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Unbroken mirrors: challenging a theory of Autism 总被引:1,自引:0,他引:1
The 'broken mirror' theory of autism has received considerable attention far beyond the scientific community. This theory proposes that the varied social-cognitive difficulties characteristic of autism could be explained by dysfunction of the mirror neuron system, thought to play a role in imitation. We examine this theory and argue that explaining typical imitation behavior, and the failure to imitate in autism, requires much more than the mirror neuron system. Furthermore, evidence for the role of the mirror neuron system in autism is weak. We suggest the broken mirror theory of autism is premature and that better cognitive models of social behavior within and beyond the mirror neuron system are required to understand the causes of poor social interaction in autism. 相似文献
205.
Christopher Hamilton 《Ethical Theory and Moral Practice》2008,11(2):181-195
Raimond Gaita’s work in moral philosophy is unusual and important in focusing on the concept of sainthood. Drawing partly
on the work of George Orwell, and partly on the life and work of Simone Weil, as well as on further material, I argue that
Gaita’s use of this notion to help make sense of the concept of human preciousness is unconvincing, not least because he does
not properly explore the figure and psychology of the saint in any detail. I relatedly argue that the notion of human preciousness
in question is implausible and, in some ways, sentimental. I also explore Gaita’s concept of “speaking personally” in moral
philosophy, and suggest that matters here are a great deal more complicated than he supposes.
相似文献
Christopher HamiltonEmail: |
206.
Matthew D. Sacchet Benjamin J. Levy J. Paul Hamilton Arkadiy Maksimovskiy Paula T. Hertel Jutta Joormann Michael C. Anderson Anthony D. Wagner Ian H. Gotlib 《Cognitive, affective & behavioral neuroscience》2017,17(1):77-93
Negative biases in cognition have been documented consistently in major depressive disorder (MDD), including difficulties in the ability to control the processing of negative material. Although negative information-processing biases have been studied using both behavioral and neuroimaging paradigms, relatively little research has been conducted examining the difficulties of depressed persons with inhibiting the retrieval of negative information from long-term memory. In this study, we used the think/no-think paradigm and functional magnetic resonance imaging to assess the cognitive and neural consequences of memory suppression in individuals diagnosed with depression and in healthy controls. The participants showed typical behavioral forgetting effects, but contrary to our hypotheses, there were no differences between the depressed and nondepressed participants or between neutral and negative memories. Relative to controls, depressed individuals exhibited greater activity in right middle frontal gyrus during memory suppression, regardless of the valence of the suppressed stimuli, and differential activity in the amygdala and hippocampus during memory suppression involving negatively valenced stimuli. These findings indicate that depressed individuals are characterized by neural anomalies during the suppression of long-term memories, increasing our understanding of the brain bases of negative cognitive biases in MDD. 相似文献
207.
Abstract. Engaging students in a course in the Sociology of Religion can be a challenge, particularly when working with student populations in a homogeneous region of the country who have limited experience with religious diversity. We approached the course from a sociological/anthropological perspective, requiring each student to complete an in‐depth participation/observation research experience and write an ethnographic account of a religion or belief system different from his or her own. While other instructors have used a similar pedagogy, using ethnography with our student population was generally successful as a learning and writing tool. 相似文献
208.
Murty VP LaBar KS Hamilton DA Adcock RA 《Learning & memory (Cold Spring Harbor, N.Y.)》2011,18(11):712-717
The present study investigated the effects of approach versus avoidance motivation on declarative learning. Human participants navigated a virtual reality version of the Morris water task, a classic spatial memory paradigm, adapted to permit the experimental manipulation of motivation during learning. During this task, participants were instructed to navigate to correct platforms while avoiding incorrect platforms. To manipulate motivational states participants were either rewarded for navigating to correct locations (approach) or punished for navigating to incorrect platforms (avoidance). Participants' skin conductance levels (SCLs) were recorded during navigation to investigate the role of physiological arousal in motivated learning. Behavioral results revealed that, overall, approach motivation enhanced and avoidance motivation impaired memory performance compared to nonmotivated spatial learning. This advantage was evident across several performance indices, including accuracy, learning rate, path length, and proximity to platform locations during probe trials. SCL analysis revealed three key findings. First, within subjects, arousal interacted with approach motivation, such that high arousal on a given trial was associated with performance deficits. In addition, across subjects, high arousal negated or reversed the benefits of approach motivation. Finally, low-performing, highly aroused participants showed SCL responses similar to those of avoidance-motivation participants, suggesting that for these individuals, opportunities for reward may evoke states of learning similar to those typically evoked by threats of punishment. These results provide a novel characterization of how approach and avoidance motivation influence declarative memory and indicate a critical and selective role for arousal in determining how reinforcement influences goal-oriented learning. 相似文献
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Turner TH Goldstein J Hamilton JM Jacobson M Pirogovsky E Peavy G Corey-Bloom J 《Journal of motor behavior》2011,43(4):295-302
Initiation and inhibition of saccadic eye movements has been shown to be impaired in patients with Huntington's disease (HD) and premanifest gene carriers (PMGC), and may provide biomarkers useful in tracking phenotypic change. Computerized behavioral tests of prosaccade latency and disinhibition presented to 31 non-gene carriers (NGC), 25 PMGC, and 12 HD patients. These tests provided quantitative performance measures without use of eye-tracking equipment. Significant differences on saccade tests were found, with PMGC intermediate between NGC and HD patients. Saccade latency discriminated PMGC from NGC, whereas saccade disinhibition discriminated PMGC from HD patients. Results suggest utility of behavioral saccade measures as premanifest indicators of phenoconversion in HD. 相似文献