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611.
Microcomputers have become increasingly useful in clinical settings, performing functions ranging from test administration to composition of narrative reports. They may in the near future be involved in therapeutic procedures. Clinicians and researchers have begun to wonder whether a microcomputer can take over a wide range of functions in clinical psychiatric settings, becoming a versatile and cost-effective tool. This paper describes the development of a comprehensive system for research and clinical data management on a psychiatric inpatient unit. The core of the system is an Apple II-Plus microcomputer equipped with PASCAL, standard peripherals, and an inexpensive custom interface. The system has met the current data management needs of the unit, and its expandability allows planning of assessment-and treatment-related research. 相似文献
612.
Jeff Miller 《Cognitive psychology》1982,14(2):247-279
Many models of divided attention assume that signals presented on different channels produce separate activations, any one of which can initiate a response. According to these models, detection responses are especially fast when signals are presented on two channels at the same time because the system can detect a signal in either of two ways. Such models predict a testable relation among reaction time distributions for conditions in which a single signal is presented as compared with a condition in which two signals are presented, and this prediction is tested in two tasks. A bimodal detection task required a simple speeded response to either a visual or an auditory signal. A letter search task required a choice response depending on whether or not a two-letter display included the signal letter “A.” Data from both tasks are inconsistent with the prediction. When two signals are presented, responses are faster than separate-activation models can explain. The results favor “coactivation” models, in which signals presented on different channels contribute to a common pool of activation that initiates a response. 相似文献
613.
Depression and self-focused attention 总被引:3,自引:0,他引:3
Recent research on self-focused attention has indicated effects that parallel several cognitive and affective phenomena associated with depression. Specifically, discrepancies between perceived real and ideal self, increased affective response, self-attribution for negative events, and accurate self-reports occur both in depression and as a result of self-focused attention. A study is reported that investigated the relationship between depression and a measure of private self-consciousness, a dispositional measure of the tendency to attend to one's inner thoughts and feelings. As predicted, a reliable positive relationship was found. The potential role of self-focused attention in maintaining and exacerbating depression was discussed.The order of authorship was determined randomly. 相似文献
614.
Dr. Alfred A. Baumeister William E. MacLean Jr. Jeff Kelly Connie Kasari 《Journal of abnormal child psychology》1980,8(4):501-521
Stereotyped movements, such as body rocking and hand gesturing, are common among developmentally delayed children. However, very little is known concerning the naturally occurring circumstances that produce variability in this type of responding. Three relatively long-term observational studies, involving seven preschool children, each of whom exhibited multiple stereotypies, were conducted to determine the extent to which the type of activity or setting had any effect upon the rates of these responses. Repeated observations were made of each child during a variety of school activities. In two studies, adult-child interactions were also recorded. The results showed that, in general, the particular activity greatly affected rates of stereotyped behavior, although there were some marked individual differences. Moreover, in two studies variability was apparent across sessions within a particular setting. For some of the children, there was evidence that their multiple stereotypies were functionally interrelated. Adult interactions, as recorded in one study, appear to be both quantitatively and qualitatively different for stereotyping as contrasted with nonstereotyping children. An environmental analysis employing a sequential model indicated that there were teacher behaviors that affected the frequency and/or conditional probability of the child's aberrant behavior.This research was supported by P.H.S. Grant No. HD-00973. 相似文献
615.
616.
