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71.
Contingencies studied in lever-pressing procedures were incorporated into a popular computer game, "Star Trek," played by college students. One putative reinforcer, the opportunity to destroy Klingon invaders, was scheduled independently of responding according to a variable-time schedule that alternated unpredictably with equal periods of Klingon unavailability (mixed variable time, extinction schedule of reinforcement). Two commands ("observing responses") each produced stimuli that were either correlated or uncorrelated with the two components. In several variations of the basic game, an S-, or bad news, was not as reinforcing as an S+, or good news. In addition, in other conditions for the same subjects observing responses were not maintained better by bad news than by an uninformative stimulus. In both choices, more observing tended to be maintained by an S- for response-independent Klingons when its information could be (and was) used to advantage with respect to other types of reinforcement in the situation (Parts 1 and 2) than when the information could not be so used (Part 3). The findings favor the conditioned reinforcement hypothesis of observing behavior over the uncertainty-reduction hypothesis. This extends research to a more natural setting and to multialternative concurrent schedules of events of seemingly intrinsic value. 相似文献
72.
Experiencing two odors as a mixture can later increase their perceived similarity when presented separately. Such an increase in similarity can be used as an implicit measure of how well participants remember the mixture. Three experiments tested the resistance to interference of this effect by first giving participants exposure to two 2-odor mixtures and then presenting each odor from one mixture (interfered pair) separately many times. After the latter interference phase, participants rated the similarity of the two odors in each pair. The experiments varied in terms of the number of initial exposures to the mixtures, the number of odor presentations in the interference phase, and the control conditions employed. No difference in similarity ratings for the interfered and non-interfered pair was found in any experiment. In contrast to the lack of interference with this implicit measure, an explicit measure of memory based on participants’ ratings of odor frequency revealed that they could recall to some degree that the interfered odors had been presented alone in the second phase. These results suggest that implicit memory for odor mixtures is highly resistant to interference and is consistent with a configural encoding account of this effect. 相似文献
73.
Dehumanizing but competent: The impact of gender,illness type,and emotional expressiveness on patient perceptions of doctors 下载免费PDF全文
Samantha M. Adams Trevor I. Case Julie Fitness Richard J. Stevenson 《Journal of applied social psychology》2017,47(5):247-255
This study is the first attempt to investigate men's and women's anticipated reactions to a consultation with a doctor holding either a dehumanizing or humanistic approach to patient treatment. Participants (N = 375) read a vignette depicting a doctor's treatment philosophy—emphasizing either the metaphor of the body as a machine (dehumanizing condition) or emphasizing individual humanness (humanizing condition). They then imagined consulting the doctor about a psychological or physical illness. Although, medical dehumanization had undesirable consequences, some men rated the dehumanizing doctor as more competent than the humanizing doctor. These were men who were (a) emotionally expressive and seeking help for a psychological illness, and (b) men low in emotional expressiveness seeking help for a physical illness. 相似文献
74.
The ephemeral reward task provides a subject with a choice between two alternatives A and B. If it chooses alternative A, reinforcement follows and the trial is over. If it chooses alternative B, reinforcement follows but the subject can also respond to alternative A which is followed by a second reinforcement. Thus, it would be optimal to choose alternative B. Surprisingly, Salwiczek et al. (PLoS One 7:e49068, 2012. doi: 10.1371/journal.pone.00490682012) reported that adult fish (cleaner wrasse) mastered this task within 100 trials, whereas monkeys and apes had great difficulty with it. The authors attributed the species differences to ecological differences in the species foraging experiences. However, Pepperberg and Hartsfield (J Comp Psychol 128:298–306, 2014) found that parrots too learned this task easily. We have found that with a similar task pigeons are not able to learn to choose optimally within 400 trials (Zentall et al. in J Comp Psychol 130:138–144, 2016). In Experiment 1 of the present study, we found that rats did not learn to choose optimally in 840 trials; however, in Experiment 2 we added a prior commitment to the initial choice by increasing delay to reinforcement for the choice response from a single lever press to the first lever press after 20 s (FI20 s). In a comparable amount of training to Experiment 1, the rats learned to choose optimally. Although the use of a prior commitment increases the delay to reinforcement, it appears to reduce impulsive responding which in turn leads to optimal choice. 相似文献
75.
Young infants produce a variety of spontaneous arm and leg movements in the first few months of life. Coordination of leg joints has been extensively investigated, whereas arm joint coordination has mainly been investigated in the sitting position in the context of early reaching and grasping. The current study investigated arm and leg joint coordination of movements produced in the supine position in 10 fullterm infants aged 6, 12 and 18 weeks. Longitudinal comparisons within limbs (intralimb) as well as between limbs (interlimb, ipsilateral and contralateral) were made as well as an exploration of differences in the development for boys and girls. The relationship between the joint angles was examined by measuring pair-wise cross-correlation functions for the angular displacement curves of the leg (hip, knee and ankle) and arm (shoulder, elbow and wrist) joints of both the right and left side. Both the arms and legs were found to follow a similar pattern of intralimb coordination, although the leg joints were more tightly coupled than the arm joints, particularly the proximal with the middle joint. In support of earlier findings, differences in the development of the right and left side were identified. In addition, gender differences in joint coordination were found for both intralimb and interlimb coordination. This contrasts with the view that gender differences in motor development may be primarily a result of environmental influences. 相似文献
76.
