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121.
Can chimpanzees learn the reputation of strangers indirectly by observation? Or are such stable behavioral attributions made exclusively by first-person interactions? To address this question, we let seven chimpanzees observe unfamiliar humans either consistently give (generous donor) or refuse to give (selfish donor) food to a familiar human recipient (Experiments 1 and 2) and a conspecific (Experiment 3). While chimpanzees did not initially prefer to beg for food from the generous donor (Experiment 1), after continued opportunities to observe the same behavioral exchanges, four chimpanzees developed a preference for gesturing to the generous donor (Experiment 2), and transferred this preference to novel unfamiliar donor pairs, significantly preferring to beg from the novel generous donors on the first opportunity to do so. In Experiment 3, four chimpanzees observed novel selfish and generous acts directed toward other chimpanzees by human experimenters. During the first half of testing, three chimpanzees exhibited a preference for the novel generous donor on the first trial. These results demonstrate that chimpanzees can infer the reputation of strangers by eavesdropping on third-party interactions. 相似文献
122.
Carolien Martijn Hugo Alberts Paschal Sheeran Gjalt-Jorn Y. Peters Jochen Mikolajczak Nanne K. de Vries 《Journal of experimental social psychology》2008,44(4):1137-1143
Research on goal attainment has demonstrated that people are more likely to reach their goals when they form implementation intentions. Three experiments tested whether implementation intentions lead to tenacious goal striving following blockage of an initial attempt to reach the goal. In all three experiments some participants were instructed to form an implementation intention and other participants were not. Subsequently, the initial goal-directed attempt of all participants was unexpectedly blocked. Experiment 1 found that implementation intentions resulted in more attempts to realize one’s goal. Experiment 2 showed that when participants formed an implementation intention their repeated attempt was acted out as intensely as their first, blocked attempt. Experiment 3 found that implementation intentions still allow people to seize an alternative, more onerous means to realize their intention. These results imply that implementation intention conserve self-regulatory strength. After goal blockage, the remaining strength can be used to continue goal-directed action. 相似文献
123.
This prospective study compares 31 patients in behavior long-term-therapy (with an average of 63 sessions) with 31 patients in psychoanalytically-oriented long-term-therapy (with an average of 185 sessions) in a naturalistic design. All patients passed a diagnostic interview (SKID) by an external interviewer. Only patients with depression and anxiety problems (Axis I of DSM III – R) were included in the study. Symptoms (SCL-90-R), interpersonal problems (IIP-D) and goals (GAS) were examined at the beginning, after 1 year, after 2.5 and 3.5 years. We found that the characteristics of patients, who choose – or were referred to – psychoanalytically oriented or behaviour long term therapy were different, even when their diagnosis were comparable, in a number of characteristics, such as education, access to psychotherapy (recommended by professionals versus patients introduce themselves), the taking of psychotropic medication, and the strain of symptoms. The results demonstrate how research comparing therapies using parallelized samples do not meet reality in every case: Even if psychoanalists and behavior therapists do treat equal disorders, – and they each do that very successfully, as we could prove – the patients differ in many ways. Effect sizes and clinically significant results about changes of the symptomatic and of interpersonal problems are presented that prove the efficacy of the treatments. 相似文献
124.
Carter Wendelken Jochen Ditterich Silvia A. Bunge Cameron S. Carter 《Cognitive, affective & behavioral neuroscience》2009,9(4):434-447
Encoding and dealing with conflicting information is essential for successful decision making in a complex environment. In
the present fMRI study, stimulus conflict and response conflict are contrasted in the context of a perceptual decision-making
dot-motion discrimination task. Stimulus conflict was manipulated by varying dot-motion coherence along task-relevant and
task-irrelevant dimensions. Response conflict was manipulated by varying whether or not competing stimulus dimensions provided
evidence for the same or different responses. The right inferior frontal gyrus was involved specifically in the resolution
of stimulus conflict, whereas the dorsal anterior cingulate cortex was shown to be sensitive to response conflict. Additionally,
two regions that have been linked to perceptual decision making with dot-motion stimuli in monkey physiology studies were
differentially engaged by stimulus conflict and response conflict. The middle temporal area, previously linked to processing
of motion, was strongly affected by the presence of stimulus conflict. On the other hand, the superior parietal lobe, previously
associated with accumulation of evidence for a response, was affected by the presence of response conflict. These results
shed light on the neural mechanisms that support decision making in the presence of conflict, a cognitive operation fundamental
to both basic survival and high-level cognition. 相似文献
125.
