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861.
Current interpretation of the object retrieval task (Diamond, 1990) as an infant assessment of response inhibition requires evidence that younger infants make more ineffective attempts to retrieve toys through clear barriers. On two 30-second trials, infants (9 or 11 months of age) saw an inaccessible toy in the front or back of a clear box. The location of the infants touches corresponded with the toy's location and, on the second trial, the younger infants touched the box more. In previous research nonhuman primates with orbital-frontal, but not dorsa-lateral, lesions also made ineffective barrier touches. The current developmental decreases in barrier touches may selectively tap developmental increases in inhibitory control supported by the developing orbital-frontal cortex. 相似文献
862.
Muhammad Ajmal Choudhary Julia Kundin Heike Emmerich 《Philosophical Magazine Letters》2013,93(9):451-458
Recently, we derived a generalized model for isotropic as well as anisotropic crystal lattice systems of arbitrary Poisson's ratio within the framework of the continuum phase-field crystal (PFC) approach [R. Prieler, J. Hubert, D. Li, B. Verleye, R. Haberkern, H. Emmerich, J. Phys.: Condens. Matter 21 (2009) p.464110] and showed how its parameters can be derived from classical density functional theory [M.A. Choudhary, D. Li, H. Emmerich and H. Löwen, J. Phys.: Condens. Matter 23 (2011) p.265005]. Here, we present a general procedure to model anisotropic material systems of arbitrary Poisson's ratios. In that way we can for the first time identify PFC solutions of arbitrary Poisson's ratios and thereby extend the applicability of the PFC method to a larger class of material systems. 相似文献
863.
Katie E. Cherry Karri S. Hawley Erin M. Jackson Julia Volaufova L. Joseph Su S. Michal Jazwinski 《Memory (Hove, England)》2013,21(7):728-741
We examined memory for pictures and words in middle-age (45–59 years), young-old (60–74 years), old-old (75–89 years), and the oldest-old adults (90–97 years) in the Louisiana Healthy Aging Study. Stimulus items were presented and retention was tested in a blocked order where half of the participants studied 16 simple line drawings and the other half studied matching words during acquisition. Free recall and recognition followed. In the next acquisition/test block a new set of items was used where the stimulus format was changed relative to the first block. Results yielded pictorial superiority effects in both retention measures for all age groups. Follow-up analyses of clustering in free recall revealed that a greater number of categories were accessed (which reflects participants’ retrieval plan) and more items were recalled per category (which reflects participants’ encoding strategy) when pictures served as stimuli compared to words. Cognitive status and working memory span were correlated with picture and word recall. Regression analyses confirmed that these individual difference variables accounted for significant age-related variance in recall. These data strongly suggest that the oldest-old can utilise nonverbal memory codes to support long-term retention as effectively as do younger adults. 相似文献
864.
Christian Frings Ariane Göbel Frank Mast Julia Sutter Christina Bermeitinger Dirk Wentura 《Memory (Hove, England)》2013,21(6):585-596
Marginally perceptible prototypes as primes lead to slowed reactions to related category exemplars as compared to unrelated ones. This at first glance counterintuitive finding has been interpreted as evidence for a particular mechanism of lateral inhibition, namely the centre surround inhibition mechanism. We investigated the semantic surround of category labels by experimentally manipulating the prototypicality of stimuli. Participants first learned two new categories of fantasy creatures in a 5-day-long learning phase before they worked through a semantic priming task with the category prototypes as primes and category exemplars as targets. For high-prototypical targets we observed benefit effects from related primes, whereas for low-prototypical targets we observed cost effects. The results define when the centre surround inhibition mechanism is applied, and furthermore might explain why previous studies with word stimuli (i.e., material that prevents experimental manipulation of prototypicality) observed mixed results concerning the prototypicality of targets. 相似文献
865.