The interrelationships of cerebellar and cerebral neural circuits in the eyeblink paradigm were explored with the controlled application of cortical spreading depression (CSD) and lidocaine in the New Zealand albino rabbit. The initial research focus was directed toward the involvement of the motor cortex in the conditioned eyeblink response. However, CSD timing and triangulation results indicate that other areas in the cerebral cortex, particularly the auditory cortex (acoustic conditioned stimulus), appear to be critical for the CSD effect on the eyeblink response. In summary: (1) CSD can be elicited, monitored, and timed and its side effects controlled in 97% of awake rabbits in the right and/or left cerebral hemisphere(s) during eyeblink conditioning. (2) The motor cortex appears to play little or no part in classical conditioning of the eyeblink in the rabbit in the delay paradigm. (3) Inactivating the auditory cortex with CSD or lidocaine temporarily impairs the conditioned response during the first 5 to 15 days of training, but has little effect past that point. 相似文献
77.
Caroline Case 《Journal of Child Psychotherapy》2013,39(3):327-343
This paper discusses the development of animation and imaginative activity in a case in which there has been previous severe deprivation. Clinical material from work with an 8-year-old boy will illustrate how omnipotent behaviour, which has the function of keeping fear and feeling from consciousness, can give way to imaginative interaction with the environment. I suggest that, when internal objects have been frozen, it may be safer for the child to see animation outside the room. This may be a necessary stage before a child can begin to play with the therapist inside the room. I am using the term 'animation' in the sense of new imaginative play that has been stimulated by an apprehension of beauty in nature. This is contrasted with driven manic defending against awareness of self and others. 相似文献
78.
Kim A. Case 《Women & Therapy》2015,38(3-4):263-278
Among White1 licensed psychologists, social workers, marriage and family therapists, and counselors, research has documented a severe lack of awareness of unconscious stereotyping, systemic racism, white privilege, and white racial identity. This article introduces a privilege awareness pedagogical model as a framework for White students in clinical training programs learning about white privilege, enhancing multicultural competencies, and developing as effective allies in the therapeutic relationship, or therapeutic ally-ance. The model emphasizes intersectional privilege studies to address white privilege along with a wide variety of oppressions often neglected in the curriculum, involves personal reflection on biases and assumptions to enhance multicultural competencies, and promotes student learning through social action to dismantle privilege. The pedagogical benefits of the following activities and assignments are described: 1) group analysis of therapeutic scenarios, 2) photo-voice identity assignment, 3) white privilege reflection paper, and 4) identities education project. 相似文献
79.
Andrew D. Case Ronald Byrd Eddrena Claggett Sandra DeVeaux Reno Perkins Cindy Huang Michael J. Sernyak Jeanne L. Steiner Robert Cole Donna M. LaPaglia Margaret Bailey Candace Buchanan Avon Johnson Joy S. Kaufman 《American journal of community psychology》2014,54(3-4):397-408
Historically, consumers of mental health services have not been given meaningful roles in research and change efforts related to the services they use. This is quickly changing as scholars and a growing number of funding bodies now call for greater consumer involvement in mental health services research and improvement. Amidst these calls, community‐based participatory research (CBPR) has emerged as an approach which holds unique promise for capitalizing on consumer involvement in mental health services research and change. Yet, there have been few discussions of the value added by this approach above and beyond that of traditional means of inquiry and enhancement in adult mental health services. The purpose of this paper is to add to this discussion an understanding of potential multilevel and multifaceted benefits associated with consumer‐involved CBPR. This is accomplished through presenting the first‐person accounts of four stakeholder groups who were part of a consumer‐involved CBPR project purposed to improve the services of a local community mental health center. We present these accounts with the hope that by illustrating the unique outcomes associated with CBPR, there will be invigorated interest in CBPR as a vehicle for consumer involvement in adult mental health services research and enhancement. 相似文献
80.
Throughout history, people have observed aerial events that appeared extraordinary and anomalous. In earlier eras, these were often interpreted through a lens that invoked special classes of divine beings, such as angels (who, compared with gods, are regarded as more likely to interact with humans). Today, in our ostensibly secular scientific age, there is a tendency to assume such observers were mistaken, and that with the benefit of modern knowledge, these events can be “debunked” and attributed to conventional naturalistic explanations. However, recent years have seen a burgeoning interest and even concern over the issue of unidentified aerial phenomena. Through the lens of our “space age,” these are sometimes interpreted using notions such as extraterrestrial agents. Ultimately though, this article suggests that both categories of explanation, from angels to aliens, may be the perennial human quest to render comprehensible, through the prism of prevailing beliefs and traditions, an ongoing encounter with celestial phenomena that remain genuinely unknown but deeply significant. 相似文献