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911.
It is proposed that some distance cues are learned when a perceptual parameter that varies with observation distance is regularly associated with objects whose distances are perceived because another distance cue operates. If that is the way distance cues can come into existence, it may be possible to identify a parameter that varies with distance but is not a known distance cue and to show that it functions as one. The slope of regard with which an object on the ground is viewed is such a potential distance cue. Its angle varies approximately with the reciprocal of distance. An experiment was done that showed that this slope angle functions as a distance cue. Subjects who looked through a device that altered slope angles gave estimates of the dimensions of an object on the ground. Perceived sizes, which vary inversely with distance, were found to be altered in accordance with the altered slope angle. 相似文献
912.
By delivering the vertical synch pulse to the maskable interrupt, it is possible to supply the Apple with a functional on-board 60-Hz clock that operates virtually independently of the CPU. This modification makes it easier to program more complex experiments involving independent control over stimulus exposure duration and the timing of response latency. 相似文献
913.
914.
This paper describes an all-purpose experimental system, “APES,” for use in a microprocessor-controlled behavioral pharmacology laboratory. APES is an assembly language program that can run on any of the DEC PDP-11 family processors under an RT-11 single-job operating system. Its main purpose is the real-time control of psychological experimentation. The capabilities of the system are: (1) system generation of all operant or Pavlovian conditioning paradigms, (2) collection and storage of both behavioral and physiological data in a machine-readable format for later statistical analysis, and (3) operation that can be accomplished by individuals who have no computer programming experience. 相似文献
915.
Robert C Reardon Roy O Bonnell Michael R Huddleston 《Journal of Vocational Behavior》1982,20(1):22-30
This study compared student satisfaction ratings for CHOICES, an interactive computer-based career guidance program, and the Self-Directed Search,a pencil-and-paper career planning guide. During the first testing session, subjects (N = 75) completed a biographical data sheet and were alternately assigned to either the CHOICES or the SDS treatment. Later, each subject completed the other treatment and two research instruments designed to assess their reactions to both treatments. Results indicated a user preference for CHOICES over the SDS, although both programs received positive ratings. The findings were discussed in terms of user reactions to career guidance programs and the selection of the most cost-effective treatment. 相似文献
916.
917.
918.
Early sexual explorations of children that are of a traumatic nature are often labeled by the child as bad or wrong and subsequently repressed. The guilt that results from the labeling may be intensified at a later date by some other similar incident, and at this time the person may make a binding commitment or promise to God to serve Him in some dutiful way. If, at a later date, these plans to serve God cannot be realized, depression, phobias, or conversion symptomatology may occur, which we have referred to as the Missionary Syndrome.Ray O. Sexton, M.D., is a psychiatrist in private practice in Memphis, TennesseeWith Dr. Sexton, he maintains a private practice in Memphis, Tennessee. 相似文献
919.
Stereovision is a complex process because perceived depth intervals depend not only on retinal disparity, but also on cues for distance. Because disparity decreases in proportion to the square of the object distance, a compensation process called constancy of stereoscopic depth makes the necessary correction in the perception of depth by taking object distance into account. This compensation process was altered by adaptation. Subjects were exposed to artificial conditions where disparity decreased in proportion to distance instead of distance squared. Alterations in depth perception amounting to 20% were obtained. 相似文献
920.
William P. O’hara 《Attention, perception & psychophysics》1980,27(5):390-402
In each of five experiments, the subjects viewed tachistoscopically presented pairs of letters and made speeded comparison judgments on the basis of name identity. On most trials, a noise letter string (word or anagram) was placed directly between the target letters. The results indicated that correct “same” RTs were a function of noise item type and its relation to target letters. Anagrams increased RTs more than their counterpart words, except when the noise word was either unmeaningflul or response incompatible with respect to the target letters (e.g., B Tea b). The interference effects were also found to be independent of sequence length. It was posited that the subjects were unable to completely ignore the irrelevant attributes of the displays and that under certain conditions, the subjects were able to identify the noise items in a holistic fashion. The data were interpreted in terms of a unitization hypothesis of word recognition, response competition, and a continuous-flow conception of information processing. 相似文献