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In a semi‐naturalistic response–effect compatibility paradigm, participants were given the opportunity to learn that hand‐shaking actions would be followed by social effects (human hand‐shaking stimuli from a third‐person perspective) or inanimate effects (block arrow stimuli). Relative to the actions, these effects appeared on the same or the opposite side of the screen (positional compatibility), and pointed towards or away from the response hand (directional compatibility). After learning, response times indicated a positional compatibility effect for both social and inanimate effects, but a directional compatibility effect occurred only for social action effects. These findings indicate that actions can be represented, not only by their effects on the inanimate world, but also by their effects on the actions of others. They are consistent with ideomotor theory, and with the view that actions are represented by bidirectional response–effect associations. They also have implications with respect to the origins and on‐line control of imitation and the systems supporting imitation.  相似文献   
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Several theories suggest that actions are coded for imitation in terms of mentalistic goals, or inferences about the actor’s intentions, and that these goals solve the correspondence problem by allowing sensory input to be translated into matching motor output. We tested this intention reading hypothesis against general process accounts of imitation using the pen-and-cups task. The task has three components: participants place a pen in one of two cups, using their right or left hand, and one of two grips. Previous research has revealed a colour minimum error pattern; when one of the components is differentially coloured (e.g., one cup is red and the other blue), accuracy is greatest on the coloured dimension. We found the colour minimum error pattern, not only in the standard version of the task, where participants imitate the actions of a human model, but also in three novel variants of the task, in which participants responded on the basis of spatial or arbitrary stimulus–response mappings to ‘geometric’, non-biological stimuli. These stimuli do not afford the attribution of intentions, and therefore our results support generalist theories of imitation by showing that the colour minimum error pattern is due, not to intention reading, but to the operation of task-general processes of perception, attention and motor control.  相似文献   
75.
The nano initiative in the US and elsewhere encourages and promotes various forms of multi-stakeholder activities, such as industrial collaborations. Forming part of the discourse of expectations around emerging technologies, collaboration is an important resource holding together different practices of knowledge production. In the conversations between policy and science, collaboration becomes a measurable entity and a measure in itself, figuring in the evaluations of the performance of individual faculty and research centres; however, the policy metaphor of ‘collaboration’ stands for a variety of different forms and shapes of interactions between university and industry. From a discourse analysis perspective, ‘folk theories’ of nano collaboration help to explore the dynamics of the university/industry boundary in the scientific organisational discourse as in a recent series of interactions with scientists, university officials and technology transfer officers in a number of US universities. What does the introduction of the new entity (nano) mean for scientists, and for university practices of technology transfer and commercialisation, in terms of trying to accommodate individual ‘nano’ cases into university regulations and procedures? How are these practices and experiences discussed in terms of collaboration? Assessments of value of collaboration ranged between polarised views, raising questions about occasions, audiences and communities of assessors invoked in the construction of acceptable accounts of nano collaboration. Metaphors and analogies were used to mobilise specific meanings in the discourses of the innovative potential of emerging fields. As such, assessments of the potential of terms pertinent to the emerging discourses, such as collaboration, would be better based on the assumption of shared meanings, not fixed and given, but actively achieved.  相似文献   
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This study investigated cultural variations in perceived control over personal goals in Russian and American college students. Several appraisal dimensions of personal goals were studied including goals’ importance, their attainability, and sources of control over goal attainment, such as self, others, luck, and fate. The association between assimilative (tenacious goal pursuit) and accommodative (flexible goal adjustment) control strategies and perceived attainability of goals was also examined. The results indicated that both Russian and American students gave higher priority to work‐ and education‐related goals and lower priority to the familial goal. In both samples, the familial goal was the most influenced and health was the least influenced by luck/chance and fate. Overall, American students were more optimistic about the perceived probability to attain their goals, which may be affected by a cultural tendency for self‐enhancement and positive outlook. Russian students had a stronger belief in control by luck/chance and fate over personal goals, which coincides with a less agentic orientation of Russian culture. Regardless of culture and goal content, goal importance was associated with greater perceived success in goal attainment. However, control strategies (assimilative and accommodative) as well as internal control differentially predicted perceived attainability of goals depending on the goals’ content. For both Russians and Americans, perceived attainability of education‐related goals was associated with assimilative strategies and internal control; leisure was associated with accommodative strategies and health‐related goals were associated with internal control. Characteristics of cultural contexts accountable for crosscultural differences in perceived control over personal goals are discussed.  相似文献   
78.
This research aims to analyze the relationship between sociocultural values and human food preferences. The latter, as shown in this paper, are greatly influenced by cultural identity. This work stems from a theoretical context that originated in Europe and the United States towards the mid‐twentieth century, within the field of the anthropology of food. A qualitative and quantitative analysis has been performed in the Comunidad Autónoma de Aragón (Spain). Research methods include focus groups, in‐depth interviews, participant observation, and a questionnaire that was handed out to a representative sample of the Aragonese population (816 people over 21 years of age; confidence level of 95.5% and error margin of ±3.5). Regarding the research outcome, a highly significant qualitative and quantitative connection has been found between food selection and cultural identity. In other words, people prefer to consume foods that are symbolically associated with their own culture, in order to reinforce their sense of belonging. Although this study has been carried out in Aragón, it is our belief that the results can be generalized to other areas. The originality and interest of our findings are notable considering that, to date, few works have analyzed the sociocultural factors motivating food behavior. Moreover, these results could be used by public and private organizations to meet objectives such as health promotion and product marketing.  相似文献   
79.
The purpose of this study was to test the effect of short-term training on reaching behavior in infants at the onset of reaching. The study was a single-blind, parallel group design, randomized controlled clinical trial. Thirty healthy infants were randomly assigned to a social control group (n = 15) or a reaching training group (n = 15). Infants began the study up to 3 days after the onset of reaching and were assessed three times across 2 days: pretraining (before training), posttraining 1 (after 1 session of training), and posttraining 2 (after 3 sessions of training). The reaching training group received 3 sessions of training by a physical therapist while the control group received a similar amount of time sitting in the therapist's lap. The data were analyzed using repeated-measures analyses of variance, and independent-samples tests with Bonferroni adjustments. Short-term training resulted in increased frequency of object contacts, shorter and smoother reaches, and improved hand positioning. The few short training sessions likely provided opportunities for infants to explore and learn to select movements from their existing movement repertoire. These results demonstrate that adaptive changes in infants' novel behaviors can emerge rapidly, and highlight the need for increased understanding of how to most effectively time early interventions.  相似文献   
80.
The present study assessed frontostriatal mediated memory functions in children with ADHD (N = 12) and healthy control participants (N = 12) using two tests of conditional associative learning (i.e., object and spatial) that shared similar stimulus-response association structures but that differed in terms of the demands placed upon strategic processes. Children with ADHD displayed normal performance on the object learning task but were impaired on the spatial learning task that placed greater demands on internally derived strategic processes. Secondary analyses further indicated that this strategic processing impairment cannot be attributed specifically to perseverative or working memory errors but rather appears to be related to a more general inability to maintain a high degree of consistency in responding across trials. Although the results of this study must be interpreted in light of the small sample sizes, they suggest that ADHD does not produce a basic deficit in acquiring stimulus-response associations previously shown to be associated with basal ganglia dysfunction. Rather, these findings suggest that the impaired conditional associative learning performance of children with ADHD is attributable to deficits in strategic processes previously been found to be dependent upon the integrity of the prefrontal cortex.  相似文献   
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