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271.
Maurice Finn Skye McDonald 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):244-258
The results of a randomized controlled trial of repetition-lag training in older adults with amnestic mild cognitive impairment (aMCI) are reported. A modified repetition-lag training procedure with extended encoding time and strategy choice was used. The training required discriminating studied words from non-studied lures that were repeated at varying intervals during the test phase. Participants were assessed pre/post using untrained measures of cognition and self-report questionnaires. Primary outcome measures were recall of unrelated word pairs both immediately following presentation and following a delay. Secondary outcomes were a measure of attention, cognitive flexibility, and visual working memory. Participants were also asked to report on the frequency of cognitive failures and mood before and after training. Participants (N = 31) were randomized into either the treatment or a no-contact control group and attended the clinic twice per week over a four week period. Twenty-four participants completed the study (twelve in each group). Results indicated that the training group improved at recalling unrelated word pairs after a delay. There were no significant effects of training on other outcomes, self-reported cognitive failures or mood. The results are discussed along with suggestions for future research. 相似文献
272.
Alan Silberberg Scott Parker Candice Allouch Monica Fabos Hanaleah Hoberman Laura McDonald Melinda Murphy Alexandra Olson Laura Wyatt 《Animal cognition》2013,16(6):907-914
Lakshminarayanan et al. (J Exp Soc Psychol 47: 689–693, 2011) showed that when choice is between variable (risky) and fixed (safe) food amounts with the same expected values, capuchins prefer the safe alternative if choice is framed as a gain, but the risky alternative if it is framed as a loss. These results seem similar to those seen in human prospect-theory tests in choice between variable and fixed gains or losses. Based on this similarity, they interpreted their results as identifying a between-species commonality in cognitive function. In this report, we repeat their experiment with humans as subjects (an up-linkage replication). Whether choices were rewarded with candy or nickels, choice approximated indifference whether framed as gains or losses. Our data mirror those of others who found that when humans make risky choices within a repeated-trials procedure without verbal instruction about outcome likelihoods, preference biases seen in one-shot, language-guided, prospect-theory tests such as Tversky and Kahneman’s (Science 211:453–458, 1981) reflection effect may not appear. The disparity between our findings and those of Lakshminarayanan et al. suggests their study does not evidence a cognitive process shared by humans and capuchins. 相似文献
273.
In a masked priming procedure manipulating orthographic neighbourhood size, the priming word activates a number of word candidates of which the target could be one. Whether the target is one of the candidates or not determines how quickly it is recognised. However, the efficiency of lexical processing may be markedly less if all possible candidates are activated. One solution to this problem is if the visual system uses prime length information to reduce the number of candidates to a more manageable amount. Here, we investigated in two masked priming experiments whether prime length and orthographic information combine to facilitate target word recognition. In Experiment 1, we showed that the efficiency of visual word recognition is not influenced by the length of primes alone. However, when combined with orthographically related primes, word length coding is preserved. In Experiment 2, we investigated whether length priming affects recognition of short and long words differently. Results showed that only short words benefit from a same-length orthographically related prime, and that the priming effect does not generalise to longer words. These results suggest that the length of a word is not an essential feature in lexical processing, but that it can facilitate recognition by constraining the activation of orthographically related words. 相似文献
274.
Eugene C. McDonald Jr. 《International journal of group psychotherapy》2013,63(1):59-63
Though similar to traditional group psychotherapy in many respects, a coping skill training approach differs principally in several areas and technically in many more. Coping skill training group therapy tends to employ many concrete intervention strategies to enhance various aspects of process, drawing on ongoing data to evaluate group interaction and individual responses. The approach draws more heavily on cognitive, modeling, reinforcement, and problem-solving procedures to achieve specifically determined goals, and it depends less on interpretive and confrontative methods. The author discusses a wide range of techniques to show the benefits of this approach. 相似文献
275.
The relationship between face recognition and likability was investigated in three experiments. Subjects were asked to rate the likability of faces presented to them and then were tested on their ability to recognize the same faces. In Experiments 1 and 2, we used the subjects' individual ratings of likability to form idiocentric groups of faces (two groups, likable/unlikable, Experiment 1; three groups, likable/neutral/unlikable, Experiment 2). In Experiment 1, likable faces were found to be recognized more readily than were faces less likable. Experiment 2 revealed that the faces judged least likable were significantly less well remembered than neutral or more likable faces. In Experiment 3, a group mean for each face's likability was determined, and the faces were divided into quartiles according to the group mean scores. Again, the subjects' recognition responses for unlikable faces were at a lower level than for faces rated higher in likability. Experiments 2 and 3 found no difference in recognition memory between neutral and more likable faces. The results confirmed the notion that likability judgments (emotionality) play a mediating role in recognition. 相似文献
276.
