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61.
In two experiments, repeated runs of a continuous recognition task were employed to assess healthy participants' ability to handle interference from irrelevant emotional and neutral memories. Presumably, such interference can be due to salience from either emotional or mnemonic processing. In both experiments, participants made more false alarms to emotional faces that were familiar from preceding runs (i.e., emotion-induced temporal-context confusion). Participants performed well for neutral faces in the first experiment including only two runs. However, increasing the number of runs to four in the second experiment induced temporal context confusion also for neutral faces. The findings suggest that memory interference can be induced when the salience of irrelevant information is erroneously considered diagnostic for memory judgements. 相似文献
62.
Jens Johansson 《Philosophical Studies》2010,150(1):21-35
Derek Parfit famously defends a number of surprising views about “fission.” One is that, in such a scenario, it is indeterminate
whether I have survived or not. Another is that the fission case shows that it does not matter, in itself, whether I survive
or not. Most critics of the first view contend that fission makes me cease to exist. Most opponents of the second view contend
that fission does not preserve everything that matters in ordinary survival. In this paper I shall provide a critique that
does not rely on either of these contentions. There are other, interrelated reasons to reject Parfit’s defense of the two
theses. In particular, the availability of the following view creates trouble for Parfit: I determinately survive fission,
but it is indeterminate which fission product I am. 相似文献
63.
Johansson A Santtila P Harlaar N von der Pahlen B Witting K Algars M Alanko K Jern P Varjonen M Sandnabba NK 《Aggressive behavior》2008,34(2):190-202
The genetic and environmental influences on sexual coercion, and to what extent its associations with alcohol use and psychopathy depend on shared genetic and environmental effects, were explored in a Finnish population-based sample of 938 men, aged 33-43 years, using the classical twin study design. All three phenotypes were associated positively and affected by genes (sexual coercion 28%, alcohol use 60%, psychopathy 54%), with 46% of the correlation between sexual coercion and psychopathy, 89% of the correlation between alcohol use and psychopathy and 100% of the correlation between sexual coercion and alcohol use being explained by shared genetic effects. Further, the results showed that a proportion of the variance in sexual coercion was derived from a highly genetic source that was common with alcohol use and psychopathy. This latent factor was hypothesized to reflect a general tendency for antisocial behavior that is pervasive across different situations. Relevant theories on sexual coercion were discussed in light of the results. 相似文献
64.
Bernberg E Andersson IJ Gan LM Naylor AS Johansson ME Bergström G 《Stress (Amsterdam, Netherlands)》2008,11(5):381-389
Social support and a stimulating environment have been suggested to reduce stress reactions and cardiovascular risk. The aim of this study was to assess the role of environmental enrichment and social interaction for development of atherosclerosis in atherosclerosis prone mice. Male ApoE-/- mice were divided into four groups and followed during 20 weeks: (i) enriched environment (E, n=12), (ii) deprived environment (ED, n=12), (iii) enriched environment with exercise (E-Ex, n=12) and (iv) socially deprived by individual housing (SD, n=10). Plasma lipid and cytokine concentrations were measured. Atherosclerosis was quantified in cross-sections of innominate artery and en face in thoracic aorta. Plaque area was significantly increased in SD mice in the innominate artery (P<0.05 vs. all other groups), but not in the thoracic aorta. Plasma lipids were increased in SD mice (P<0.001 vs. all for total cholesterol, P<0.05 vs. E and P<0.01 vs. ED for triglycerides). Plasma concentration of granulocyte-colony stimulating factor (G-CSF) was decreased in SD mice compared to E mice (P<0.05). Thus, social isolation increased atherosclerosis and plasma lipids in ApoE-/- mice. Reduction in plasma G-CSF levels may hamper endothelial regeneration in the atherosclerotic process. While environmental enrichment did not affect atherosclerosis, social isolation accelerated atherosclerosis. 相似文献
65.
Decision making for incompetent patients is a much-discussed topic in bioethics. According to one influential decision making
standard, the substituted judgment standard, a surrogate decision maker ought to make the decision that the incompetent patient
would have made, had he or she been competent. Empirical research has been conducted in order to find out whether surrogate
decision makers are sufficiently good at doing their job, as this is defined by the substituted judgment standard. This research
investigates to what extent surrogates are able to predict what the patient would have preferred in the relevant circumstances.
