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521.
A recent meta-analysis (P. Verhaeghen & L. De Meersman, 1998a) revealed that older adults show a reliable but significantly reduced negative priming effect compared with young adults. The present study provides an updated quantitative review on the effect of aging on the magnitude of the negative priming effect in identity tasks. This analysis demonstrated that the negative priming effect was not significantly different between young and old adults. This result differs from P. Verhaeghen and L. De Meersman's study. The implications of this finding for inhibitory-based theories of cognitive aging are discussed. 相似文献
522.
Negative priming refers to the situation in which an ignored item on an initial prime trial suffers slowed responding when it becomes the target item on a subsequent probe trial. In this experiment (and a replication), we demonstrate two ways in which stimulus consistency (matching) governs negative priming. First, negative priming for identical words occurred only when the prime distractor changed color when it became the probe target (i.e., constant cue to read the red word); negative priming disappeared when the prime distractor retained its color as the probe target (i.e., cue switches from read the red prime word to read the white probe word). Second, negative priming occurred for identical words, but not for semantically related words, whether related categorically or associatively. This pattern of results is consistent with a memory retrieval account, but not with an inhibition account of negative priming, and casts doubt on whether there is semantic negative priming for words. 相似文献
523.
Aged rats are impaired on an attentional set-shifting task sensitive to medial frontal cortex damage in young rats 总被引:2,自引:0,他引:2 下载免费PDF全文
Normal aging is associated with disruption of neural systems that subserve different aspects of cognitive function, particularly in the hippocampus and frontal cortex. Abnormalities in hippocampal function have been well investigated in rodent models of aging, but studies of frontal cortex function in aged rodents are few. We tested young (4–5 mo old) and aged (27–28 mo old) male Long-Evans rats on an attentional set-shifting task modified slightly from previous publication. After training on two problems in which the reward was consistently associated with the same stimulus dimension, and a reversal of one problem, a new problem was presented in which the reward was consistently associated with the previously irrelevant stimulus dimension (extradimensional shift [EDS]). Aged rats as a group were significantly impaired on the EDS, although some individual aged rats performed as well as young rats on this phase. In addition, some aged rats were impaired on the reversal, although a group effect did not reach significance in this phase. Impairment in neither reversal nor EDS was associated with impairments in spatial learning in the Morris water maze. Young rats with neurotoxic lesions of medial frontal cortex are also selectively impaired on the EDS. These results indicate that normal aging in rats is associated with impaired medial frontal cortex function. Furthermore, age-related declines in frontal cortex function are independent of those in hippocampal function. These results provide a possible basis for correlating age-related changes in neurobiological markers in frontal cortex with cognitive decline. 相似文献
524.
Rachael Fox Brna Nic Giolla Easpaig Lester Watson 《American journal of community psychology》2019,63(1-2):227-238
Our collective account considers the ways community critical methodologies can inform academic endeavors. Methodology is understood to be the theorizing of methods that produce and legitimate knowledge claims. For us, community critical approaches incorporate poststructural and other forms of critical theory in the questioning of taken for granted assumptions. This forms a valuable foundation for community praxis as it focuses not just on social issues outside, but on an examination within; on the institution of psychology itself. We find “examining within” a vital process for our research, teaching, and community engagement. Above all it is important to ask whose interests are served by the construction and presentation of knowledge in particular ways. We present three pieces of practice which engaged with critical methodologies. The first examines collaborative research methodologies developed with young people in rural Australia who are primary carers for a family member. The second examines tensions involved in trying to employ critical methodologies in multi‐stakeholder work between community organizations, communities, and researchers. The third examines opportunities and barriers when employing critical methodologies in learning and teaching with undergraduate students. We reflect upon the intersecting threads of commonality and difference between them and consider the implications for practice. 相似文献
525.