Kathleen E. Erskine Nadia Z. Hidayatallah Christine A. Walsh Thomas V. McDonald Lilian Cohen Robert W. Marion Siobhan M. Dolan 《Journal of genetic counseling》2014,23(5):849-859
Genetic testing is becoming increasingly available for cardiac channelopathies, such as long QT syndrome and Brugada syndrome, which can lead to sudden cardiac death. Test results can be used to shape an individual’s medical management and to identify at-risk family members. In our qualitative study, all participants had a personal or family history of a diagnosed cardiac arrhythmia syndrome or sudden cardiac death. Open-ended interviews were conducted individually and in focus groups. Interviews were audio recorded, transcribed verbatim, and analyzed using a qualitative grounded-theory approach. Of 50 participants, 37 described their motivations for pursuing genetic testing for long QT syndrome or another cardiac channelopathy. Participants’ motivations included: to find an explanation for a family member’s sudden death, to relieve uncertainty regarding a diagnosis, to guide future medical management, to allay concern about children or other family members, and to comply with recommendations of physicians or family members. Perceived reasons not to pursue genetic testing included denial, fear, and lack of information. The genetic counseling and informed consent process can be enhanced by understanding and addressing an individual’s internal and external motivations either for or against pursuing genetic testing. 相似文献
277.
Eileen McDonald Amanda Lamb Barbara Grillo Lee Lucas Susan Miesfeldt 《Journal of genetic counseling》2014,23(2):221-228
This work examined acceptability of cancer genetic counseling models of service delivery among Maine residents at risk for hereditary cancer susceptibility disorders. Pre-counseling, participants ranked characteristics reflecting models of care from most to least important including: mode-of-communication (in-person versus telegenetics), provider level of training (genetic specialty versus some training/experience), delivery format (one-on-one versus group counseling), and location (local versus tertiary service requiring travel). Associations between models of care characteristic rankings and patient characteristics, including rural residence, perceived cancer risk, and perceived risk for a hereditary cancer risk susceptibility disorder were examined. A total of 149/300 (49.7 % response rate) individuals from 11/16 Maine counties responded; 30.8 % were from rural counties; 92.2 % indicated that an important/the most important model of care characteristic is provider professional qualifications. Among other characteristics, 65.1 % ranked one-on-one counseling as important/the most important. In-person and local counseling were ranked the two least important characteristics (51.8 % and 52.1 % important/the most important, respectively). Responses did not vary by patient characteristics with the exception of greater acceptance of group counseling among those at perceived high personal cancer risk. Cancer telegenetic services hold promise for access to expert providers in a one-on-one format for rurally remote clients. 相似文献
278.
279.
Although evidence suggests that the dorsal striatum contributes to multiple learning and memory functions, there nevertheless remains considerable disagreement on the specific associative roles of different neuroanatomical subregions. We review evidence indicating that the dorsolateral striatum (DLS) is a substrate for stimulus–response habit formation – incremental strengthening of simple S–R bonds – via input from sensorimotor neocortex while the dorsomedial striatum (DMS) contributes to behavioral flexibility – the cognitive control of behavior – via prefrontal and limbic circuits engaged in relational and spatial information processing. The parallel circuits through dorsal striatum interact with incentive/affective motivational processing in the ventral striatum and portions of the prefrontal cortex leading to overt responding under specific testing conditions. Converging evidence obtained through a detailed task analysis and neurobehavioral assessment is beginning to illuminate striatal subregional interactions and relations to the rest of the mammalian brain. 相似文献
280.
Fertility and intergroup bias in racial and minimal-group contexts: evidence for shared architecture
Recent research has shown that White women's bias against Black men increases with elevated fertility across the menstrual cycle. We demonstrate that the association between fertility and intergroup bias is not limited to groups defined by race, but extends to group categories that are minimally defined, and may depend on the extent to which women associate out-group men with physical formidability. In Study 1, Black and White women with strong associations between the racial out-group and physical formidability displayed greater bias against out-group men as conception risk increased. Study 2 replicated these results in a minimal-group paradigm. These findings are consistent with the notion that women may be endowed with a psychological system that generates intergroup bias via mechanisms that rely on categorization heuristics and perceptions of the physical formidability of out-group men, particularly when the costs of sexual coercion are high. 相似文献