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排序方式: 共有116条查询结果,搜索用时 15 毫秒
71.
The aim of this study was to observe the relationship between time limit at the minimum velocity that elicits maximal oxygen consumption (TLim-v VO2 max) and stroke rate, stroke length, and stroke index. 13 men and 10 women, highly trained swimmers, performed an intermittent incremental test for v VO2 max assessment and an all-out swim to estimate TLim-v VO2 max. The mean +/- SD TLim-v VO2 max, v VO2 max, stroke rate, stroke length, and stroke index values were 233.36 +/- 53.92 sec., 1.40 +/- .06 meter/sec., 35.58 +/- 2.89 cycles/min., 2.39 +/- .22 meter/cycle, and 3.36 +/- .41 meter2/(cycle x sec.), respectively. The correlation between TLim-v VO2 max and stroke rate was -.51 (p < .01), and values for TLim-v VO2 max with stroke length (r = .52, p < .01) and stroke index (r = .45, p < .05). These results seem to suggest that technical skill is a key factor in typical efforts requiring prolonged aerobic power. 相似文献
72.
The literature shows conflicting results regarding older adults' (OA) postural control performance. Differing task demands amongst scientific studies may contribute to such ambiguous results. Therefore, the purpose of this study was to examine the performance of postural control in older adults and the relationship between visual information and body sway as a function of task demands. Old and young adults (YA) maintained an upright stance on different bases of support (normal, tandem and reduced), both with and without vision, and both with and without room movement. In the more demanding tasks, the older adults displayed greater body sway than the younger adults and older adults were more influenced by the manipulation of the visual information due to the room movement. However, in the normal support condition, the influence of the moving room was similar for the two groups. These results suggest that task demand is an important aspect to consider when examining postural control in older adults. 相似文献
73.
Outcomes of actions, in the form of rewards and punishments, are known to shape behavior. For example, an action followed by reward will be more readily elicited on subsequent encounters with the same stimuli and context -- a phenomenon known as the law of effect. These consequences of rewards (and punishments) are important because they reinforce adaptive behaviors at the expense of competing ones, thus increasing fitness of the organism in its environment. However, it is unknown whether similar influences regulate covert mental processes, such as visual selective attention. Visual selective attention allows privileged processing of task-relevant information, while inhibiting distracting contextual elements. Using variable monetary rewards as arbitrary feedback on performance, we tested whether acts of attentional selection, and in particular the resulting aftereffects, can be modulated by their consequences. Results show that the efficacy of visual selective attention can be sensibly adjusted by external feedback. Specifically, although lingering inhibition of distractors is robust after highly rewarded selections, it is eliminated after poorly rewarded selections. This powerful feature of visual selective attention provides attentive processes with both flexibility and self-regulation properties. 相似文献
74.
75.
Joana O. Pinto Bruno Peixoto Artemisa R. Dores Fernando Barbosa 《Journal of Neuropsychology》2023,17(3):431-449
The literature on neuropsychological intervention (NI) uses a variety of terms to refer to equivalent constructs, making it difficult to compare intervention programmes and their outcomes. The purpose of this work is to propose a unified terminological framework for describing NI programmes. The terminological framework was developed based on a previous proposal for common terminology by Johnstone and Stonnington (Rehabilitation of neuropsychological disorders: A practical guide for rehabilitation professionals. Psychology Press, 2011) and driven by Cognitive Psychology concepts. The terminological framework was organized into two sections: (a) NI, which includes types of NI, methods and approaches, instructional methods, and strategies; and (b) neurocognitive functions, which include temporal and spatial orientation, sensation, perception, visuo-constructional abilities, attention, memory, language, reasoning of several sorts (e.g., abstract reasoning, and numerical reasoning), and executive functions. Most NI tasks target a main neurocognitive function, but there are underlying neurocognitive functions that may impair performance in the former. Since it is difficult to create a task that is solely focused on one neurocognitive function, the proposed terminology should not be viewed as a taxonomy, but rather as dimensional, with the same task allowing to work different functions, in varying grades. Adopting this terminological framework will allow to define the targeted neurocognitive functions more accurately and simplify the comparison between NI programmes and their outcomes. Future research should focus on describing the main techniques/strategies for each neurocognitive function and non-cognitive interventions. 相似文献
76.
