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911.
Sulik MJ Eisenberg N Lemery-Chalfant K Spinrad TL Silva KM Eggum ND Betkowski JA Kupfer A Smith CL Gaertner B Stover DA Verrelli BC 《Developmental psychology》2012,48(3):740-754
The LPR and STin2 polymorphisms of the serotonin transporter gene (SLC6A4) were combined into haplotypes that, together with quality of maternal parenting, were used to predict initial levels and linear change in children's (N = 138) noncompliance and aggression from age 18-54 months. Quality of mothers' parenting behavior was observed when children were 18 months old, and nonparental caregivers' reports of noncompliance and aggression were collected annually from 18 to 54 months of age. Quality of early parenting was negatively related to the slope of noncompliance only for children with the LPR-S/STin2-10 haplotype and to 18-month noncompliance only for children with haplotypes that did not include LPR-S. The findings support the notion that SLC6A4 haplotypes index differential susceptibility to variability in parenting quality, with certain haplotypes showing greater reactivity to both supportive and unsupportive environments. These different genetic backgrounds likely reflect an evolutionary response to variation in the parenting environment. 相似文献
912.
Varda Liberman Julia A. Minson Christopher J. Bryan Lee Ross 《Journal of experimental social psychology》2012,48(2):507-512
Two studies provided evidence for the role of naïve realism in the failure of individuals to give adequate weight to peer input, and explored two strategies for reducing the impact of this inferential bias. Study 1 demonstrated that dyad members see their own estimates as more “objective” than those of their partners and that this difference in perceived objectivity predicts the degree of underweighting. Compelling participants to assess their own versus their partners' objectivity prior to revising estimates decreased underweighting, an effect that was mediated by differences in perceived objectivity. Study 2 showed that the increase in accuracy that results from requiring dyad members to offer joint estimates via discussion is largely retained in subsequent individual estimates. Both studies showed that underweighting is greater when dyad members disagree on the issue about which they are making consensus estimates—a finding that further supports a “naïve realism” interpretation of the phenomenon. 相似文献
913.
Increased antagonistic muscle activation during balance recovery has been documented during proprioceptive reliant responses in older adults. The authors examined ankle muscle cocontraction levels in young and older adults during balance recovery from a tether-release-induced, vestibular-input-reliant perturbation. Nine healthy young adult and 9 older women without history of falls performed maximum isometric plantar flexion and dorsiflexion trials followed by balance recovery trials using the ankle strategy. Surface electromyography data normalized to isometric conditions were analyzed during the 100 ms prior to release, the 50 ms immediately after release, and the 100-ms epochs from 100-400 ms following release. No differences existed in gastrocnemius and soleus activity levels (p > .05), though antagonistic tibialis anterior activity was greater in the older adults during the 300-400 ms epoch (young: 23.5 ± 5.8%, older: 38.7 ± 9.4%; p = .001). Vestibular-dominated perturbations may increase antagonistic activity during the recovery phase in older adults, inhibiting efficient balance recovery during proprioceptive and vestibular reliant perturbations. 相似文献
914.
Four groups of adults, ages 40 to 70+ years, took the Modified Lag Task which requires that participants remember lists of words and subsequently recall the first, second, or third word from the end of the list. Previously, the task showed convergent validity with the operation span (a complex span measure) and a divergent validity with the digit span (a simple span measure). To establish predictive validity, the present study was designed to assess if this task could separate four age groups in working memory performance. The present study found support for the validity of the Modified Lag Task; however, additional research is warranted to further develop the construct validity of this task. 相似文献
915.
Jacob Ross 《Philosophical Studies》2012,161(3):381-390
This paper defends the claim that there is a deep tension between the principle of countable additivity and the one-third solution to the Sleeping Beauty problem. The claim that such a tension exists has recently been challenged by Brian Weatherson, who has attempted to provide a countable additivity-friendly argument for the one-third solution. This attempt is shown to be unsuccessful. And it is argued that the failure of this attempt sheds light on the status of the principle of indifference that underlies the tension between countable additivity and the one-third solution. 相似文献
916.
