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171.
Kara J. Blacker Akiko Ikkai Balaji M. Lakshmanan Joshua B. Ewen Susan M. Courtney 《Cognitive, affective & behavioral neuroscience》2016,16(5):888-901
Previous research has demonstrated distinct neural correlates for maintenance of abstract, relational versus concrete, sensory information in working memory (WM). Storage of spatial relations in WM results in suppression of posterior sensory regions, which suggests that sensory information is task-irrelevant when relational representations are maintained in WM. However, the neural mechanisms by which abstract representations are derived from sensory information remain unclear. Here, using electroencephalography, we investigated the role of alpha oscillations in deriving spatial relations from a sensory stimulus and maintaining them in WM. Participants encoded two locations into WM, then after an initial maintenance period, a cue indicated whether to convert the spatial information to another sensory representation or to a relational representation. Results revealed that alpha power increased over posterior electrodes when sensory information was converted to a relational representation, but not when the information was converted to another sensory representation. Further, alpha phase synchrony between posterior and frontal regions increased for relational compared to sensory trials during the maintenance period. These results demonstrate that maintaining spatial relations and locations in WM rely on distinct neural oscillatory patterns. 相似文献
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173.
Maria Testa Weijun Wang Jaye L. Derrick Cory Crane Kenneth E. Leonard R. Lorraine Collins Courtney Hanny Mark Muraven 《Aggressive behavior》2020,46(6):547-558
Intimate relationship functioning depends upon the ability to accommodate one's partner and to inhibit retaliatory and aggressive impulses when disagreements arise. However, accommodation and inhibition may be difficult when self-control strength is weak or depleted by prior exertion of self-control. The present study considered whether state self-control depletion prospectively predicts male and female self-reports of anger with partner and arguing with partner. Consistent with the I3 Model (Finkel, 2014, Adv Exp Soc Psychol, 49, 1–104), we also considered whether the association between elevated anger and arguing (i.e., instigation) and partner aggression was stronger when state self-control (i.e., inhibition) was depleted or among people high in negative urgency. In this ecological momentary assessment (EMA) study, heavy drinking married and cohabiting heterosexual couples (N = 191) responded to three randomly signaled reports each day for 30 days. Depletion predicted anger and arguing with partners both cross-sectionally and prospectively for men and women. However, after controlling for prior levels of anger and arguing, these effects were diminished, and supplemental analyses revealed that anger and arguing with partner predicted subsequent depletion. Anger and arguing were strongly associated with concurrent reports of partner aggression perpetration and victimization (verbal and/or physical). However, neither state self-control depletion nor negative urgency moderated these effects. Overall, results suggest a modest impact of depletion on daily couple functioning as well as a potential cyclical effect of arguing on depletion. 相似文献
174.
Robin Hausheer Diana M. Doumas Susan Esp Courtney Cuffee 《Journal of Addictions & Offender Counseling》2016,37(1):16-34
This study examined parental predictors of alcohol use and alcohol‐related consequences among 9th‐grade students (N = 296). Parental disapproval of teen drinking and quality of parent–child general communication were significant predictors of drinking behaviors. Implications for counselors are discussed. 相似文献
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176.
Cognitive theories suggest that social anxiety is maintained, in part, by an attentional bias toward threat. Recent research shows that a single-session of attention modification training (AMP) reduces attention bias and vulnerability to a social stressor (Amir, Weber, Beard, Bomyea, &; Taylor, 2008). In addition, exercise may augment the effects of attention training by its direct effects on attentional control and inhibition, thereby allowing participants receiving the AMP to more effectively disengage attention from the threatening cues and shift attention to the neutral cues. We attempted to replicate and extend previous findings by randomizing participants (N = 112) to a single-session of: a) Exercise + attention training (EX + AMP); b) Rest + attention training (REST + AMP); c) Exercise + attention control condition (EX + ACC); or d) Rest + attention control condition (REST + ACC) prior to completing a public speaking challenge. We used identical assessment and training procedures to those employed by Amir et al. (2008). Results showed there was no effect of attention training on attention bias or anxiety reactivity to the speech challenge and no interactive effects of attention training and exercise on attention bias or anxiety reactivity to the speech challenge. The failure to replicate previous findings is discussed. 相似文献
177.
