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71.
Psychologists' perceptions of their duty to protect uninformed sex partners of HIV-positive clients.
The purpose of the present study was to determine whether mental health professionals would breach the confidentiality of HIV-infected patients with uninformed sex partners, and how any such disclosure would occur. Subjects read one of eight vignettes that depicted a patient who refused to disclose his viral status. Results revealed a split of opinion about breaching confidentiality and about the preferred mode for doing so. Neither diagnosis nor mode of viral transmission significantly influenced breaching decisions. Subjects demonstrated a high level of AIDS risk knowledge but only a moderate level of legal/ethical knowledge. Implications of these findings are discussed. 相似文献
72.
Gert Ten Hoopen Gerard Van Meurs Simone Akerboom 《Attention, perception & psychophysics》1982,31(3):256-260
Previous research has demonstrated that a sequence of tones that is alternated between ears is stretched out in echoic memory, as compared with monaural sequences. Although the stimulus onset asynchronies (SOAs) were the same in the interaural and monaural conditions, the perceptual onset asynchronies (POAs) differed by 24 msec. The present study investigated whether an analogous perceptual phenomenon exists for frequency-alternating tone sequences. It turned out that the POAs of coherent and even of streaming tone sequences were precisely the same as with nonalternating tone sequences. 相似文献
73.
Previous research demonstrated, by means of a reaction time technique, that there is no difference between the perceptual onset asynchronies (POAs) of nonalternating tone sequences and of frequency-alternating tone sequences, even if the latter are streaming. This finding implies that listeners are capable of extracting the tempo of the total alternating sequence, even though successive tones belong to different streams. The present study investigated whether subjects are also capable of establishing the tempo of one stream. To this end, listeners were required to match the rate of one stream by adjusting the rate of a nonalternating comparison stream (a pulse sequence). In addition, they were required to match the total rate of the streaming sequence. It turned out that the total tempo could be matched precisely and that the tempo of one stream could be approximated very closely. 相似文献
74.
In most of the literature on human performance the results of an experiment by Leonard (1959) are quoted as the most outstanding example of perfect S-R-compatibility. In that experiment the fingertips were stimulated by a 50 Hz vibration; the vibrating armature had to be depressed and the reaction times of the right index finger were recorded. The reaction time was found not to increase with an increasing number of tactual choices. In experiment 1 of the present study, also applying 50 Hz vibrations, the reaction times of other fingers were also reported. In addition the response stimulus interval (RSI) was varied. Leonard's results were not replicated: reaction time increased with the number of tactual choices at all levels of RSI. In experiment 2 the frequency and amplitude of vibration were systematically varied and it turned out that these variables could account for the differences between the results found. An increase in reaction time with the number of tactual choices was found with weak vibrations, but not with strong vibrations. The differences in reaction time patterns appeared to be caused by differences in tactile receptor systems (i.e. the non-Pacini versus the Pacinian system). It was concluded that the concept of S-R-compatibility did not cover the pattern of results but that the concept of ideomotor compatibility did. 相似文献
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77.
MEDIATING ROLE OF MATERNAL SENSITIVITY: ENHANCING LANGUAGE DEVELOPMENT IN AT‐RISK FAMILIES
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Alex Neuhauser Erich Ramseier Simone Schaub Susan C.A. Burkhardt Andrea Lanfranchi 《Infant mental health journal》2018,39(5):522-536
Home‐visiting programs have gained increasing importance in family‐centered prevention and intervention. However, few studies have examined the mechanisms underlying early intervention treatment effects. The goal of this study is to analyze the mediating role of maternal sensitivity in enhancing language development with the home‐visiting program Parents as Teachers (PAT). Data were collected and analyzed within the ongoing, long‐term ZEPPELIN study, a randomized controlled trial with 251 participating at‐risk families. Via longitudinal mediation analysis, we examined whether effects of the PAT on receptive and expressive language outcomes at 24 and 36 months were mediated by maternal sensitivity at 12 months. Within a moderated mediation framework, we investigated whether the level of family psychosocial stress affects this mediation. Results showed that intervention effects on language outcomes are mediated by maternal sensitivity—weakly and through specific pathways. Moderation and moderated mediation analyses indicated that effects of the PAT and also specific mediation effects increase with the level of psychosocial stress. Implications of the results for practice are discussed. 相似文献
78.
Models of the spatial–numerical association of response codes (SNARC) effect—faster responses to small numbers using left effectors, and the converse for large numbers—diverge substantially in localizing the root cause of this effect along the numbers’ processing chain. One class of models ascribes the cause of the SNARC effect to the inherently spatial nature of the semantic representation of numerical magnitude. A different class of models ascribes the effect’s cause to the processing dynamics taking place during response selection. To disentangle these opposing views, we devised a paradigm combining magnitude comparison and stimulus–response switching in order to monitor modulations of the SNARC effect while concurrently tapping both semantic and response-related processing stages. We observed that the SNARC effect varied nonlinearly as a function of both manipulated factors, a result that can hardly be reconciled with a unitary cause of the SNARC effect. 相似文献
79.
Simone Arnaldi 《Nanoethics》2018,12(3):283-300
The techno-moral scenarios (TMS) approach has been developed to explore the interplay between technology, society and morality. Focused on new and emerging sciences and technologies, techno-moral scenarios can be used to inform and enhance public deliberation on the desirability of socio-technical trajectories. The article presents an attempt to hybridise this scenario tool, complementing the focus on ethics with an explicit acknowledgement of the multiple meanings of responsibility and of the plurality of its regimes, i.e. the institutional arrangements presiding over the assumption and assignment of responsibilities. We call this integrated technique ‘rTMS’ to stress the continuity with the original technique and, at the same time, to highlight the additional element we aim to develop: responsibility. The article describes this approach and illustrates a loosely standardised procedure that can be used to organise and conduct public engagement workshops based on rTMS. 相似文献
80.
Recent evidence suggests that consciousness of encoding is not necessary for the rapid formation of new semantic associations. We investigated whether unconsciously formed associations are as semantically precise as would be expected for associations formed with consciousness of encoding during episodic memory formation. Pairs of faces and written occupations were presented subliminally for unconscious associative encoding. Five minutes later, the same faces were presented suprathreshold for the cued unconscious retrieval of face-occupation associations. Retrieval instructions required participants to classify the presented individuals according to their putative (1) regularity of income, (2) length of education, and (3) creativity value of occupational activity. The three instructions yielded more classifications consistent with a person’s occupation if the person had been subliminally presented with his written occupation versus a meaningless word (control condition). This suggests that consciousness is not necessary to encode, long-term store, and retrieve semantically precise associations between primarily unrelated items. 相似文献