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201.
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
202.
Richards AK 《Journal of the American Psychoanalytic Association》2003,51(4):1199-1218
The history of ideas about perversion is considered, along with an examination of whether the concept is clinically useful. Three cases of varying degrees of severity are presented, illustrating the clinical value of the concept in the analytic situation. All three cases are women, and the particular usefulness of the concept of perversion for women is noted. The place of aggression and the pleasure resulting from its expression are highlighted. 相似文献
203.
Eli Kramer 《Metaphilosophy》2023,54(4):373-376
This introductory piece provides context for this symposium on Richard Shusterman's new book, Philosophy and the Art of Writing. The piece reflects on the symposium genre from Plato's classic dialogue to its form today. It claims that Shusterman's work asks us to take this kind of philosophical writing more seriously, and for that reason the symposium itself has taken on a different structure. The piece discusses how each of the contributors responding to the book (with Shusterman leading the way), Eli Kramer, Randall Auxier, and Charles Johnson, have engaged in practicing, nurturing, and supporting broad modes of philosophical writing, and in turn why they have chosen to do so in this context. 相似文献
204.
205.
The present study examined the relationship between individuals social motives or values and their level of cooperation during a simulated resource conservation crisis Prior to the resource task, a decomposed game procedure was used to classify subjects as cooperatively or noncooperatively oriented Subjects, in groups of six, were led to believe that they shared access to a replenishing resource pool via a system of linked computer terminals Across a series of trials, subjects had to choose between maximizing their own short-term gain and exercising personal restraint to preserve the collective resource False feedback about the group's use of the resource and the rate at which it was replenished was varied to indicate either that the resource was being sustained or that collective overuse was rapidly depleting it As predicted, cooperatively oriented individuals responded to resource depletion with greater self-restraint than did those classified as noncooperators Analvsis of pretrial and posttrial data indicated that social values were also related to individuals expectations about the task and perceptions of others 相似文献
206.
B I Bertenthal D R Proffitt S J Kramer 《Journal of experimental psychology. Human perception and performance》1987,13(4):577-585
Geometry informs us that there exist a large number of possible connectivity patterns consistent with a point-light display of a person walking. Yet there is only one pattern consistent with a "stick figure" representation of the human form, and that pattern is uniquely specified by those pairwise connections that remain locally rigid. In this study, sensitivity to local rigidity in biomechanical displays was investigated in 3- and 5-month-old infants. The results of Experiment 1 revealed that by 5 months of age, infants discriminate a locally rigid point-light walker display from one in which local rigidity is perturbed. In Experiment 2 we tested infants' sensitivity to the same stimuli when those stimuli were inverted. Contrary to the preceding experiment, the results revealed no evidence of discrimination. Taken together, these findings suggest that infants are sensitive to local rigidity in biomechanical displays but that this sensitivity is orientation specific. Possible mechanisms for this specificity are discussed in the context of additional constraints on the processing of biomechanical displays. 相似文献
207.
Abstract— In an effort to examine the flexibility with which attention can be allocated in visual space, we investigated whether subjects could selectively attend to multiple noncontiguous locations in the visual field We examined this issue by perching two separate areas of the visual field and requiring subjects to decide whether the letters that appeared in these locations matched or mismatched while distracters that pinned either the match or mismatch response were presented between the cued locations. If the distracters had no effect on performance, it would provide evidence that subjects can divide attention over noncontiguous areas of space. Subjects were able to ignore the distracters when the targets and distracters were presented as nooses stimuli (i e, when premises were changed into the targets and distracters). In contrast, when the targets and distracters were presented as sudden-onset stimuli, subjects were unable to ignore the distracters. These results begin to define the conditions under which attention can be flexibly deployed to multiple noncontiguous locations in the visual field. 相似文献
208.