In this paper we address a methodological shortcoming evident in a significant number of studies. The mistake consists in
categorizing responses that only express uncertainty as predictions that the patient would be positive to treatment, on the
grounds that the clinical default is to provide treatment unless it is refused. We argue that this practice is based on confusion
and that it risks damaging the research on surrogate accuracy.
相似文献
Mats JohanssonEmail: |
66.
We examined developmental aspects of the ability to monitor the temporal context of an item’s previous occurrence while event‐related potentials (ERPs) were recorded. In a continuous recognition task, children between 10 and 12 years and young adults watched a stream of pictures repeated with a lag of 10–15 intervening items and indicated recurrences. In a second run, these already familiar pictures were repeated as non‐targets along with new pictures, while subjects were instructed to indicate only recurrences within the run. Young adults were able to maintain high performance levels in both tasks, whereas children had longer response times and committed a large number of false alarms to non‐targets. ERPs in both age groups showed similar parietal old/new effects for target repetitions within runs. In addition, adults’ ERPs showed similar old/new effects at frontal electrodes for repetitions and non‐targets, presumably reflecting assessments of familiarity, whereas for children repeated relative to first presentations were associated with more negative‐going waveforms at anterior frontal recording sites. Together, these results suggest a continuing maturation of the brain networks assessing novelty or familiarity. Recollection as indexed by parietal old/new effects appeared similar between young adults and children, but the development of controlled episodic retrieval, resulting in recollection of non‐target information, appears to continue well into adolescence. 相似文献
67.
Jens Johansson 《Philosophia》2009,37(1):87-89
Many philosophers maintain that artworks, such as statues, are constituted by other material objects, such as lumps of marble.
I give an argument against this view, an argument which appeals to mereological simples.
相似文献
Jens JohanssonEmail: |
68.
Reasoning research suggests that people use more stringent criteria when they evaluate others' arguments than when they produce arguments themselves. To demonstrate this “selective laziness,” we used a choice blindness manipulation. In two experiments, participants had to produce a series of arguments in response to reasoning problems, and they were then asked to evaluate other people's arguments about the same problems. Unknown to the participants, in one of the trials, they were presented with their own argument as if it was someone else's. Among those participants who accepted the manipulation and thus thought they were evaluating someone else's argument, more than half (56% and 58%) rejected the arguments that were in fact their own. Moreover, participants were more likely to reject their own arguments for invalid than for valid answers. This demonstrates that people are more critical of other people's arguments than of their own, without being overly critical: They are better able to tell valid from invalid arguments when the arguments are someone else's rather than their own. 相似文献
69.
The importance of individual response patterns in claustrophobic patients was examined in the present study. Thirty-four psychiatric outpatients with a phobia of enclosed spaces were assessed in a small test chamber. During the test their overt behavior was video-taped, heart-rate was measured continuously, and self-ratings of experienced anxiety were made at certain intervals. On the basis of their reactions in the test situation, the patients were divided into two groups showing different response patterns—behavioral and physiological reactors. Within each group the patients were randomly assigned to one behaviorally-focused method (exposure), one physiologically-focused method (applied relaxation) and a waiting-list control group. The patients were treated individually in eight sessions. The between-group comparisons showed that both exposure and applied relaxation were significantly better than the waiting-list condition. Furthermore, exposure yielded better results than applied relaxation for the behavioral reactors, while applied relaxation was better than exposure for the physiological reactors. The improvements were maintained at a follow-up assessment 14 months after the end of treatment. The results support the hypothesis that greater effects are achieved when the method used fits the patient's response pattern than when it does not. 相似文献
70.
Urinary catecholamine levels were investigated in one female and one male Ph.D. candidate during public defense of their Ph.D. theses as well as during 2 weeks preceding and 1 week following these examinations. Although females, in comparison to males, usually tend to show a weak adrenaline response to mental stress, a threefold increase was observed in both subjects. The results support the assumption that sex differences in adrenal-medullary responsiveness to stress is not determined by sex-specific biological factors alone and that a “male” responsiveness may be observed in achievement-oriented females exposed to a challenging real-life situation. Effects on urinary measures of cortisol obtained from the male subject resembled effects on adrenaline, showing that this kind of real-life stressor affects the sympathetic-adrenal medullary and the pituitary-adrenocortical systems similarly. 相似文献