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171.
Much recent research using discrete unimanual tasks has indicated that individuals with Down syndrome (DS) have more difficulty performing verbal-motor tasks as compared to visual-motor tasks (see Perceptual-Motor Behavior in Down Syndrome, Human Kinetics, Champaign, IL, 2000, p. 305 for a review). In continuous tasks, however, individuals with DS perform better when movement is guided by auditory information compared to visual information (Downs Syndr.: Res. Prac. 4 (1996) 25; J. Sport Exercise Psy. 22 (2000) S90). The aim of the present study was to investigate if there are any differences for adults with DS between visual, auditory and verbal guidance in a continuous bimanual task. Ten adults with DS, 10 adults without DS and 10 typically developing children drew lines bimanually towards the body (down) and away from the body (up) following three different guidance conditions: visual (flashing line), auditory (high tone, low tone), and verbal (“up”, “down”). All participants produced mostly in-phase movements and were close to the 1000 ms target time for all guidance conditions. The adults with DS, however, displayed greater variability in their movement time, movement amplitude and bimanual coordination than adults without DS. For all groups, the left hand was slower and more variable in producing the lateral movements than the right hand. The results regarding guidance information suggest that auditory information is beneficial for repetitive bimanual tasks for adults with DS. Possible mechanisms that cause these results will be discussed. 相似文献
172.
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) was used to assess individuals' patterns of psychological symptoms across the spectrum of HIV illness. Two hundred and twenty-five participants in the present sample were administered the MMPI-2, 61 were HIV-seronegative controls, 61 were asymptomatic, 36 were symptomatic, and 67 met criteria for AIDS. Symptomatic HIV-seropositive patients scored higher on the Hypochondriasis, Conversion-Hysteria, and Depression Scales. These differences appeared to be largely due to an increase in somatic complaints rather than an increase in other depressive symptoms. Group differences did not appear to be due to HIV-associated neuropsychological dysfunction. Interpretive strategies for the MMPI-2 and treatment considerations are discussed. 相似文献
173.
Recent findings suggest that infants can remember words from stories over 2 week delays (Jusczyk, P. W., & Hohne, E. A. (1997). Infants' memory for spoken words. Science, 277, 1984-1986). Because music, like language, presents infants with a massively complex auditory learning task, it is possible that infant memory for musical stimuli is equally powerful. Seven-month-old infants heard two Mozart sonata movements daily for 2 weeks. Following a 2 week retention interval, the infants were tested on passages of the familiarized music, and passages taken from similar but novel music. Results from two experiments suggest that the infants retained the familiarized music in long-term memory, and that their listening preferences were affected by the extent to which familiar passages were removed from the musical contexts within which they were originally learned. 相似文献
174.
175.
Three studies (Ns = 200, 135, and 187 college undergraduates) contrasted process versus content accounts of eyewitness metamemory monitoring. Subjective vividness, a cue related to memory content, was a better predictor of confidence and accuracy than were cues related to the retrieval process. Participants who were asked to recall, rather than recognize, event details displayed greater insight into accuracy, primarily because vividness was a more valid accuracy cue under recall conditions. Results reinforce the value of recall-based protocols for eliciting eyewitness testimony and suggest some specific conditions (e.g., yes-no recognition) under which investigators should be especially cautious in relying on confidence to infer accuracy. In addition, results point to a general framework for understanding moderating effects on eyewitness metamemory accuracy. 相似文献
176.
177.
Robertson JA 《The American journal of bioethics : AJOB》2001,1(1):2-9
Safe and effective methods of preconception gender selection through flow cytometric separation of X- and Y-bearing sperm could greatly increase the use of gender selection by couples contemplating reproduction. Such a development raises ethical, legal, and social issues about the impact of such practices on offspring, on sex ratio imbalances, and on sexism and the status of women. This paper analyzes the competing interests in preconception gender selection, and concludes that its use to increase gender variety in a family, and possible for selecting the gender of firstborn, might in many instances be ethically acceptable. 相似文献
178.
This paper starts by considering an argument for thinking that predictive processing (PP) is representational. This argument suggests that the Kullback–Leibler (KL)-divergence provides an accessible measure of misrepresentation, and therefore, a measure of representational content in hierarchical Bayesian inference. The paper then argues that while the KL-divergence is a measure of information, it does not establish a sufficient measure of representational content. We argue that this follows from the fact that the KL-divergence is a measure of relative entropy, which can be shown to be the same as covariance (through a set of additional steps). It is well known that facts about covariance do not entail facts about representational content. So there is no reason to think that the KL-divergence is a measure of (mis-)representational content. This paper thus provides an enactive, non-representational account of Bayesian belief optimisation in hierarchical PP. 相似文献
179.
Core self‐evaluations and subjective well‐being in the U.S. and the Philippines: The moderating role of self‐construal
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Patrick J. Rosopa Jesus Alfonso D. Datu Stephen A. Robertson Theresa P. Atkinson 《Scandinavian journal of psychology》2016,57(1):50-56
Extant literature has shown that the compound personality variable core self‐evaluations (CSE) is associated with various psychological outcomes. However, there is a dearth of research on CSE across cultures. Consistent with self‐construal theory, because there can be differences in self‐construals within and between cultures, the present study examined the moderating role of culture on the relation between CSE and subjective well‐being while also allowing for individual differences in self‐construal in the US and the Philippines. In both countries, CSE positively predicted subjective well‐being. Notably, the association between CSE and subjective well‐being was stronger in the US than in the Philippines. In addition, independent self‐construal strengthened the positive impact of CSE on subjective well‐being especially in the US. Overall, CSE positively predicts subjective well‐being; however, the relationship depends on not only the cultural context, but also on individual differences in self‐construal. 相似文献
180.
Aging and intraindividual variability in performance: analyses of response time distributions 总被引:1,自引:0,他引:1
It has been suggested that older adults are more variable in their performance because they are more prone to lapses of either attention or intention. In the present experiment, 9 young and 9 older adults each performed nearly 2000 trials of a same-different judgment task. As expected, older adults were slower and more variable than young adults. When the age-related difference in speed was taken into account, however, the older adults were, if anything, less variable than the young adults. When younger and older adults' RT distributions were analyzed using quantile-quantile plots and by fitting ex-Gaussian and Weibull functions, there was no consistent evidence that older adults' distributions were more skewed than young adults', as would be predicted by age-related increases in lapses of attention or intention. Importantly, there was a positive, linear relation between RT and intraindividual variability, and the same relation was observed both within subjects (practice increased speed and reduced variability) as well as between subjects (regardless of age, slower individuals were more variable). Thus, the present results suggest that there may be a general law governing the relation between average RT and variability, and that the greater performance variability of older adults primarily reflects their greater average RTs. 相似文献