Courtney Wilder 《Dialog》2012,51(3):202-211
Abstract : The existentialist interpretation of the biblical texts offered by Protestant theologian Paul Tillich is deeply problematic in its treatment of disability, especially mental illness. Theologian Nancy Eiesland argues against a conflation of sin and illness, and proposes the symbol of the disabled God as a source for a liberation theology of disability. Reading the biblical texts existentially, as Tillich suggests, can advance Eiesland's Christology, while her critique of Christian teaching on disability offers a correction for Tillich. 相似文献
178.
Judging the laterality of a hand seen at unanticipated orientations evokes a robust feeling of bodily movement, even though no movement is produced. In two experiments, we tested a novel hypothesis to explain this phenomenon: A hand's laterality is determined via a multisensory binding of the visual representation of the seen hand and a proprioceptive representation of the observer's felt hand, and the felt "movement" is an obligatory aftereffect of intersensory recalibration. Consistent with the predictions implied by such a cross-modal mechanism, our results in Experiment 1 showed that manipulating observers' selective attention can evoke illusory feelings of movement in the "wrong" hand (i.e., the hand whose laterality does not match that of the stimulus). In Experiment 2, these illusions were readily extinguished in conditions in which binding was predicted to fail, a result indicating that cross-modal binding was necessary to produce them. These results are not explained by imagery, a mechanism widely assumed to account for how hand laterality is identified. 相似文献
179.
Gavin CF Rubio MD Young E Miller C Rumbaugh G 《Learning & memory (Cold Spring Harbor, N.Y.)》2012,19(1):9-14
Learning induces dynamic changes to the actin cytoskeleton that are required to support memory formation. However, the molecular mechanisms that mediate filamentous actin (F-actin) dynamics during learning and memory are poorly understood. Myosin II motors are highly expressed in actin-rich growth structures including dendritic spines, and we have recently shown that these molecular machines mobilize F-actin in response to synaptic stimulation and learning in the hippocampus. In this study, we report that Myosin II motors in the rat lateral amygdala (LA) are essential for fear memory formation. Pretraining infusions of the Myosin II inhibitor, blebbistatin (blebb), disrupted long term memory, while short term memory was unaffected. Interestingly, both post-training and pretesting infusions had no effect on memory formation, indicating that Myosin II motors operate during or shortly after learning to promote memory consolidation. These data support the idea that Myosin II motor-force generation is a general mechanism that supports memory consolidation in the mammalian CNS. 相似文献
180.
Natalie R. Stevens Maisa S. Ziadni Teresa A. Lillis James Gerhart Courtney Baker Stevan E. Hobfoll 《Anxiety, stress, and coping》2013,26(6):679-693
ABSTRACTBackground and Objectives: Medical patients often have trauma histories that are not routinely assessed, which can adversely affect health outcomes. Despite growing awareness of this issue, there is limited understanding of factors that influence provider competency in trauma-informed care (TIC). The study examined healthcare providers’ personality traits in relation to their sense of TIC efficacy, taking into account perceived barriers to TIC and professional quality of life.Study Design: The study used cross-sectional survey methods to examine our central hypothesis that provider personality traits and perceived barriers to TIC would be associated with TIC-efficacy, and to explore interactions among study variables.Methods: Survey data were collected from 172 healthcare providers examining TIC knowledge, TIC-efficacy, perceived barriers to TIC, personality traits, and professional quality of life.Results: TIC-efficacy was positively correlated with “intellectence/openness” and inversely correlated with “neuroticism” and perceived lack of training as a barrier. “Intellectence/openness” interacted with perceived lack of training to predict TIC-efficacy, suggesting that providers with lower “intellectence/openness” report greater TIC-efficacy when lack of training is not perceived as a barrier.Conclusions: Provider personality traits and perceived barriers to TIC appear related to providers’ TIC-efficacy. Implications for overcoming barriers to TIC through training and implementation are discussed. 相似文献