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251.
252.
L D Zimba R Blake 《Journal of experimental psychology. Human perception and performance》1983,9(5):807-815
Previous studies of binocular rivalry have shown that some aspects of a phenomenally suppressed stimulus remain available for visual analysis. The question remains, however, whether this analysis extends to the case of semantic information. This experiment examines that question using a semantic-priming paradigm in which prime words were briefly flashed to an eye during either dominance or suppression phases of binocular rivalry. Reaction times on a lexical-decision task were significantly shortened (the semantic-priming effect) only when prime words were presented to an eye during dominance; suppression acted to impair word recognition and to eliminate semantic priming. These results are inconsistent with certain cognitive models of binocular rivalry. 相似文献
253.
This paper reviews experiments that bear on the issue of binocular summation, the superiority of binocular over monocular viewing on various visual tasks covering studies published since the appearance of a previous review of this literature by Blake and Fox (1973). The experiments are grouped into three main categories—those that deal with the specificity of binocular summation (i.e., the extent to which inputs to the two eyes must coincide spatially and temporally), those that study binocular summation on suprathreshold tasks, and those that correlate binocular summation with other aspects of binocular function. The last section of the paper critically reviews several models of binocular summation. 相似文献
254.
An Institution for Change: Developing a Family Day Unit 总被引:1,自引:0,他引:1
Alan Cooklin MB ChB FRC PSYCH DPM Ann C. Miller B.A. Brenda McHugh LUD NCSD ADB 《Family process》1983,22(4):453-468
This paper describes the theory and structure of a day unit designed to intervene in the systems of families who present with severe or multiple problems to agencies attempting to help them, but who are difficult to engage in a therapeutic pact and unresponsive to attempts at outpatient therapy. An analysis of these families is offered in terms of the relations between internal and external boundaries and difficulties in making transitions in the daily contexts of life. The principles of the unit are described in terms of the creation of an artificial extended family, the intensification of sequence and patterns of interaction, and the making and traversing of boundaries. Particular attention is paid to the function of agency interventions in family patterns and to redefining the relationship between family and agencies. 相似文献
255.
The present article critically examines research on the use of antidepressants in treating agoraphobia. A number of studies have shown certain classes of antidepressant medication, namely tricyclic antidepressants and MAO inhibitors, to have beneficial effects on certain aspects of the agoraphobic syndrome. However, these studies must be interpreted with caution in light of two major methodological shortcomings, i.e. sole reliance on paper and pencil outcome indices and the confounding of the pharmacological effects of the drug with exposure to feared situations. Recent research, aimed at correcting for these methodological problems, seriously question the efficacy of antidepressant pharmacotherapy by itself as a treatment for agoraphobia. Moreover, it is argued that the disadvantages of drug treatments namely agoraphobics' reluctance to take medication, physical side effects and relapse upon withdrawal of the medication, caution against their routine use in clinical practice. 相似文献
256.
Observers viewed animation sequences consisting of random dots, some of which moved coherently in a given direction (signal dots) and the rest of which moved randomly (noise dots). Using forced-choice procedures, detectability of weak signals within noise was measured for translation, rotation, and expansion/contraction. Sensitivity to all motion types was approximately equal, with practiced observers reliably detecting coherent motion at signal levels as low as 4%. Observers were able to identify the motion structure presented on a given trial at signal levels corresponding to the detection threshold, implying that the neural signals supporting detection are labeled for motion type. Results are discussed in the context of hierarchical analysis of optic flow in which all motion types are registered as patterns of activity among neurons comprising a single mechanism. 相似文献
257.
WINDSORT: A fully automated technique for collecting sort data for multidimensional scaling analysis
WINDSORT is a microcomputer program that uses an automated sorting procedure to collect the preprocess proximity data commonly analyzed using multidimensional scaling. The traditional manual sorting task is less tedious, more enjoyable, and far easier for subjects to perform than the tasks that are used in alternative data-collection techniques. However, complete automation of the sorting task has not previously been fully successful WINDSORT uses a form of the hierarchical sorting technique which is reputed to yield richer data than single-sort techniques A maximum of 45 stimuli can be scaled using WINDSORT. Resulting output includes dissimilarity matrices which are ready to analyze using MDS. 相似文献
258.
259.
Research on organizational socialization has usually focused on what organizations do to socialize newcomers or on what newcomers do to socialize themselves. The purpose of this study was to integrate these two perspectives of socialization by investigating the relationships between socialization tactics, newcomers' information acquisition (i.e. feedback and observation) and socialization outcomes. Consistent with previous research, socialization tactics and information acquisition were related to socialization outcomes. Furthermore, institutionalized socialization was positively related to the frequency of newcomers' feedback and observation and the frequency of newcomers' feedback and observation was found to mediate several of the relationships between socialization tactics and outcomes. These results suggest that what newcomers can do to socialize themselves (e.g. acquire information through feedback and observation) is partly a function of what organizations do to socialize newcomers (e.g. the use of specific socialization tactics). The implications of these findings are discussed for the development of a more complete and integrated theory of organizational socialization. 相似文献
260.
Blake E. Ashforth Alan M. Saks Raymond T. Lee 《International Journal of Selection & Assessment》1997,5(4):200-214
One of the most theoretically developed models of organizational socialization is Van Maanen and Schein's (1979) typology of six tactics. Jones' (1986) operationalization of these tactics has been used in most survey studies of the Van Maanen and Schein model. However, questions remain concerning the dimensionality of the operationalization. Self-report data from business school graduates after 4 months (n = 295) and 10 months (n = 222) on the job indicate that: (1) a 6-factor model better approximates the covariance matrix of the socialization items than do competing 1- and 3-factor models, (2) the 6-factor model better predicts certain work adjustment variables than the 3-factor model, and the 3-factor model better predicts certain variables than the 1-factor model, and (3) the collective, formal, sequential, fixed, serial, and investiture tactics are positively interrelated, suggesting a structured program of early work experience. 相似文献