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961.
962.
Stephen M. Reder 《Behavior research methods》1973,5(2):218-228
This paper presents a research methodology for the study of human attentional and perceptual processes by means of on-line monitoring of eye-position signals. The first part of the presentation considers techniques by which commercially available apparatus may be interfaced to a minicomputer for purposes of monitoring eye-position signals during psychological experiments. Hardware and software techniques related to automating the calibration, recording, and analysis of eye-position data are discussed. The second part of the paper discusses a more advanced research methodology, one in which visual stimuli are contingent upon momentary eye-position signals. The methodology is appropriate to a variety of studies in which eye movements are considered to be part of an attentional control system. Several experimental applications are described. The implementation of eye-position-stimulus contingencies on a small computer poses additional technical problems, several of which are discussed. 相似文献
963.
A computer simulation model was fitted to human laboratory data for the Missionaries and Cannibals task to explain (1) the effects upon problem performance of giving a hint, and (2) the effects of solving the problem a second time after one successful solution had been achieved. Most of the variance in the relative frequencies of different moves can be explained by positing that the effect of the hint, or of previous experience in solving the problem, is to cause subjects to switch more promptly from a strategy of balancing the numbers of missionaries and cannibals on both sides of the river, to a means-ends strategy. 相似文献
964.
965.
A common assumption in special education is that temporal limits for a task should be expanded so that ample time is provided for completing the work. This study describes the opposite strategy of restricting temporal limits to augment academic performance. Three educable retarded children received token reinforcement contingent on the number of correct math problems answered during daily sessions. A reversal design was used to assess the effects of an abrupt reduction in time limits (20-5-20 min) and a graduated sequence of reductions (20-15-10-5-20 min). The graduated sequence resulted in rate increases of correct responding ranging from 125% to 266% and these gains endured when temporal limits were again expanded. In contrast, the abrupt shift produced interfering emotional behaviors and rate decreases in academic performance of 25% to 80%. The findings indicate that systematically restricting temporal limits for an academic task can further enhance the performance of slow learners already maintained by a token system. 相似文献
966.
Stephen L. Bloom 《Studia Logica》1976,35(3):249-255
An abstract logic A, C consists of a finitary algebraA and a closure systemC onA. C induces two other closure systems onA, C
P andC
I, by projective and inductive generation respectively. The various relations amongC, C
P andC
I are determined. The special case thatC is the standard equational closure system on monadic terms is studied in detail. The behavior of Boolean logics with respect to projective and inductive generation is determined.Allatum est die 17 Junii 1975 相似文献
967.
The purpose of this investigation was to submit the claim of sex-related bias in clinical judgment to more thorough empirical testing than had been the case in previous research. Patient sex and stereotypic sex-role were factorially varied in a clinical protocol that was sent with related materials to 640 sex-stratified, randomly selected Members and Fellows of APA Division 29 (Psychotherapy). Approximately 30% (N=182) of those contacted returned usable data, including information about their own sex-role traditionalism and evaluation of the hypothetical patients' psychological well-being. Results confirmed the effectiveness of the stereotypic sex-role manipulation. However, no consistent effects were found for any of the four variables of interest considered in isolation or in combination, thereby refuting allegations of covert sex-related discrimination perpetrated under the aegis of psychological appraisal. Favorableness of clinical impressions was not mediated by therapists' self-reported attitudes toward the patients. The study's generally unexpected outcome was tentatively attributed to enhanced professional sensitization to the sociocultural barriers to full psychological functioning in women.This report is based on a master's thesis written by the first author under the sponsorship of the second and submitted in partial fulfillment of the requirements for the MA degree at Vanderbilt University, 1974. The research was supported in part by the Vanderbilt University Research Council. The contributions of Stephen Amira and Joseph M. Schwartz are gratefully acknowledged. 相似文献
968.
969.
The questions posed in this paper concern the relationship between the counsellors' claim to be professional and the acceptance of this claim - and its implications - by the courts who act within the terms of existing legal codes. In addition, the paper seeks to clarify the importance of legal recognition in the process of professional legitimation, and examines the position of counsellors in educational institutions (especially secondary schools) in terms of their current legal status and their acceptance as professional counsellors. 相似文献
970.
Kosslyn SM 《Memory & cognition》1976,4(3):291-297
This paper provides support for the notion that images, once formed, are a distinct form of internal representation, processed differently than other forms of internal representation. In two experiments, subjects decided as quickly as possible whether or not named animals had given properties. When imagery was not used, people verified properties more quickly in accordance with how strongly associated the property was with the animal in question. When images of the whole animal were consulted, in contrast, subjects were faster in accordance with increasing size of the property, and not with increasing association strength. However, if subjects imaged only the local region where a property ought to be found, and did not consult an image of the whole animal, the size of a property no longer influenced verification time. These results and their implications for the debate over imagery vs. propositional representation were discussed. 相似文献