Spiritual bypass is a defensive psychological posture that prevents people from feeling the pain of difficult emotions or experiences through 2 primary pathways: (a) Psychological Avoidance and (b) Spiritualizing. The authors collected a sample (783 participants) from the general population and tested a parallel mediation model in which 2 factors of spiritual bypass mediated the effect of spirituality on depression, anxiety, and stress. The results demonstrated that Psychological Avoidance and Spiritualizing partially mediated the effect of spirituality on depression and anxiety, whereas they completely mediated the effect of spirituality on stress. The findings are presented in the context of the study's limitations, and implications for clinical practice and research are provided. 相似文献
526.
Suzy J. M. A. Matthijssen Kevin van Schie Marcel A. van den Hout 《Cognition & emotion》2019,33(6):1169-1180
Both auditory and visual emotional memories can be made less emotional by loading working memory (WM) during memory recall. Taxing WM during recall can be modality specific (giving an auditory [visuospatial] load during recall of an auditory [visual] memory) or cross modal (an auditory load during visual recall or vice versa). We tested whether modality specific loading taxes WM to a larger extent than cross modal loading. Ninety-six participants undertook a visual and auditory baseline Random Interval Repetition task (i.e. responding as fast as possible to a visual or auditory stimulus by pressing a button). Then, participants recalled a distressing visual and auditory memory, while performing the same visual and auditory Random Interval Repetition task. Increased reaction times (compared to baseline) were indicative of WM loading. Using Bayesian statistics, we compared five models in terms of general and modality specific taxation. There was support for the model describing the effect on WM of dual tasking in general, irrespective of modality specificity, and for the model describing the effect of modality specific loading. Both models combined gained the most support. The results suggest a general effect of dual tasking on taxing WM and a superimposed effect of taxing in matched modality. 相似文献
527.
Dinesh J. Braganza Ralph L. Piedmont Jesse Fox Geraldine M. Fialkowski Richard M. Gray 《Journal of counseling and development : JCD》2019,97(3):293-305
This randomized clinical trial with a sample of adults (N = 129) from India explored the effects of a single core‐transformation session on symptom experience and psychological growth. The results over the total 8‐week study period indicated significant, moderate overall effect sizes (ds = 0.63 and 0.52) for symptom experience, emotional stability, affect balance, global well‐being, and purpose in life. Implications for research and clinical practice are discussed. 相似文献
528.
529.
Roger A. Dixon Diane P. Fox Lee Trevithick Rebecca Brundin 《Journal of Adult Development》1997,4(4):195-208
Collaborative problem solving occurs in situations in which two or more individuals cooperate in appraising, representing,
and solving a variety of cognitive tasks. Collaborative groups are the context for much everyday cognitive activity in adulthood.
Collaboration has been explored as a means through which older adults may maintain high levels of performance, perhaps compensating
for individual-level cognitive and neurological decline. This study explored the effects of collaboration (group size) and
adult age on solving both fixed- and unrestricted-alternatives 20 Questions tasks. Younger (M=24.3 years) and older (M=67.9 years) adults were randomly assigned to one of three homogeneous group size conditions: individuals, dyads, and tetrads.
Results indicated some dissociation between individual-level performance (poorer for older adults) and collaborative performance
(better for older adults). For the fixed-alternatives task, older adults produced more of the relatively inefficient hypothesis-scanning
questions than did younger adults. In contrast, older collaborative groups produced more of the efficient constraint-seeking
questions than hhpothesis-scanning questions, and an amount equivalent to that of younger adults. Overall performance for
the difficult unrestricted-alternatives task was less efficient for both younger and older adults. The roles of task type,
group characteristics, and adult age are discussed. 相似文献
530.
Suzy Harris 《Journal of Beliefs & Values》2015,36(3):267-275
The article explores some of the congruencies of thought and resonances in phrasing in the work of Janet Erskine Stuart, John Henry Newman and Ludwig Wittgenstein. These three writers have in common their resistance to philosophers of religion who are preoccupied with proposing arguments for the existence of God and grounds for believing in God. They also share a belief in the importance of assent and that reason and faith cannot be easily separated; that faith is always there in the background. The article is concerned primarily with the interrelationship between reason and faith across human practices and the relevance to education and how we live our lives. 相似文献