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801.
《Journal of Cognitive Psychology》2013,25(5-6):594-604
ABSTRACTIn psychometric mental-rotation tests, males mostly outperform females. The stimulus material and stereotype beliefs could partly be responsible for these differences. This was investigated in an experimental study administering traditional cube figures (C-MRT) and structurally similar pellet figures (P-MRT) to middle- and high-school aged children. 168 participants either solved the C-MRT or the P-MRT and filled out a questionnaire about their perceived ability of stereotypically masculine and feminine activities and about their gender stereotype beliefs. Overall, boys outperformed girls and all children who solved the C-MRT were better than those who solved the P-MRT. Only boys' mental-rotation performance increased with age while girls' perceived ability of stereotypically masculine activities decreased. A regression analysis identified children’s gender, their perceived ability of stereotypically masculine activities and their female gender stereotype beliefs as predictors of mental-rotation performance. Results are discussed with a focus on stereotype threat effects and gender differences in mental-rotation strategies. 相似文献
802.
《Journal of Cognitive Psychology》2013,25(1):60-75
When participants take part in mental imagery experiments, are they using their “tacit knowledge” of perception to mimic what they believe should occur in the corresponding perceptual task? Two experiments were conducted to examine whether such an account can be applied to mental imagery in general. These experiments both examined tasks that required participants to “mentally rotate” stimuli. In Experiment 1, instructions led participants to believe that they could reorient shapes in one step or avoid reorienting the shapes altogether. Regardless of instruction type, response times increased linearly with increasing rotation angles. In Experiment 2, participants first observed novel objects rotating at different speeds, and then performed a mental rotation task with those objects. The speed of perceptually demonstrated rotation did not affect the speed of mental rotation. We argue that tacit knowledge cannot explain mental imagery results in general, and that in particular the mental rotation effect reflects the nature of the underlying internal representation and processes that transform it, rather than participants’ pre-existing knowledge. 相似文献
803.
《Journal of Cognitive Psychology》2013,25(3):306-312
This paper reports a novel paradox of intuitive probabilistic reasoning detected in naïve reasoners’ responses in two separate experiments where we manipulated the number of sets (or possibilities) of the problem keeping constant the probability of the critical set. Experiment 1 showed that the incidence of the Gambler's Fallacy (GF) was reduced when the number of sets was increased. In Experiment 2, a reduction of the GF also occurred but, more importantly, the percentage of correct responses of the participants increased when three sets of possibilities instead of two were used. Therefore, both Experiments 1 and 2 demonstrated that an increase in the extensional complexity of a problem can, under certain circumstances, lead to facilitation. These results support the importance of the extensional features in solving chance problems and are consistent with the model theory of reasoning. 相似文献
804.
《Journal of Cognitive Psychology》2013,25(1):52-59
Ability to process information during a mental imagery task relying on visuospatial working memory and the advantages offered by the possibility of focusing the activation on specific items were examined in younger and older adults. The mental imagery task used for the study required participants to mentally move on a two-dimensional (5×5) or three-dimensional (3×3×3) matrix, while having to hold in memory either the whole pathway (WP condition) or just the final position reached (FP condition). The results revealed age-related differences in ability to modulate activation of visuospatial information. In particular, older adults, unlike the younger counterparts, did not benefit when the task allowed just part of the presented material to be considered. In particular, they drew less advantage from the three-dimensional matrix than the younger group. The findings are discussed in terms of the importance of processes reducing visuospatial working memory activation of irrelevant information and of the difficulties encountered by older adults in the modulation of activation. 相似文献
805.
《Journal of Cognitive Psychology》2013,25(5):559-573
In a speeded aiming task, participants were trained to move a cursor with a mouse from a start position to target locations when the mouse–cursor relationships were either normal or reversed (vertically, horizontally, or both vertically and horizontally). Testing, which occurred after a 5-min delay, involved either the same or a different reversal condition. Response times improved across training, but no transfer occurred when reversal conditions were changed between training and testing. Specificity of training effects extended even to performance with the highly familiar normal mouse. Normal mouse use was slowed by a factor of two to three with training on a reversed mouse although the effect was transient in that case. To contend with a reversed mouse, participants apparently adopt a global inhibition strategy, suppressing all normal movements (and replacing them with sensorimotor remapped movements) but disinhibiting movements along any nonreversed dimension (selectively disengaging the sensorimotor remapping). 相似文献
806.