This article uses an account of dwelling to interrogate the concept of curriculum making. Tim Ingold??s use of dwelling to understand culture is productive here because of his implicit and explicit interest in intergenerational learning. His account of dwelling rests on a foundational ontological claim??that mental construction and representation are not the basis upon which we live in the world??which is very challenging for the kinds of curriculum making with which many educators are now familiar. It undermines assumptions of propositional knowledge and of the use of mental schemas to communicate and share. At the level of critique, then, dwelling destabilizes contemporary ideas of curriculum as textual, pre-specified content for transmission or pre-defined objectives or standardized activity. The positive claims of dwelling are equally challenging, for these are that the world is a domain of relational entanglement in which an organism can be no more than a point of growth for an emergent ??environment??, and meaning only inheres in these relations. The paper articulates how differentiation (of learner, salient meanings, knowledge, skill and place) are possible in such an ontology, and how curriculum making can be understood from this perspective as being the remaking of relationships between these. 相似文献
917.
918.
Robyn Lowe Adam J. Guastella Nigel T.M. Chen Ross G. Menzies Ann Packman Sue O’Brian Mark Onslow 《Journal of Fluency Disorders》2012,37(4):263-274
PurposeAdults who stutter are at significant risk of developing social phobia. Cognitive theorists argue that a critical factor maintaining social anxiety is avoidance of social information. This avoidance may impair access to positive feedback from social encounters that could disconfirm fears and negative beliefs. Adults who stutter are known to engage in avoidance behaviours, and may neglect positive social information. This study investigated the gaze behaviour of adults who stutter whilst giving a speech.Method16 adults who stutter and 16 matched controls delivered a 3-min speech to a television display of a pre-recorded lecture theatre audience. Participants were told the audience was watching them live from another room. Audience members were trained to display positive, negative and neutral expressions. Participant eye movement was recorded with an eye-tracker.ResultsThere was a significant difference between the stuttering and control participants for fixation duration and fixation count towards an audience display. In particular, the stuttering participants, compared to controls, looked for shorter time at positive audience members than at negative and neutral audience members and the background.ConclusionsAdults who stutter may neglect positive social cues within social situations that could serve to disconfirm negative beliefs and fears.Educational objectives: The reader will be able to: (a) describe the nature of anxiety experienced by adults who stutter; (b) identify the most common anxiety condition among adults who stutter; (c) understand how information processing biases and the use of safety behaviours contribute to the maintenance of social anxiety; (d) describe how avoiding social information may contribute to the maintenance of social anxiety in people who stutter; and (e) describe the clinical implications of avoidance of social information in people who stutter. 相似文献
919.
Ross D 《The Behavioral and brain sciences》2012,35(1):37-38
Guala notes that low-cost punishment is the main mechanism that deters free-riding in small human communities. This mechanism is complemented by unusual human vulnerability to gossip. Defenders of an evolutionary discontinuity supporting human sociality might seize on this as an alternative to enjoyment of moralistic aggression as a special adaptation. However, the more basic adaptation of language likely suffices. 相似文献
920.
The present research demonstrates that pride has divergent effects on prejudice, exacerbating or attenuating evaluative biases against stigmatized groups, depending on the form of pride experienced. Specifically, three experiments found that hubristic pride--associated with arrogance and self-aggrandizement--promotes prejudice and discrimination, whereas authentic pride--associated with self-confidence and accomplishment--promotes more positive attitudes toward outgroups and stigmatized individuals. Findings generalized to discriminatory judgments (Experiment 2) and were found to be mediated by empathic concern for the evaluative target. Together, these experiments suggest that pride may be a cause of everyday prejudice and discrimination but that these social consequences depend on whether hubristic or authentic pride is experienced, and the degree to which empathic concern is subsequently aroused. 相似文献