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881.
Immediately after a stimulus appears in the visual field, there is often a short period of facilitated processing of stimuli
at or near this location. This period is followed by one in which processing is impaired, rather than facilitated. This impairment
has been termed inhibition of return (IOR). In the present study, the time course of this phenomenon was examined in two ways.
(1) A graphical metaanalysis plotted the size of the effect as a function of the stimulus onset asynchrony (SOA) of the two
stimuli. This analysis showed that IOR is impressively stable for SOAs of 300-1,600 msec. It also showed that the literature
does not provide any clear sense of the duration of IOR. (2) An empirical approach was, therefore, taken to fill this gap
in our knowledge of IOR. In three experiments, IOR was tested using SOAs between 600 and 4,200 msec. IOR was robust for approximately
3 sec and appeared to taper off after this point; the observed duration varied somewhat as a function of the testing conditions.
In addition, for the first second, the degree of inhibition was inversely related to distance of the target from the original
stimulus, but for the next 2 sec this spatial distribution was not observed. Theories of the mechanisms and function of IOR
must conform to these spatial and temporal properties. 相似文献
882.
The present study examined the organization of preparatory processes that underlie set switching and, more specifically, switch costs. On each trial, subjects performed one of two perceptual judgment tasks, color or shape discrimination. Subjects also responded with one of two different response sets. The task set and/or the response set switched from one to the other after 2-6 repeated trials. Response set, task set, and double set switches were performed in both blocked and randomized conditions. Subjects performed with short (100-msec) and long (800-msec) preparatory intervals. Task and response set switches had an additive effect on reaction times (RTs) in the blocked condition. Such a pattern of results suggests a serial organization of preparatory processes when the nature of switches is predictable. However, task and response set switches had an underadditive effect on RTs in the random condition when subjects performed with a brief cue-to-target interval. This pattern of results suggests overlapping task and response set preparation. These findings are discussed in terms of strategic control of preparatory processes in set switching. 相似文献
883.
Much attention has been focused in recent years on the ethical acceptability of physicians receiving gifts from drug companies. Professional guidelines recognize industry gifts as a conflict of interest and establish thresholds prohibiting the exchange of large gifts while expressly allowing for the exchange of small gifts such as pens, note pads, and coffee. Considerable evidence from the social sciences suggests that gifts of negligible value can influence the behavior of the recipient in ways the recipient does not always realize. Policies and guidelines that rely on arbitrary value limits for gift-giving or receipt should be reevaluated. 相似文献
884.
Alterman AI McDermott PA Mulvaney FD Cacciola JS Rutherford MJ Searles JS Lynch K Cnaan A 《心理评价》2003,15(1):64-70
Alternate administration methods were tested for the Socialization (So) subscale of the California Psychological Inventory (CPI; H. G. Gough, 1994; H. G. Gough & P. Bradley, 1996) in 437 young adult men. One method administered the 46 CPI-So items in isolation from the CPI, whereas the 2nd method administered the 46 items embedded in the CPI. External validity measures of antisociality were also administered over the 2 sessions. Isolated administration produced somewhat higher internal consistency and significantly better concurrent validity and demonstrated construct validity as a measure of antisociality. Additional factor analytic studies of the CPI-So and CPI revealed that the 2 CPI-So versions had different factorial structures and that the embedded CPI-So subscale did not retain factorial integrity or an appreciable amount of reliable and uniquely interpretable variance. 相似文献
885.
886.
887.
In the standard serial reaction time (SRT) experiment, subjects are required to respond rapidly to a structured sequence of visual targets. Evidence that subjects have acquired knowledge of the structure is obtained by modifying the structured nature of the sequence and noting whether reaction times increase. In the dual-task SRT experiment, a “secondary” tone-counting task is introduced, and the extent to which learning of the “primary” target sequence is compromised is noted. Here we present data that strongly imply that while the psychologists who designed this “dual-task” experiment may have viewed it this way, this may not be the best way to characterize it. The suggestion is that this “duality” is illusory and that we should probably be treating the tone-counting task as a potential source of additional patterns of covariation in a complex, multicomponent display and not as a “secondary,” attention-diverting factor. 相似文献
888.
Zucker A 《Science and engineering ethics》2000,6(2):197-204
Examples of tipping suggest that the distinction between tipping, bribery and extortion can be questioned. Some well known
ideas about bribery will not work if extended to tipping and, indeed, these analyses may founder whether or not tipping, bribery
and extortion merge. I suggest that more case study analysis as well as a discussion of the relationship between character
and actions are needed. 相似文献
889.
890.
Arthur Niesser 《The Journal of analytical psychology》2023,68(1):71-86
The question of whether tele-analysis is an acceptable way of conducting analysis has been discussed since it has become available. Merchant (2016) and others concluded that ‘the essentials of a genuine analytic process are not necessarily precluded’ (p. 1). In this paper, the author goes a step further and examines potential advantages of tele-analysis. There may be benefits for patients with a history of physical or sexual abuse who value the distance. The potential for a ‘safe place’ for work with erotic transference is also examined. In a further section the author is interested in allowing the analyst the freedom to practise in an authentic way, congruent with their personality. Also explored is the concept of the interactive field including the technological medium, which is subject to synchronistic events. Finally, the author gives examples of a deep connection between patient and analyst which came about despite the physical distance. 相似文献