the behavioural pattern reported for human adults in the test following an ordered presentation of
the premises. However, it mimicked young children's performance when tested with a novel comparison term. Although we do not
intend to suggest a new model of transitive inference, we conclude, in line with other authors, that a simple error-correcting
rule can generate transitive behaviour similar to the choice pattern of children and animals in the binary form of the five-term-series
task without requiring high-order logical or paralogical abilities. The analysis of the training history and of the final
internal structure of the network reveals the associative strategy employed. However, our results indicate that the scope
of the associative strategy used by the network might be limited. The extent to which the conventional five-term-series task,
in absence of appropriate manipulations of training and testing conditions, is suitable to detect cognitive differences across
species is also discussed on the basis of our results.
Accepted after revision: 29 May 2001
Electronic Publication 相似文献
180.
In modern digital applications, users often interact with virtual representations of themselves or others, called avatars. We examined how these avatars and their perspectives influence stimulus–response compatibility in a Simon task. Participants responded to light/dark blue stimuli with left/right key presses in the presence of a task-irrelevant avatar. Changes in stimulus–response compatibility were used to quantify changes in the mental representation of the task and perspective taking toward this avatar. Experiments 1 and 2 showed that perspective taking for an avatar occurred in orthogonal stimulus–response mappings, causing a compatibility effect from the avatar’s point of view. In the following two experiments we introduced a larger variety of angular disparities between the participant and avatar. In Experiment 3, the Simon effect with lateralized stimulus positions remained largely unaffected by the avatar, pointing toward an absence of perspective taking. In Experiment 4, after avatar hand movements were added in order to strengthen the participants’ sense of agency over the avatar, a spatial compatibility effect from the avatar’s perspective was observed again, and hints of the selective use of perspective taking on a trial-by-trial basis were found. Overall, the results indicate that users can incorporate the perspective of an avatar into their mental representation of a situation, even when this perspective is unnecessary to complete a task, but that certain contextual requirements have to be met. 相似文献