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The multiple vigilance test is a 30-min signal detection task designed to assess performance. Sixty target and 180 nontarget stimuli are presented with random interstimulus intervals ranging from 4 to 11 sec. Subjects respond by pressing the spacebar (or microswitch in an alternate version of the program) when they see the masking pattern transformed into the target. This vigilance test is used in conjunction with measures of physiological sleepiness (Multiple Sleep Latency Test) and subjective sleepiness (Stanford Sleepiness Scale). This behavioral information concerning manifest sleepiness provides a more complete picture of a subject’s state of alertness. The assessment of vigilance during long, monotonous, nonstimulating tasks is clinically important in patients with disorders of sleep and arousal. 相似文献
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Elsa Arroyos-Jurado Jane S. Paulsen Kenneth W. Merrell Scott D. Lindgren Jeffrey E. Max 《Journal of School Psychology》2000,38(6):116-587
School-aged children with a traumatic brain injury (TBI) require extraordinary effort and energy from individuals in their school, home, and community. The purpose of this study was to examine the academic, behavioral, and social outcomes of a cohort of children and adolescents following TBI. A comprehensive assessment of cognitive functioning, achievement, and adaptive behavior was administered to 43 school-aged children 2 years after their TBI. Premorbid functioning for each participant was obtained from state-mandated test scores assessed prior to the TBI. The predictive utility of premorbid functioning, TBI severity, and age at injury were examined. Findings revealed that premorbid functions were significant predictors of reading and spelling achievement and adaptive functioning. Severity of injury was predictive of adaptive functioning. Implications of findings include program development, reintegration into school, and educating parents and teachers. 相似文献
125.
Chang-Jiang Dong Nicholas V. Swindale Pierre Zakarauskas Vincent Hayward Max S. Cynader 《Attention, perception & psychophysics》2000,62(5):1099-1111
In this paper, the auditory motion aftereffect (aMAE) was studied, using real moving sound as both the adapting and the test stimulus. The sound was generated by a loudspeaker mounted on a robot arm that was able to move quietly in three-dimensional space. A total of 7 subjects with normal hearing were tested in three experiments. The results from Experiment 1 showed a robust and reliable negative aMAE in all the subjects. After listening to a sound source moving repeatedly to the right, a stationary sound source was perceived to move to the left. The magnitude of the aMAE tended to increase with adapting velocity up to the highest velocity tested (20°/sec). The aftereffect was largest when the adapting and the test stimuli had similar spatial location and frequency content. Offsetting the locations of the adapting and the test stimuli by 20° reduced the size of the effect by about 50%. A similar decline occurred when the frequency of the adapting and the test stimuli differed by one octave. Our results suggest that the human auditory system possesses specialized mechanisms for detecting auditory motion in the spatial domain. 相似文献
126.
Individuals working in groups often egocentrically believe they have contributed more of the total work than is logically possible. Actively considering others' contributions effectively reduces these egocentric assessments, but this research suggests that undoing egocentric biases in groups may have some unexpected costs. Four experiments demonstrate that members who contributed much to the group outcome are actually less satisfied and less interested in future collaborations after considering others' contributions compared with those who contributed little. This was especially true in cooperative groups. Egocentric biases in responsibility allocation can create conflict, but this research suggests that undoing these biases can have some unfortunate consequences. Some members who look beyond their own perspective may not like what they see. 相似文献
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Max A. Freund 《Studia Logica》2001,69(3):351-380
With the past and future tense propositional operators in its syntax, a formal logical system for sortal quantifiers, sortal identity and (second order) quantification over sortal concepts is formulated. A completeness proof for the system is constructed and its absolute consistency proved. The completeness proof is given relative to a notion of logical validity provided by an intensional semantic system, which assumes an approach to sortals from a modern form of conceptualism. 相似文献
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Max Beer 《Current psychology (New Brunswick, N.J.)》2007,26(3-4):191-205
In 1933 Hitler and the Nazi party came to power in Germany. At the same time, in Canada in general and in Montreal in particular, anti-Semitism was becoming more widespread. The Canadian Jewish Congress, as a result of the growing tension in Europe and the increase in anti-Semitism at home, was reborn in 1934 and became the authoritative voice of Canadian Jewry. During World War II the Nazis embarked on a campaign that resulted in the systematic extermination of millions of Jews. This article focuses on the Montreal Jewish community, its leadership, and their response to the fate of European Jewry. The study pays particular attention to the Canadian Jewish Congress which influenced the outlook of the community and its subsequent actions. As the war progressed, loyalty to Canada and support for the war effort became the overriding issues for the community and the leadership and concern for their European brethren faded into the background. 相似文献