Myopic regret avoidance: Feedback avoidance and learning in repeated decision making 总被引:3,自引:0,他引:3
Decision makers can become trapped by myopic regret avoidance in which rejecting feedback to avoid short-term outcome regret (regret associated with counterfactual outcome comparisons) leads to reduced learning and greater long-term regret over continuing poor decisions. In a series of laboratory experiments involving repeated choices among uncertain monetary prospects, participants primed with outcome regret tended to decline feedback, learned the task slowly or not at all, and performed poorly. This pattern was reversed when decision makers were primed with self-blame regret (regret over an unjustified decision). Further, in a final experiment in which task learning was unnecessary, feedback was more often rejected in the self-blame regret condition than in the outcome regret condition. We discuss the findings in terms of a distinction between two regret components, one associated with outcome evaluation, the other with the justifiability of the decision process used in making the choice. 相似文献
126.
Jochen Müsseler 《Psychological research》1994,56(4):251-260
Summary One implication of the spotlight metaphor of visual-attention shifts is that attention moves from position to position, from one object in the visual field to another. According to this view, attention shifts start at the last-focussed position, their spatiotemporal course therefore being position dependent. A different, yet also position-dependent, formulation is implied in the so-called premotor hypothesis of attention (Rizzolatti et al., 1987; Umiltà et al., 1991). In this paper these two accounts are tested against an alternative, position-independent conception. It is maintained that in the case of onset-triggered processes, the course of the attentional shifts is independent of the last-focussed position.On the basis of these considerations, three experiments measure choice-reaction times of stimuli at different spatial positions after peripheral cuing of the same or another position within the visual field. Results show no evidence for the position-dependent conception of the spotlight metaphor or the premotor hypothesis with a long SOA (stimulus-onset asynchrony) between cue and stimulus. Only with a short SOA is the premotor hypothesis supported by the data. As an alternative interpretation, a position-independent thesis is favored, in which it is assumed that attention shifts can be adjusted during an early stage of processing. 相似文献
127.
128.
Previous work indicates that action-control processes influence perceptual processes: The identification probability of a left- or right-pointing arrow is reduced when it appears during the execution of a compatible left-right-key press (Müsseler & Hommel, in press). The present study addresses the question of whether this effect would also be observed in a detection task—that is, with judgments that do not require discriminating between left- and right-pointing arrows. Indeed, we found comparable effects in both the identification task and the detection task. This outcome is interpreted within a commoncoding framework, which holds that stimulus processing and action control operate on the same codes. 相似文献
129.
The results of investigations into the changes in the function of the hypothalamus-hypophysis-renal gland system in chronic alcoholics are collated. The review shows that the activity of the hypothalamus-hypophysis-renal gland system is below-normal in at least some alcoholics, but due to conflicting results, it is not possible to decide whether the hypofunction of the adrenal gland is a primary of a secondary effect. The interrelationship between glucocorticosteroids and catecholamines is described and its importance for the adaptability of the organism is stressed. On the basis of the review it may seem advisable to introduce corticosteroid treatment into the therapeutic schema for delerious alcoholic patients and also to apply it on patients with the alcohol withdrawal syndrome if tests show that the function of their hypothalamus-hypophysis-renal gland systems is impaired. 相似文献
130.