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Operant conditioning techniques were applied to the verbal behavior of three speech deficient children. Subjects A and B having no intelligible speech and Subject C having very little. Using candy and a puppet with a 13-yr-old boy (A), it was possible to condition vocalization rate. Using social reinforcement with a 6-yr-old boy (B), it was possible to extinguish animal-like sounds, to condition vocalization rate, and to shape a small vocabulary of syllables, but not to gain discriminative control over word emission. Using varied reinforcers, e.g., candy, praise, repetitions other own responses, and hand clapping with a 13-yr-old girl (C), it was possible to condition rate of verbalization, to establish appropriate mimicking, and to establish naming of five pictures. The results were consistent with the findings of Salzinger et al. (1965) and with those of Kerr et al. (1965). 相似文献
303.
We investigated the effects of contingent reinforcement (Intervention 1) and contingent reinforcement with modeling (Intervention 2) on speaker and listener behaviors in 5 people with severe dementia. Intervention 1 generally increased listener behavior; there was no clear effect on tacting, but echoic behavior increased in the one case investigated. Given the weak baseline repertoires of these clients and the paucity of other effective interventions, even the small increases in verbal behaviors found here are important. Further gains may be achieved, for example, if reinforcement opportunity per trial type were to be increased from one to several per day or if participants were trained to echo the listener stimulus in mand compliance tasks. 相似文献
304.
In four experiments, we examined the degree to which imaging written words as spoken by a familiar talker differs from direct perception (hearing words spoken by that talker) and reading words (without imagery) on implicit and explicit tests. Subjects first performed a surface encoding task on spoken, imagined as spoken, or visually presented words, and then were given either an implicit test (perceptual identification or stem completion) or an explicit test (recognition or cued recall) involving auditorily presented words. Auditory presentation at study produced larger priming effects than did imaging or reading. Imaging and reading yielded priming effects of similar magnitude, whereas imaging produced lower performance than reading on the explicit test of cued recall. Voice changes between study and test weakened priming on the implicit tests, but did not affect performance on the explicit tests. Imagined voice changes affected priming only in the implicit task of stem completion. These findings show that the sensitivity of a memory test to perceptual information, either directly perceived or imagined, is an important dimension for dissociating incidental (implicit) and intentional (explicit) retrieval processes. 相似文献
305.
Henry J. Whitfield 《Counselling psychology quarterly》2006,19(2):205-217
Teasdale, Segal and Williams (2003) present the combination of mindfulness and cognitive-behavioural therapy as “one of the most exciting and potentially productive avenues for future exploration.” (p. 160). In the same paper they also recommend moving beyond the current general-purpose, non-case-specific applications of mindfulness (p. 157). By integrating mindfulness interventions more closely with cognitive behavioural theories, clinicians should be in a better position to administer tailor-made mindfulness-based interventions in response to specific case formulations. This paper examines important similarities and differences between mindfulness and Rational-Emotive Behaviour Therapy (REBT), in view of integrating the two practices closely within a one-on-one counselling environment. The latter half of the paper then presents recommendations of how such integration might be achieved in practice. This is illustrated with examples of three new interventions that combine mindfulness with three specific types of cognitive dysfunction as per REBT. 相似文献
306.
Taking a memory test not only assesses what one knows, but also enhances later retention, a phenomenon known as the testing effect. We studied this effect with educationally relevant materials and investigated whether testing facilitates learning only because tests offer an opportunity to restudy material. In two experiments, students studied prose passages and took one or three immediate free-recall tests, without feedback, or restudied the material the same number of times as the students who received tests. Students then took a final retention test 5 min, 2 days, or 1 week later. When the final test was given after 5 min, repeated studying improved recall relative to repeated testing. However, on the delayed tests, prior testing produced substantially greater retention than studying, even though repeated studying increased students' confidence in their ability to remember the material. Testing is a powerful means of improving learning, not just assessing it. 相似文献
307.
Although 50 years of research demonstrate that friendly intergroup contact reduces intergroup prejudice, the findings are based solely on self-reported, explicit prejudice. In two parallel experiments examining intergroup contact and prejudice-between Whites and Blacks in the United States (Experiment 1) and between Christians and Muslims in Lebanon (Experiment 2)-we examined whether intergroup status differences moderate contact effects on implicit prejudice, as well as explicit prejudice. Both experiments replicated the standard effect of contact on explicit prejudice. They also demonstrated that intergroup contact reduces implicit prejudice among low-status groups. In Experiment 1, the implicit prejudice of Blacks toward Whites (but not Whites toward Blacks) was reduced as a function of friendly contact. In Experiment 2, the implicit prejudice of Muslims toward Christians (but not Christians toward Muslims) was reduced as a function of friendly contact. 相似文献
308.
Henry SG 《Theoretical medicine and bioethics》2006,27(3):187-213
The evidence-based medicine movement advocates basing all medical decisions on certain types of quantitative research data and has stimulated protracted controversy and debate since its inception. Evidence-based medicine presupposes an inaccurate and deficient view of medical knowledge. Michael Polanyi’s theory of tacit knowledge both explains this deficiency and suggests remedies for it. Polanyi shows how all explicit human knowledge depends on a wealth of tacit knowledge which accrues from experience and is essential for problem solving. Edmund Pellegrino’s classic treatment of clinical judgment is examined, and a Polanyian critique of this position demonstrates that tacit knowledge is necessary for understanding how clinical judgment and medical decisions involve persons. An adequate medical epistemology requires much more qualitative research relevant to the clinical encounter and medical decision making than is currently being done. This research is necessary for preventing an uncritical application of evidence-based medicine by health care managers that erodes good clinical practice. Polanyi’s epistemology shows the need for this work and provides the structural core for building an adequate and robust medical epistemology that moves beyond evidence-based medicine.An erratum to this article can be found at 相似文献
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