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201.
This paper critically examines the biology of species identity and the morality of crossing species boundaries in the context of emerging research that involves combining human and nonhuman animals at the genetic or cellular level. We begin with the notion of species identity, particularly focusing on the ostensible fixity of species boundaries, and we explore the general biological and philosophical problem of defining species. Against this backdrop, we survey and criticize earlier attempts to forbid crossing species boundaries in the creation of novel beings. We do not attempt to establish the immorality of crossing species boundaries, but we conclude with some thoughts about such crossings, alluding to the notion of moral confusion regarding social and ethical obligations to novel interspecies beings. 相似文献
202.
Norris FH Murphy AD Baker CK Perilla JL Rodriguez FG Rodriguez Jde J 《Journal of abnormal psychology》2003,112(4):646-656
Prevalence rates of trauma and posttraumatic stress disorder (PTSD) were estimated from a probability sample of 2,509 adults from 4 cities in Mexico. PTSD was assessed according to Diagnostic and Statistical Manual of Mental Disorders (American Psychiatric Association, 1994) criteria using the Composite International Diagnostic Interview (CIDI; WHO, 1997). Lifetime prevalence of exposure and PTSD were 76% and 11.2%, respectively. Risk for PTSD was highest in Oaxaca (the poorest city), persons of lower socioeconomic status, and women. Conditional risk for PTSD was highest following sexual violence, but nonsexual violence and traumatic bereavement had greater overall impact because of their frequency. Of lifetime cases, 62% became chronic; only 42% received medical or professional care. The research demonstrates the importance of expanding the epidemiologic research base on trauma to include developing countries around the world. 相似文献
203.
Although function transfer often has been studied in complex operant procedures (such as matching to sample), whether operant reinforcement actually produces function transfer in such settings has not been established. The present experiments, with high school students as subjects, suggest that stimulus pairings can promote function transfer in conditions that closely approximate those of matching to sample. In Experiment 1, the subjects showed transfer of operant responding from three geometric figures (C1, C2, C3) to three colored shapes (B1, B2, B3) when the latter were paired with the former. Experiment 2 involved two groups of subjects. In the matching group, subjects matched the colored shapes with the geometric figures; in the yoked group, the shapes were merely paired with the geometric figures, and the schedule of stimulus pairing was yoked to the performance of the subjects in the matching group. Both groups of subjects showed function transfer. Experiment 3 documented function transfer from C stimuli to B stimuli through indirect stimulus pairings (A-B, A-C). In Experiment 4, function transfer was obtained even though the subjects vocalized continuously during the pairing trials, presumably preventing covert verbalization that might mediate transfer effects. Our results are consistent with a Pavlovian account and raise difficulties for current operant theories of function transfer. 相似文献
204.
Synthese - Illusionism about phenomenal consciousness is the thesis that phenomenal consciousness does not exist, even though it seems to exist. This thesis is widely judged to be uniquely... 相似文献
205.
François Kammerer 《Philosophical Psychology》2018,31(1):44-67
Illusionism about consciousness is the thesis that phenomenal consciousness does not exist, but merely seems to exist. Embracing illusionism presents the theoretical advantage that one does not need to explain how consciousness arises from purely physical brains anymore, but only to explain why consciousness seems to exist while it does not. As Keith Frankish puts it, illusionism replaces the “hard problem of consciousness” with the “illusion problem.” However, a satisfying version of illusionism has to explain not only why the illusion of consciousness arises, but also why it arises with its particular strength: Notably, why we are so deeply reluctant to recognize the illusory nature of consciousness. Explaining our strong intuitive resistance to illusionism means solving what I call the “illusion meta-problem,” which I think is a part of the illusion problem. In this paper, I argue that current versions of illusionism are unable to solve the illusion meta-problem. I focus on two of the most promising recent illusionist theories of consciousness, and I show why they fail to explain the peculiar reluctance we encounter whenever we try to accept that consciousness is an illusion. 相似文献
206.
AbstractIn this paper, we argue that ordinary judgments about core normative topics purport to attribute stable, objective properties and relations. Our strategy is first to analyze the structures and practices characteristic of paradigmatically representational concepts such as concepts of objects and natural kinds. We identify three broad features that ground the representational purport of these concepts. We then argue that core normative concepts exhibit these same features. 相似文献
207.
A Longitudinal Study of Predictors of Housing Stability,Housing Quality,and Mental Health Functioning Among Single Homeless Individuals Staying in Emergency Shelters
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Tim Aubry Arnaud Duhoux Fran Klodawsky John Ecker Elizabeth Hay 《American journal of community psychology》2016,58(1-2):123-135
The current study examined risk and resilience factors at multiple levels that affect homeless individuals' ability to exit homelessness and achieve housing stability. It also examined the relationship between housing status, housing quality and mental health functioning. The methodology is a longitudinal study of single homeless individuals staying in emergency shelters in a medium‐sized Canadian city who were followed for a 2 year period. Data were collected from participants at a baseline interview when they were homeless and at a 2‐year follow‐up. There were 329 participants interviewed at baseline and 197 (59.9%) participants interviewed at follow‐up. Results from a structural equation modelling analysis found that having interpersonal and community resources were predictive of achieving housing stability. Specifically, having a larger social support network, access to subsidized housing, and greater income was related to achieving housing stability. On the other hand, having a substance use problem was a risk factor associated with a failure to achieving housing stability. Being female, feeling personally empowered, having housing that is perceived of being of higher quality were directly predictive of mental health functioning at follow‐up. Findings are discussed in the context of previous research and their policy implications. 相似文献
208.
Marie‐Françoise Valax Anne‐Claire Rattat Bruno Baracat Julien Cegarra 《Applied cognitive psychology》2016,30(6):911-916
We studied the effect of the switch from daylight saving time to winter time on punctuality for medical appointments, thus allowing us to investigate the role of dynamic and analytic modes of time management in time‐based prospective memory tasks. Insofar as some authors assume that the dynamic mode of time management is based on rhythms, we hypothesised that the switch from daylight saving time would cause more disturbances when participants' everyday activity had a weak temporal structure. Results showed that after the switch, participants arrived early for their appointments, but this earliness was not higher for participants whose everyday activity had a low temporal structure than for participants with highly structured everyday activity. Nevertheless, compared to the time they planned to arrive, participants with low regularity of activity arrived earlier after the switch, suggesting that their temporal reference would the time fixed by themselves, rather than the appointment time. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
209.
210.
Vitu F Lancelin D Marrier d'Unienville V 《Journal of experimental psychology. Human perception and performance》2007,33(5):1220-1249
In reading, fixation durations are longer when the eyes fall near the center of words than when fixation occurs toward the words' ends-the inverted-optimal viewing position (I-OVP) effect. This study assessed whether the I-OVP effect was based on the fixation position in the word or the fixation position in the visual stimulus. In Experiments 1-3, words were presented at variable locations within longer strings of symbols. On trials with short fixation durations, there were effects of fixation position in the string. When long fixations were made, there were effects of fixation position in the word. In Experiment 4, an I-OVP effect was found for meaningless number strings, and its strength depended on the task's processing demands. The findings show that (a) the I-OVP effect is unrelated to orthographic informativeness and (b) the eyes are not constrained to spend more time at the center of visual stimuli. These results support a perceptual-economy account: Fixations are held longer when the eyes are estimated to be at locations in words/stimuli in which greater amounts of information are anticipated. Implications for eye movements in reading are discussed. 相似文献