Abstract Stress has been a ubiquitous concept in health research. We compare stress theories with the operationalization of stress in health research. Although scientific investigation is ideally based on theoretical principles, stress research is seen as often atheoretical or misapplying theories. Major conceptualizations of stress are considered and prominent research avenues in health psychology are analyzed as to the extent they mirror, diverge from, or inform stress conceptualizations. A central conclusion of the paper is that perceived and objective stressors are not only both valid construels of stress, but that they operate differently on psychological and physiological systems. 相似文献
807.
This paper reports an empirical study of the self-reported psychological strain, ill-health, job satisfaction and organizational commitment of 2450 public sector employees located in Western Australia. The framework used to predict these variables is a demands, supports-constraints framework. The key theoretical issue explored is the differential roles of negative affectivity in predicting the outcomes from this framework. Four different pathways are explored which are taken from Moyle ( Journal of Organizational Behaviour , 16 (1995), 647-668). Multiple regression methods are used to control for negative affectivity and other effects such as curvilinear relationships. The results show that negative affectivity has a variety of effects on both health and job attitude variables but the effects are much larger for the health variables. The conclusion recommends that, in studies that rely on all self-report data, the various possible effects of personality variables such as negative affectivity should be explored in preference to ignoring them. 相似文献
808.
《Journal of aggression, maltreatment & trauma》2013,22(1-2):133-171
Abstract This chapter serves as an introduction to the many roles of health care professionalsin the assessment, care, and treatment of child victimization. It concentrates on those professionals caring for the physical health of victims of child abuse and neglect, although there are many similarities between child maltreatment and other family violence victims. In reviewing the health impact of maltreatment and the historical contributions of health care professionals, it discusses the roles that health care disciplines play in clinical care, training, research, and advocacy and their interaction with the community's child welfare, legal, and criminal justice systems. 相似文献
809.
In two experiments, we test predictions regarding processing advantages/disadvantages for natural objects and artefacts in visual object recognition. Varying three important parameters—degree of perceptual differentiation, stimulus format, and stimulus exposure duration—we show how different category-effects can be provoked in normal subjects on the same task. We interpret the results in light of the Pre-semantic Account of Category Effects (PACE; Gerlach, 2009), and conclude that category-effects do not reflect absolute processing differences between categories. Rather, category-effects are products of common operations which are differentially affected by the structural similarity among objects (with natural objects being more structurally similar than artefacts). The potentially most important aspect of the present study is the demonstration that category-effects are very context dependent; an aspect which has been neglected in earlier literature on category-specificity. PACE provides a useful framework in this respect, as it specifies how category-effects are influenced by changes in task and stimulus characteristics. 相似文献
810.
ABSTRACTInteracting with other people is a ubiquitous part of daily life. A complex set of processes enable our successful interactions with others. The present research was conducted to investigate how the processing of visual stimuli may be affected by the presence and the hand posture of a co-actor. Experiments conducted with participants acting alone have revealed that the distance from the stimulus to the hand of a participant can alter visual processing. In the main experiment of the present paper, we asked whether this posture-related source of visual bias persists when participants share the task with another person. The effect of personal and co-actor hand-proximity on visual processing was assessed through object-specific benefits to visual recognition in a task performed by two co-actors. Pairs of participants completed a joint visual recognition task and, across different blocks of trials, the position of their own hands and of their partner's hands varied relative to the stimuli. In contrast to control studies conducted with participants acting alone, an object-specific recognition benefit was found across all hand location conditions. These data suggest that visual processing is, in some cases, sensitive to the posture of a co-actor. 相似文献