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691.
Glenn S Sanders 《Journal of experimental social psychology》1978,14(4):409-416
Findings have been reported and replicated indicating group-induced caution at the racetrack and group-induced risk in blackjack gambling. The present research examined the effects of two consistent differences between the blackjack and racetrack situations: (a) the amount of money available to groups versus individuals; and (b) the number of bets made in the postbaseline session. It was found that group-induced caution can occur in the blackjack setting if groups have larger stakes than individuals, as was the case in the racetrack studies, and that this effect disappears over trials, due to group versus individual differences established in the previous blackjack studies. Since current explanations of choice shifts cannot account for the observed trial effects, it was suggested that traditional choice-dilemma material, on which these explanations are largely based, be examined for such effects. Implications of the possible outcomes of such an examination for current group polarization theory were discussed. 相似文献
692.
693.
694.
In Experiment 1 it was demonstrated that interference with a rat's retention of a target spatial cue decreases as the interval between prior conflicting cues and the target increases. Experiment 2 showed that interference can occur even when the interstimulus interval is long, if the memory of a conflicting cue is reactivated just prior to exposing an animal to the target cue. A third experiment suggested that these findings could not be easily interpreted in terms of a stimulus satiation effect. The implications of these findings for a trace decay model of short-term retention were discussed. 相似文献
695.
Seymour Fisher 《Journal of research in personality》1978,12(1):87-99
Two hypotheses were evaluated. One proposed that the more prominent a body landmark the less anxiety will be evoked by a theme linked to that landmark. The relation was determined between landmark prominence and anxiety evoked by a taped message appropriate to the landmark-linked theme. Two female samples were studied. The findings supported the hypothesis. A second hypothesis proposed that enhancing awareness of body landmarks under threat conditions is positively related to degree of masculinity and negatively related to degree of femininity. Changes in landmark awareness during appropriate taped messages were studied in two male and two female samples. Masculinity-femininity was also measured. The findings were particularly supportive of the hypothesis relating masculinity to mobilization of landmarks. 相似文献
696.
Bruno H. Repp 《Brain and language》1978,5(3):310-330
Two studies were conducted to determine the effect of variations in voice onset time (VOT) on the perception of dichotic stop-consonant-vowel syllables contrasting in the voicing feature. The dichotic stimuli were partially fused, so that only a single response was required. Variations in VOT had a systematic effect on the probability of hearing the fused stimuli as voiced or voiceless. Changing the VOT of a voiceless stimulus had a larger effect than changing the VOT of a voiced stimulus. Unless one of the competing stimuli was close to the category boundary, the perceptual integration of their VOTs seemed to be roughly additive. The relative phase of the periodic portions of the stimuli had an unexpected effect on perception that remains to be explained. A number of subjects showed very strong right-ear dominance in these tests. The range and reliability of the laterality effects obtained, as well as certain other methodological features, make the present tests promising as tools for assessing individual differences in ear dominance. 相似文献
697.
Robert J. Sternberg 《Intelligence》1978,2(2):117-128
In a recent volume (Sternberg, 1977b), I proposed a method called componential analysis that provides a means to isolate the components of intelligent performance. The method was described in detail, and then tested in a series of experiments. But an important question was left unanswered by this early work: Is componential analysis generalizable to tasks other than analogies? More recently, I have been investigating the generalization of the methodology to other tasks, and have also been engaged in extending the methodology in order to increase its flexibility of application. The present article (a) briefly summarizes the structure of a componential analysis, (b) describes the method of precuing, the method originally used for isolating the components of intelligence, and (c) describes new methods that have also been successful in isolating these components in a variety of reasoning tasks. 相似文献
698.
Comprehension of various usages of “or” was investigated in children 5–6, 7–8, and 9–10 years old, and in college students. One task used imperatives containing “or.” and investigated the set union interpretation. In a second task, one puppet asserted a statement and another puppet contradicted it: subjects were asked whether both could be right, and whether one had to be right. A third task investigated the truth conditions for disjunctions. The fourth task presented reasoning problems that tested principles of inference involving “or.” It was found that all age groups, even the youngest, could make the logical inferences involving “or.” All age groups could also perceive contradictions, but subjects were less than unanimous that one of the puppets contradicting each other had to be right. Sensible truth judgments for disjunctions began to develop around 7–8 years. Set union was elicited in only a few adults. In general, except when it indicates set union, “or” is understood substantially earlier than the current literature suggests. Logical inference is one of the first uses in which children become competent, suggesting that the basic meaning of “or” is given by inference forms for reasoning with alternatives, not by truth conditions. 相似文献
699.
Adam Drewnowski 《Journal of experimental child psychology》1981,31(1):154-168
College students and school children between the ages of 6 and 10 were asked to search four 50-word passages for instances of the target letter n. The subjects made most letter detection errors on the function words in and and, and on the suffix morpheme -ing. This “missing letter” effect showed a developmental trend, with the proportion of errors on function words and suffix morphemes increasing as a function of school grade. The data are consistent with the hypothesis that frequent linguistic entities such as word-boundary morphemes tend to be unitized in fluent reading, and that the ability to form such units is acquired gradually in the course of learning to read. 相似文献
700.
A confusion model is defined as a model that decomposes response probabilities in stimulus identification experiments into perceptual parameters and response parameters. Historically, confusion models fall into two groups. Models in Group I, which includes Townsend's (Perception and Psychophysics, 1971, 9, 40–50) overlap model, were developed on the basis of the notion that stimulus identification is mediated by a finite number of internal states. We call the general class of models that have this processing interpretation finite state confusion models. Models in Group II, which includes Luce's (R. O. Luce et al., Eds., Handbook of Mathematical Psychology (Vol. I), New York: Wiley, 1963) biased choice model, were not developed on the basis of an explicit processing interpretation. It is shown here that models in Group II are not finite state confusion models. We prove in addition that except for Falmagne's (Journal of Mathematical Psychology, 1972, 9, 206–224) simply biased model models in Group II belong to a certain class of infinite state confusion models, namely, models asserting that stimulus identification is mediated by a continuous space of vectors representing detector activation levels. 相似文献