C.R. Snyder David B. Feldman Julia D. Taylor Lisa L. Schroeder Virgil H. Adams III 《Applied and Preventive Psychology》2000,9(4):249-269
From its most famous tale, that of Pandora, hope was meant to prevent the emergence and reemergence of life difficulties. A new model defining hope as a combination of agentic pathways and goal-directed thinking is reviewed. Comparisons of the similarities of this theory to other existing theories are made. The beneficial roles of hope in primary (before the appearance of a problem) and secondary (after a problem has appeared) prevention are explored. Primary enhancement is introduced as involving those thoughts and actions that establish optimal functioning and satisfaction. Secondary enhancement is posited to describe those thoughts and actions that are undertaken over time so as to further functioning and satisfaction in order to reach peak levels. Using hope theory as a lens, these primary and secondary enhancement processes are described. The natural synergy between prevention and enhancement activities is discussed, along with the future priorities for using hope in prevention and enhancement efforts. 相似文献
866.
867.
Julia Segal 《Psychodynamic Practice》2013,19(4):487-504
Abstract The analysis of Richard, described by Melanie Klein in Narrative of a Child Analysis, gives us some insight into the effect on a child of threats to the health of his parents. His mother was involved in a road accident when Richard was 2; his father collapsed during the time of the analysis when he was 10. This paper links these events with disturbances in Richard's relation to his father and to his mother, as well as with threats to his own integrity, as demonstrated in the analysis. Richard's reversal of roles with his father and mother is discussed, as are Klein's reaction to Richard's report of finding his father ‘ill and nearly fainting’ and Richard's response to her behaviour. The paper draws attention to the way in which a child's reaction to the ill health of one parent can affect relations with both parents, as well as disturbing his sense of himself. 相似文献
868.
Botvinick, Cognitive, Affective, & Behavioral Neuroscience 7:356–366 (2007) recently suggested that competing theories of the monitoring function of the anterior cingulate cortex (ACC) for cognitive control might converge on the detection of aversive signals in general, implying that response conflicts, a known trigger of ACC activation, are aversive, too. Recent evidence showing conflict priming (i.e., faster responses to negative targets after conflict primes) directly supports this notion but remains inconclusive with regard to possible confounds with processing fluency. To this end, two experiments were conducted to offer more compelling evidence for the negative valence of conflicts. Participants were primed by (conflict and nonconflict) Stroop stimuli and subsequently had to judge the valence of neutral German words (Experiment 1a) or Chinese pictographs (Experiment 1b). Results showed that conflict, as compared with nonconflict, primes led to more negative judgments of subsequently presented neutral target stimuli. The findings will be discussed in the light of existing theories of action control highlighting the role of aversive signals for sequential processing adjustments. 相似文献
869.
Julia R. L. Schirm 《Journal of constructivist psychology》2013,26(1):69-73
Abstract Reflections Upon Reflections Research As Praxis: Lessons From Programmatic Research In Therapeutic Practice Research in Therapeutic Practice edited by Lisa Tsoi Hoshmand and Jack Martin New York: Teachers College Press, 1995, 252 pp. Revisioning Supervision Visual and Active Supervision New York: Norton, 1995, 256 pp. by Antony Williams 相似文献
870.
Cynthia B. Eriksson Barbara Lopes Cardozo Frida Ghitis Miriam Sabin Carol Gotway Crawford Julia Zhu 《Journal of aggression, maltreatment & trauma》2013,22(6):660-680
Nongovernmental organizations (NGOs) serve Iraqis living in Jordan as “guests.” In 2008, 258 Jordanian humanitarian staff and Iraqi volunteers working for NGOs completed a needs assessment survey. Work characteristics, stressors, and support variables were evaluated regarding their influence on depression, anxiety, post-traumatic stress disorder (PTSD), and burnout through multivariate logistic regressions. There was a significant difference in depression, anxiety, and burnout across nationality. Traumatic exposure increased the risk for anxiety, depression, and PTSD. Working longer in the humanitarian sector was associated with less risk of anxiety and depression, and lower social support was a risk for anxiety. Managers were at higher risk for burnout, and low team cohesion was a risk for burnout. Implications for aid organizations are discussed. 相似文献