WHISTLING IN THE DARK: 总被引:2,自引:0,他引:2
Tom Pyszczynski Robert A. Wicklund Stefan Floresku Holgar Koch Gerardine Gauch Sheldon Solomon Jeff Greenberg 《Psychological science》1996,7(6):332-336
Abstract— Terror management theory posits that cultural worldviews function to provide protection against anxiety concerning human vulnerability and mortality and that their effectiveness as buffers against such anxiety is maintained through a process of consensual validation. Two field experiments were conducted to test the hypothesis that incidental reminders of one's mortality increase the need to believe that others share one's worldview. In both studies, passersby on city streets were asked to estimate the extent of social consensus for culturally relevant attitudes, 100 m before passing a funeral home, 100 m after passing a funeral home, or directly in front of a funeral home. In the first study, conducted in Germany, subjects were asked to estimate the percentage of Germans who shared their opinions about a proposal to change the German constitution to restrict the immigration of foreigners, in the second study, conducted in the United Stales, subjects were asked to estimate the percentage of Americans who shared their opinions about the teaching of Christian values in the public schools. In both studies, subjects who held the minority position on the issue estimated greater consensus for their opinions when interviewed directly in front of a funeral home than when interviewed either before or after passing it. 相似文献
617.
In two experiments, we tested whether subjects switched or shared attention between two simultaneously relevant line-length discrimination tasks. Switching models that allowed within- as well as between-trial switching were considered. In the first experiment, stimulus duration was varied randomly from trial to trial. With varied durations, many switching models predict negative contingencies: for a given duration and attentional allocation, accurate responses on one task should be associated with inaccurate responses on the other task. The results, however, showed no negative contingencies, which is consistent with sharing models. In the second experiment, stimulus duration was reduced to 20 msec, yet responses were more than 75% correct overall. This implies that information was obtained about both of the tasks within single trials, contradicting those switching models which predict that information can be obtained from, at most, one task within a period of 20 msec or less. In short, the results of both experiments support sharing models. 相似文献
618.
Pursuit tracking, a perceptual motor-skill task, has had wide application in many areas of psychology. The task is usually administered with a mechanical device in which subjects try to maintain a contact between a stylus and a disk on a rotating platter. A pursuit-tracking task that can be administered on a Macintosh computer is described. Subjects try to keep a crosshair cursor on top of a moving circular target. The cursor can be controlled by commonly used Macintosh ADB devices such as a joystick. The computer version has several important advantages: it offers more task flexibility and more accurate dependent measures of performance, and it is inexpensive. 相似文献
619.
Linda Simon Jamie Arndt Jeff Greenberg Tom Pyszczynski & Sheldon Solomon 《Journal of personality》1998,66(3):359-382
Previous terror management research has demonstrated that mildly depressed participants show a greater increase in worldview defense in response to reminders of their mortality than do nondepressed participants. Because the cultural worldview is posited to provide a meaningful conception of life, we hypothesized that mildly depressed participants who defend their worldview in response to mortality salience (MS) would increase their perception that the world is meaningful. A preliminary study first examined the Kunzendorf No Meaning Scale as a measure to assess perceptions of meaning. In the primary study, mildly depressed and nondepressed participants contemplated their own mortality or a neutral topic, evaluated two targets in a manner that either allowed them to defend their worldview or that did not, and then completed the Kunzendorf No Meaning Scale. As predicted, mildly depressed participants who had the opportunity to defend their worldview in response to mortality salience reported greater meaning in life than did mildly depressed participants who did not have the opportunity to defend their worldview, or mildly depressed participants not exposed to mortality salience. Implications for understanding and treating depression are briefly discussed. 相似文献
620.
Jeff Sigafoos Donna Roberts Donna Couzens Liliana Caycho 《Behavioral Interventions》1992,7(4):283-297
Improvements in adaptive behavior among adults with developmental disabilities often depends on the quality of instruction delivered by direct-care staff. The present study evaluated the effectiveness of a multifaceted package for improving the quality of instructional interactions among three staff/adult dyads. Instructional interactions were first analyzed to identify areas for improvement. A multifaceted intervention package consisting of inservice training, participative management, and on-going feedback was then implemented in a multiple-baseline design across dyads. The package trained staff to increase their use of time delay and reinforcement strategies and these changes were associated with greater independence in a sandwich making task among two of the three participating adults. The results suggest direct observation of existing instructional interactions may provide valuable information when training staff to implement effective habilitative programs for adults with developmental disabilities. 相似文献