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841.
842.
Physical activity is associated with many benefits, but persons with multiple sclerosis (MS) are less physically active than the general population. There is a critical need for research on methods of increasing and sustaining the physical activity levels of this population. This randomized controlled trial examined the efficacy of an Internet-delivered and theory-based behavioral intervention that was supplemented with video coaching for increasing and sustaining physical activity over time in persons with MS. Physically inactive, ambulatory persons with MS (N?=?45) were randomly assigned to intervention (n?=?22) or control (n?=?23) conditions and completed a battery of questionnaires before, after, and three months after a 12-week intervention period. Data analyses were conducted in PASW 18.0. Partial eta squared ([Formula: see text]) effect size indicated that there was a large, statistically significant condition-by-time interaction on physical activity ([Formula: see text]). Cohen's d effect sizes indicated that the intervention group had a large increase in physical activity after the 12-week trial (d?=?.98) that was sustained over a three-month follow-up (d?=?.79). The current study supports the efficacy of a behavioral intervention for increasing and sustaining physical activity in a sample of persons with MS. 相似文献
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844.
Piper BJ Li V Eiwaz MA Kobel YV Benice TS Chu AM Olsen RH Rice DZ Gray HM Mueller ST Raber J 《Behavior research methods》2012,44(1):110-123
The measurement of executive function has a long history in clinical and experimental neuropsychology. The goal of the present report was to determine the profile
of behavior across the lifespan on four computerized measures of executive function contained in the recently developed Psychology
Experiment Building Language (PEBL) test battery and evaluate whether this pattern is comparable to data previously obtained with the non-PEBL versions of these tests. Participants
(N = 1,223; ages, 5–89 years) completed the PEBL Trail Making Test (pTMT), the Wisconsin Card Sort Test (pWCST; Berg, Journal of General Psychology, 39, 15–22, 1948; Grant & Berg, Journal of Experimental Psychology, 38, 404–411, 1948), the Tower of London (pToL), or a time estimation task (Time-Wall). Age-related effects were found over all four tests,
especially as age increased from young childhood through adulthood. For several tests and measures (including pToL and pTMT),
age-related slowing was found as age increased in adulthood. Together, these findings indicate that the PEBL tests provide
valid and versatile new research tools for measuring executive functions. 相似文献
845.
The study of attentional capture has provided a rich context for assessing the relative influence of top-down and bottom-up factors in visual perception. Some have argued that attentional capture by a salient, irrelevant stimulus is contingent on top-down attentional set (e.g., Folk, Remington, & Johnston, Journal of Experimental Psychology: Human Perception and Performance 18:1030?C1044, 1992). Others, however, have argued that capture is driven entirely by bottom-up salience and that top-down factors influence the postallocation speed of disengagement from the irrelevant stimulus (e.g., Theeuwes, Acta Psychologica 135:77?C99, 2010a). In support of this speed-of-disengagement hypothesis, recent findings from the modified spatial-cuing paradigm show that cues carrying a no-go target property produce reverse, or negative, cuing effects, consistent with inhibition of the cue location from which attention has been very quickly disengaged (Belopolsky, Schreij, & Theeuwes, Perception, & Psychophysics, 72, 326?C341, 2010). Across six experiments, we show that this inhibitory process can be dissociated from shifts of spatial attention and is, thus, not a reliable marker of capture. We conclude that the data are inconsistent with the predictions of the disengagement hypothesis. 相似文献
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848.
The study explored how two measures of mother–adolescent dissimilarity in illness representations relate to negative emotional adjustment in mothers and adolescents. Eighty-four adolescents with type 1 diabetes (age 11.5–17.5) and their mothers completed the Revised Illness Perceptions Questionnaire and measures of negative emotional adjustment. Adolescents viewed diabetes as less chronic, containing fewer negative emotional representations, and that mother had less control over the illness than did mothers. Mother–adolescent mean differences in representations were not associated with negative adjustment for adolescents; mean differences in coherence were related to negative adjustment for mothers, when controlling the individual's own representations. A measure of dissimilarity based on the sum of squared differences between mother and adolescent was associated with negative adolescent adjustment when controlling adolescent's own representations, but no relations were found for mothers. Dyadic approaches to coping with chronic illness will benefit by understanding how dissimilarity in illness representations between patient and caregiver relate to adjustment. 相似文献
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Bethany H. Bynum Brian J. Hoffman Adam W. Meade William A. Gentry 《Journal of business and psychology》2013,28(2):203-219