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861.
John J. Buchanan Young U. Ryu 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2005,58(5):769-787
Adaptive behaviour in bimanual coordination was examined with the use of a bimanual circle-tracing task. Circle diameter and tactile information were manipulated to form four tracing conditions: tracing a pair of 3-cm diameter circles with the tips of the index fingers (3F) or hand-held styli (3S) and tracing a pair of 10-cm diameter circles with the tips of the index fingers (10F) or hand-held styli (10S). Movement frequency was increased in all conditions. In the 3F, 3S, and 10S tracing conditions, an abrupt transition from asymmetric to symmetric coordination was the main adaptive response, while in the 10F tracing condition, phase wandering was the main adaptive response. Enhancement of fluctuations in relative phase, a signature of loss of stability, occurred before the transition from asymmetric to symmetric coordination. Movement frequency and movement amplitude interact as control parameters in this task. The results are discussed with reference to tactile surface contact and joint motion as sources of sensory information that can be used to stabilize bimanual coordination patterns. The presence or absence of tactile information is directly linked to the specific form of adaptive behaviour (phase transition or phase wandering) that emerges as a function of required movement amplitude and required pacing frequency. 相似文献
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G Haiduk K Janik U Kleinpeter 《Psychiatrie, Neurologie, und medizinische Psychologie》1983,35(7):405-408
The Order on Military Medical Expertise dated 27 August 1975 lists the brain-organic psychosyndrome among the diagnoses restricting fitness for military service. Who gives the diagnosis, and who decides on the degree of fitness? Practice shows that in this respect there is considerable uncertainty. Attention is drawn to the obligations the neuropsychiatrist has to fulfill vis à vis the registration board. 相似文献
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Mauricio E. Garrido Vásquez Wolfgang Kälin Kathleen Otto Janne Sadlowski Maria U. Kottwitz 《Psychologie appliquee》2019,68(1):26-52
The long-term negative consequences of job insecurity on employees’ health and well-being have been demonstrated by several studies, but there is very little evidence on the daily experience of job insecurity and on the factors that may influence it. Therefore, we investigated whether short-term changes occur in the experience of job insecurity and whether these are influenced by daily co-worker conflicts. We carried out a diary study, in which 66 employees answered a questionnaire over the course of five working days. We conducted a multilevel analysis in which we included co-worker conflicts as a predictor, and type of contract, emotional stability, and aggregated job insecurity perceptions as control variables. Our results revealed that job insecurity varies on a daily level, and that 23 per cent of the variance could be explained at a within-person level. Co-worker conflicts were a significant positive predictor for perceived job insecurity in subsequent days after controlling for aggregated job insecurity perceptions at person level. Reversed causation was not found. Practical implications for organisations should focus on the promotion of positive social relations in the work environment in order to mitigate or avoid the negative consequences of social stressors in uncertain times. 相似文献