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Taverniers J Smeets T Lo Bue S Syroit J Van Ruysseveldt J Pattyn N von Grumbkow J 《Cognitive, affective & behavioral neuroscience》2011,11(3):332-343
The present field experiment examined how multi-trial visuo-spatial learning and memory performance are impacted by excessive
arousal, instigated by a potentially life-threatening event (i.e., a first parachute jump). Throughout a parachute training
activity, subjective and neuroendocrine (i.e., cortisol) stress levels were assessed of 61 male military cadets who were randomly
assigned to a control (n = 30) or a jump stress condition (n = 31). Post-stress learning and memory capacity was assessed with a 10-trial path-learning task that permitted emergence
of learning curves. Pre-activity cortisol concentrations indicated a significant neuroendocrine anticipatory stress response
in the stress group. Following parachuting, subjective stress levels and salivary cortisol reactivity differed significantly
between groups. Visuo-spatial path-learning performance was impaired significantly after jump stress exposure, relative to
the control group. Moreover, examination of the learning curves showed similar learning and memory performance at onset of
the trials, with curves bifurcating as the task became more complex. These findings are in accordance with leading theories
that acknowledge a moderating effect of task complexity. In sum, the present study extends knowledge concerning anticipatory
stress effects, endogenously instigated cortisol reactivity, and the influence of extreme arousal on visuo-spatial path learning. 相似文献
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Jill Gentile 《The International journal of psycho-analysis》2008,89(5):959-976
Elaborating upon Winnicott’s seminal contributions on the transitional object, the author proposes a conception of a transitional subject in which the patient comes into being simultaneously between private and public, subjective creation and material life, me and not‐me. By anchoring subjective creation in the real world (including the body), the patient creates a basis for authentic psychesoma as well as for both personal and symbolic contributions to the world beyond omnipotence, including the world of other subjects. In this sense, intersubjective life is seen as predicated upon transitionality, with the patient seen as simultaneously coming into being as a distinctly personal subject and, in part, as a symbol. Clinical phenomenology is described and is interpreted with respect to the need within psychoanalysis itself for a third, and for a realm of meaning‐creation that lies beyond privacy, omnipotence, and the dyad. 相似文献
25.
Terence J.G. Tracey Robert W. Lent Salvatore Soresi 《Journal of Vocational Behavior》2006,69(2):248-261
We explored the “idiothetic” cognitive structure of RIASEC occupational percepts in a sample of Italian middle and high school students over a one year period, examining the possible bidirectional linkages between cognitive-vocational structure, involvement in career exploration activities, and exposure to authoritative parenting style. The focus was on the extent to which individuals’ thinking deviates from the normative RIASEC circumplex structure. Results indicated that there was less stability in the occupational percepts of middle school students over time, but both student groups showed change in the direction of greater adherence to circular structure. In addition, deviation from the circular model was related to subsequent career exploration, and initial levels of career exploration and parental authoritativeness were predictive of later circular structure, especially in middle school students. The results support the importance of examining individual variation in cognitive-vocational structure in relation to career development models and interventions. 相似文献
26.
Kerrie G. Wilkins Sara Santilli Lea Ferrari Laura Nota Terence J.G. Tracey Salvatore Soresi 《Journal of Vocational Behavior》2014,85(3):329-338
Using a sample of 242 Italian high school students, we examined the direct relation of hope and optimism on four dimensions of career adaptability (i.e. curiosity, confidence, control, and concern) as well as the mediating effect of these four adaptability dimensions on the relations of hope and optimism on the subcomponents of satisfaction. The results of the study demonstrated that both hope and optimism significantly predicted various dimensions of career adaptability. Additionally, the degree to which hope related to students' subcomponents of satisfaction was mediated by two of the four dimensions of career adaptability (i.e. curiosity and confidence). The dimensions of adaptability did not mediate the relations of optimism on satisfaction. These findings have implications for both research and practice. 相似文献
27.
Cognitive costs of exposure to racial prejudice 总被引:1,自引:0,他引:1
This study examined how encountering racial prejudice affects cognitive functioning. We assessed performance on the Stroop task after subjects reviewed job files that suggested an evaluator had made nonprejudiced, ambiguously prejudiced, or blatantly prejudiced hiring recommendations. The cognitive impact of exposure to ambiguous versus blatant cues to prejudice depended on subjects' racial group. Black subjects experienced the greatest impairment when they saw ambiguous evidence of prejudice, whereas White subjects experienced the greatest impairment when they saw blatant evidence of prejudice. Given the often ambiguous nature of contemporary expressions of prejudice, these results have important implications for the performance of ethnic minorities across many domains. 相似文献
28.
Integrating face and voice in person perception 总被引:4,自引:0,他引:4
Integration of information from face and voice plays a central role in our social interactions. It has been mostly studied in the context of audiovisual speech perception: integration of affective or identity information has received comparatively little scientific attention. Here, we review behavioural and neuroimaging studies of face-voice integration in the context of person perception. Clear evidence for interference between facial and vocal information has been observed during affect recognition or identity processing. Integration effects on cerebral activity are apparent both at the level of heteromodal cortical regions of convergence, particularly bilateral posterior superior temporal sulcus (pSTS), and at 'unimodal' levels of sensory processing. Whether the latter reflects feedback mechanisms or direct crosstalk between auditory and visual cortices is as yet unclear. 相似文献
29.
The role of timing in the control of multijoint pointing movements was evaluated. Eight subjects performed rapid pointing movements to a variety of target locations. The subject's right arm was strapped to a 2 degrees of freedom manupilandum that permitted shoulder and elbow motion in the horizontal plane. Initial and final position of the hand and magnitude of displacement was varied to determine effects on timing characteristics. Kinematics and kinetics of the shoulder, elbow, and hand were analyzed. The hand paths and velocity profiles observed were consistent with prior reports. Multiple regression analysis of kinematic variables disclosed that timing of joint movement onset was independent of initial and final positions of the hand, but was linearly related to joint displacement: the joint that moved farther started moving first. Using computer simulations to create joint movement onset, times that were different from the observed ones always resulted in hand paths with increased curvatures and loss of the smooth velocity profiles. Secondly, a very stable, linear relationship was observed between peak velocity and displacement at both the elbow and shoulder joints. This relationship was not affected by variations in movement space. We suggest that space-time transformation based on difference in joint displacement is used to regulated timing of joint movement onset. The simulations indicate that this transformation is set to produce smooth velocity profiles. The relationships between timing of movement onset and displacement and between peak velocity and displacement complement each other: by maintaining a linear relationship between velocity and displacement, a linear space time transformation can be used to control timing. Furthermore, these relationships are probably used to simplify coordination between the moving joints. 相似文献
30.
Process of solving analogy items 总被引:1,自引:0,他引:1