Javier Andrés Gómez-Díaz Leonardo Francisco Barón-Birchenall 《Social and Personality Psychology Compass》2023,17(7):e12761
Several repercussions of the COVID-19 pandemic and its subsequent isolation period have been reported worldwide. In this paper, we analyze the behavioral and emotional effects of 1 year of coronavirus-related lockdown in Colombia. A cross-sectional correlational design was used on a sample of 1853 participants from different regions, and with different levels of education, income, and employment situations. We applied the fear of coronavirus scale, the use of preventive behaviors scale, and a scale to measure pleasant and unpleasant emotions based on the circumplex model of affect. Our data shows that women, participants who were unemployed during the lockdown, and participants that study or work in legal, computational, or related fields, have been more affected in terms of unpleasant emotions. In addition, we observed a trend towards a relation between higher income and educational levels with lower degrees of fear, higher degrees of pleasant emotions, and a greater use of preventive behaviors related to the pandemic. 相似文献
77.
Leonardo Chelazzi 《Psychological research》1999,62(2-3):195-219
Until a few years ago, visual search tasks were of exclusive pertinence to psychophysicists and cognitive psychologists trying
to understand the operating principles and computational constraints of visual perception and visual selective attention.
In recent years, cognitive neuroscience, with its powerful tools, has started to explore more directly the neuronal mechanisms
underlying search performance in humans and macaques, aiming at the same general goals. New observations from a number of
cognitive neuroscience approaches are promising a near future of great excitement in this field of research. This article
offers a critical review of some of these recent contributions and highlights some of the interpretational problems that they
pose.
Received: 20 January 1998 / Accepted: 25 September 1998 相似文献
78.
The author maintains that V.G. must be the result of a clinical examination carried out deeply, and that, therefore, an orientation diagnosis can be made only by taking into consideration the deeper inclinations of the subject, rather than his aptitudes, interests or character traits; satisfactory adjustment to work being, in fact, the consequence of an harmonious concord between the individual's professional activity and the deep inclinations of the personality while a situation of maladjustment is the consequence of a chronic frustration of a fundamental emotional need. 相似文献
79.
Suguieda DY Nunes G de Oliveira SB Dellatolas G da Paz AC Braga LW 《Behavior research methods》2008,40(2):503-511
This article describes Sarah-Pegworks, a computerized procedure for analyzing hand kinematics based on the peg-moving task. The procedure, developed in Visual Basic 6 programming language, includes (1) processing raw data from an infrared motion-tracking system, (2) identifying movement components, and (3) analyzing and presenting hand kinematic information in numerical and graphic outputs. Fifty-five normal adults set the parameters relative to filtering and movement identification. A case was presented to illustrate the clinical value of this procedure. 相似文献
80.
Fontenelle LF Lopes AP Borges MC Pacheco PG Nascimento AL Versiani M 《CNS spectrums》2008,13(2):125-130
Although much attention has been paid to patients who lack insight into their obsessional beliefs, less importance has been given to individuals with obsessive-compulsive disorder (OCD) who display perceptual disturbances typically found in psychotic disorders, including schizophrenia, schizoaffective disorders, or mood disorders with psychotic features. We would like to call the attention to a phenomenon that has been neglected in the psychiatric literature: the occurrence of hallucinations and related phenomena in patients with OCD. In this case report, we describe five clinical vignettes of patients with OCD with hallucinations in several different sensory modalities, including the auditory, the visual, the tactile, the olfactory, and the cenesthetic ones. Further psychopathological research should clarify the clinical significance of hallucinations among patients with OCD. 相似文献