Visual stimuli remain visible for some time after their physical offset (visible persistence) Visible persistence has been hypothesized to play an important role in determining the pattern of correspondence matching in the Ternus apparent-motion display. In this display, one or more elements reappears in overlapping locations at different times, whereas another element appears alternately to the right or the left of these elements. Usually either the elements are perceived to move coherently as a group (group motion), or one element may be perceived to hop over one or more other elements (element motion). According to the visible-persistence account of the perceptual organization of the Ternus display, element motion is seen when the temporal gap between elements in overlapping locations is small enough to be bridged by visible persistence; if it is not, group motion is seen. We conducted four experiments to test this visible-persistence account. In Experiments 1 and 2, a form correspondence cue (line length) was introduced to bias the visual system toward the element-motion interpretation, while visible persistence was either reduced or eliminated. The element-motion percept dominated despite the elimination of visible persistence. In Experiments 3 and 4, we found that Ternus elements presented without interruption, and thus presumably persisting over time, can be perceived in group motion. Together, the results indicate that visible persistence is neither necessary nor sufficient to account for the pattern of correspondence matches in the Ternus display. 相似文献
209.
Differences in lifestyle may account for a considerable portion of the reported age-related changes in overt circadian rhythmicity. By instructing a group of healthy, noninstitutionalized, elderly subjects and a group of young adults to keep a sleep-wake log for a period of two weeks, and to wear an activity monitor for an overlapping period of 11 days, we attempted to assess age-related differences in the habitual sleep-wake behavior, in particular its day-to-day variability. Four clusters of coherent variables were constructed, reflecting (1) circadian phase, (2) variability of sleep-wake behavior, (3) sleep-wake continuity and (4) subjective sleep-wake quality. The results showed that, in comparison with the young subjects, the elderly had a relatively advanced and more regular sleep-wake pattern, reported more midnight awakening and did not differ in their subjective sleep evaluation. In spite of a greater regularity in their lifestyle (which would favor a larger amplitude of the overt circadian rhythmicity) oral temperature measurements showed some evidence of a weakened 24-h periodicity in the elderly. 相似文献
210.
N. E. Downing and K. L. Roush [(1985) “From Passive Acceptance to Active Commitment: A Model of Feminist Identity Development,”The Counseling Psychologist, Vol. 13, pp. 695–709] proposed a five-level developmental model of feminist identity that charts development from passive
acceptance of traditional gender roles toward active commitment to feminist ideals and an egalitarian society. A Bargad and
J. S. Hyde [(1991) “Women’s Studies: A Study of Feminist Identity Development in Women,”Psychology of Women Quarterly, Vol. 15, pp. 181–201] and K. M. Rickard [(1989) “The Relationship of Self-Monitored Dating Behaviors to Level of Feminist
Identity on the Feminist Identity Scale,Sex Roles, Vol. 20, pp. 213–226] developed questionnaires to measure the Downing and Roush levels. The goal of the present study was
to further explore the reliability and validity of the two feminist identity development scales. Participants included 198
female students who were taking either a women’s studies class or a general psychology class. They were administered Rickard’s
and Bargad and Hyde’s scales of feminist identity development and a measure of cognitive development both at the beginning
and end of the semester. Sixty-six percent of the participants classified themselves as Caucasian, 13% as Asian, 7% as African
American, 4% as Hispanic, 3% as Indian, 5% as Other, and 2% left the item blank. Within this framework, we demonstrated support
for (1) the psychometric/statistical properties of each scale, including (a) internal consistency and reliability, (b) component
structure, (c) the relationship among the two scales, and (d) discrimination from social desirability; and (2) construct validity,
as determined by (a) distinction between general psychology students who were interested in taking a women’s studies class
in the future and those who were not, (b) the impact of a women’s studies class on feminist identity development, and (c)
relationship of the scales to a measure of cognitive development.
The authors wish to thank Richard Ashmore and Erich Labouvie for their helpful comments on an earlier version of this paper.
We also would like to thank the instructors of the general psychology and women’s studies classes, especially Barbara Balliet,
for allowing us to recruit participants in their classes. 相似文献