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Lisa Emery Thomas M. Hess Tonya Elliot 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(6):677-698
ABSTRACT Recent research suggests that affective and motivational processes can influence age differences in memory. In the current study, we examine the impact of both natural and induced mood state on age differences in false recall. Older and younger adults performed a version of the Deese–Roediger–McDermott (DRM; Roediger & McDermott, 1995, Journal of Experimental Psychology: Learning, Memory, and Cognition, 21, 803) false memory paradigm in either their natural mood state or after a positive or negative mood induction. Results indicated that, after accounting for age differences in basic cognitive function, age-related differences in positive mood during the testing session were related to increased false recall in older adults. Inducing older adults into a positive mood also exacerbated age differences in false memory. In contrast, veridical recall did not appear to be systematically influenced by mood. Together, these results suggest that positive mood states can impact older adults' information processing and potentially increase underlying cognitive age differences. 相似文献
274.
The present study examined the effect of visual feedback on the ability to recognise and consolidate pitch information. We trained two groups of nonmusicians to play a piano piece by ear, having one group receiving uninterrupted audiovisual feedback, while allowing the other only to hear, but not see their hand on the keyboard. Results indicate that subjects for whom visual information was deprived showed significantly poorer ability to recognise pitches from the musical piece they had learned. These results are interesting since pitch recognition ability would not intuitively seem to rely on visual feedback. In addition, we show that subjects with previous experience in computer touch-typing made fewer errors during training when trained with no visual feedback, but did not show improved pitch recognition ability posttraining. Our results demonstrate how sensory redundancy increases robustness of learning, and further encourage the use of audiovisual training procedures for facilitating the learning of new skills. 相似文献
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Meaningful parallels exist between the coordinative structures (CSs) involved in planning and controlling complex actions of the body (limbs, torso, head, face, eyes) in service of both mechanical (e.g., manipulation and/or transport of environmental objects) and social (e.g., inter-agent coordination) functions. While early treatments focused on CS state-dynamics and parameter-dynamics, attention has focused more recently on CS graph-dynamics. We describe a coordinative structure graph (CSG) perspective that brings affordances and effectivities into a dynamical systems framework in which a) task-specific perceptual and physical links are created between an agent's end-effectors and environmental objects/surfaces during the graph-dynamics of CSG assembly; and b) these dynamics embed the agent in his/her environmental context such that the agent+environment system functions as a higher-order task-specific unit. Additionally, we describe a 3-tuple formalism for CSs that govern simple, single actions; such 3-tuples are viewed as modular planning graphs that can self-assemble under a compositional graph-dynamics into multi-action chains or hierarchical structures, and that may inform future developments of CS-based action grammars. 相似文献
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Bedi S Nelson EC Lynskey MT McCutcheon VV Heath AC Madden PA Martin NG 《Suicide & life-threatening behavior》2011,41(4):406-415
Earlier studies have found an elevated risk for psychopathology and suicidal behavior associated with childhood sexual abuse (CSA); however, the degree to which risk is mediated by depression and posttraumatic stress disorder (PTSD) in women and men remains unclear. We examined these issues in data from a family study of childhood maltreatment (N = 2,559). We found significant CSA-associated risk for depression, PTSD, and suicidal behavior for women and men. In survival analyses controlling for these disorders, we observed persistent but somewhat reduced CSA-associated risk for suicidal ideation and suicide attempt. Our findings suggest that these disorders partially mediate CSA-associated risk. 相似文献
279.
Individual differences in the development of sensation seeking and impulsivity during adolescence: further evidence for a dual systems model 总被引:1,自引:0,他引:1
Consistent with social neuroscience perspectives on adolescent development, previous cross-sectional research has found diverging mean age-related trends for sensation seeking and impulsivity during adolescence. The present study uses longitudinal data on 7,640 youth from the National Longitudinal Study of Youth Children and Young Adults, a nationally representative sample assessed biennially from 1994 to 2006. Latent growth curve models were used to investigate mean age-related changes in self-reports of impulsivity and sensation seeking from ages 12 to 24 years, as well individual differences in these changes. Three novel findings are reported. First, impulsivity and sensation seeking showed diverging patterns of longitudinal change at the population level. Second, there was substantial person-to-person variation in the magnitudes of developmental change in both impulsivity and sensation seeking, with some teenagers showing rapid changes as they matured and others maintaining relatively constant levels with age. Finally, the correlation between age-related changes in impulsivity and sensation seeking was modest and not significant. Together, these results constitute the first support for the dual systems model of adolescent development to derive from longitudinal behavioral data. 相似文献
280.
Examinations of goal-directed movements reveal a process of control that operates to make adjustments on the basis of the expected visual afference associated with the limb's movement. This experiment examined the impact of perturbations to the perceived and actual velocity of aiming movements when each was presented alone or in tandem with the other. Perturbations to perceived velocity were achieved by translating the background over which aiming movements were performed. An aiming stylus that discharged air either in the direction of the movement or in the direction opposite the movement generated the actual velocity perturbations. Kinematic analyses of the aiming movements revealed that only the actual perturbation influenced the control of early movement trajectories. The results are discussed with respect to the influence that visual information has on the control exerted against physical perturbations. Speculations are raised regarding how potential for perturbations influences the strategies adopted for minimizing their impact. 相似文献