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51.
Simon Robertson 《Ethical Theory and Moral Practice》2008,11(3):263-277
A common view of the relation between oughts and reasons is that you ought to do something if and only if that is what you
have most reason to do. One challenge to this comes from what Jonathan Dancy calls ‘enticing reasons.’ Dancy argues that enticing
reasons never contribute to oughts and that it is false that if the only reasons in play are enticing reasons then you ought
to do what you have most reason to do. After explaining how enticing reasons supposedly work and why accepting them may appear
attractive, I firstly show why we are not committed to accepting them into our conceptual framework and then argue that no
reasons work in the way enticing reasons are claimed to. Thus we should reject the category of enticing reasons entirely.
相似文献
Simon RobertsonEmail: |
52.
53.
Gearhart RF Lagally KM Riechman SE Andrews RD Robertson RJ 《Perceptual and motor skills》2008,106(3):893-903
The constant-RPE tracking model monitors progress over the course of exercise training. During aerobic exercise, prior work using this model has demonstrated similar relative intensities pre- and posttraining, while the absolute workload increases posttraining. However, the prediction equation associated with these changes has not been examined during resistance training. 22 men and 27 women (M age 64 yr.) participated in a 12-wk. resistance training. Orientation determined resistances associated with RPEs of 4, 5-6, 7-8, and 9 on the OMNI-Resistance Exercise Scale for each of seven exercises for each participant. Individuals trained 3 days a week for 12 wk. Linear regression was used to calculate percent of 1-repetition maximum (%1-RM) at RPE 4, 6, and 8 for the exercises. Paired sample t tests, comparing pre- and posttraining %1-RMs at each RPE, indicated that posttraining %1-RMs were higher for RPE 4 and 6 for each exercise, while at RPE 8, results were significant for only 3 exercises. Thus for at least the RPE 4 and 6, the constant RPE tracking model is appropriate for resistance exercise; however, the equation of prediction appears to differ from that for aerobic exercise. Development of a new prediction equation may be necessary to track relative strength in older adults. 相似文献
54.
Simon Robertson 《亚里斯多德学会会刊》2006,106(1):393-399
This paper responds to Susan Hurley's attempt to undermine the adequacy of the distinction at the heart of the internalism-externalism debate about reasons for action. The paper shows that Hurley's argument fails and then, more positively, indicates a neat way to characterize the distinction. 相似文献
55.
Resource-limited regions of the world represent the areas most affected by the global HIV epidemic. Currently, there are insufficient
data on the neurocognitive effects of HIV in these areas and neuropsychological studies that have been carried out thus far
are marked by inconsistent methods, test batteries, and rating systems for levels of cognitive impairment. These differences
in methods, along with genetic variability of both virus and host, differences in co-infections and other co-morbidities,
differences in language and culture, and infrastructural deficiencies in many international settings create challenges to
the assessment of neurocognitive functioning and interpretation of neuropsychological data. Identifying neurocognitive impairment
directly attributable to HIV, exploring relationships between HIV-associated neurocognitive impairment, disease variables,
and everyday functioning, evaluating differences in HIV-1 subtype associated neuropathology, and determining implications
for treatment remain complicated and challenging goals. Endeavors to establish a more standardized approach to neurocognitive
assessments across international studies in addition to accumulating appropriate normative data that will allow more accurate
rating of neuropsychological test performance will be crucial to future efforts attempting to achieve these goals. 相似文献
56.
The Integration of Body Movement and Attention in Young Infants 总被引:1,自引:0,他引:1
Steven S. Robertson Leigh F. Bacher & Noelle Lalley Huntington 《Psychological science》2001,12(6):523-526
The normal development of adaptive behavior in humans depends on the integration of visual attention and body movement, yet little is known about the initial state of movement-attention coupling at the beginning of postnatal life. We studied 1- and 3-month-old infants during extended periods of visual exploration and found that spontaneous shifts of gaze are preceded by rapid changes in general body movement. The results reveal a tight link between motor activation and overt attention on a time scale of seconds or less. This link undergoes substantial developmental change in the first few weeks after birth. During that time, phasic motor activation may play a key role in visual exploration by helping to unlock gaze when the environment is unchanging. 相似文献
57.
58.
James M. Olson Neal J. Roesesc Jennifer Meen D. Joyce Robertson 《Journal of applied social psychology》1995,25(11):944-964
Two field studies assessed the preconditions and behavioral consequences of relative deprivation. A sample of single mothers receiving government assistance participated in Study 1, and a sample of working women participated in Study 2. We found general support for a 2-factor model of the preconditions of relative deprivation, in which wanting the desired state and deserving the desired state were the best predictors of discontent. In both studies, discontent regarding the status of one's group (i.e., single mothers or working women) was specifically predictive of reports of group-directed protest behaviors. In Study 2, discontent regarding one's own status was specifically predictive of willingness to engage in self-improvement behaviors. Participants in both studies reported more group discontent than personal discontent. These findings provide support from naturalistic settings for the construct of relative deprivation. 相似文献
59.
An experiment is reported that documents the maximum average speed-amplitude relationship across the full range of motion for elbow flexion. Minimum movement time increased as a negative exponential within the movement range up to 94-97% of the maximum range of motion. At this point a discontinuity occurred with movement time increasing at an increasing rate probably due to anatomical and morphological constraints. These results suggest that the maximum average velocity-amplitude boundary to the movement speed-accuracy relationship is curvilinear. Kinematic analysis of the movements as a function of range of motion suggests that a simple pulse-step model of movement control cannot account for the present findings. 相似文献
60.
L C Robertson S E Palmer 《Journal of experimental psychology. Human perception and performance》1983,9(2):203-214
Two experiments tested whether mental rotation of complex, hierarchical stimuli occurs holistically or separately at global and local levels of structure. Large (global) letters were constructed from spatial arrangements of small (local) letters. Reflection conditions (normal vs. reflected) were produced by varying the two levels independently. The task was structured so that subjects could rotate one level of the stimulus in some conditions but had to rotate both levels in other conditions. Experiment 1 showed that rotation rate was not affected by the number of levels that had to be rotated to make a reflection decision. This result implies that the rotation of global and local levels occurred together rather than sequentially. Experiment 2 showed that the rotation of the two levels was holistic as opposed to parallel and independent. The results also demonstrate that global information is processed faster than local information regardless of whether or not a rotation is performed. These findings are discussed in relation to theories of mental rotation and global precedence. 相似文献