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141.
Dr. Kathryn Kelley Carol T. Miller Donn Byrne Paul A. Bell 《Motivation and emotion》1983,7(2):191-202
The hypothesis that either an angry emotional state or the expression of aggressive behavior facilitates sexual arousal has been the subject of considerable speculation but relatively little research. In a series of studies, Barclay found that anger increased sexual arousal as measured by the amount of sexual imagery produced in response to TAT-like stimuli that depicted males and females in dominant and submissive roles. In the present research, a series of experiments was conducted to determine whether such facilitation can be generalized beyond the specific procedures used by Barclay. Subjects (151 males and 136 females) in three experiments were angered by being negatively evaluated by a confederate identified as a fellow subject. Some subjects were subsequently given an opportunity to aggress; additionally, some subjects were exposed to male- and female-dominant pictorial stimuli. Results indicated that neither anger instigation nor the opportunity to engage in aggressive acts influenced self-reported sexual arousal. There was consistent evidence, however, that portrayals of dominance influenced perceptions of the stimulus person's sexuality. Though anger and aggression do not seem to facilitate sexual arousal, dominance cues (which can be confounded with anger manipulation) clearly elicit perceptions of sexuality. 相似文献
142.
TGF-β1 in Aplysia: Role in Long-Term Changes in the Excitability of Sensory Neurons and Distribution of TβR-II-Like Immunoreactivity 下载免费PDF全文
Jeannie Chin Annie Angers Leonard J. Cleary Arnold Eskin John H. Byrne 《Learning & memory (Cold Spring Harbor, N.Y.)》1999,6(3):317-330
Exogenous recombinant human transforming growth factor β-1 (TGF-β1) induced long-term facilitation of Aplysia sensory-motor synapses. In addition, 5-HT-induced facilitation was blocked by application of a soluble fragment of the extracellular portion of the TGF-β1 type II receptor (TβR-II), which presumably acted by scavenging an endogenous TGF-β1-like molecule. Because TβR-II is essential for transmembrane signaling by TGF-β, we sought to determine whether Aplysia tissues contained TβR-II and specifically, whether neurons expressed the receptor. Western blot analysis of Aplysia tissue extracts demonstrated the presence of a TβR-II-immunoreactive protein in several tissue types. The expression and distribution of TβR-II-immunoreactive proteins in the central nervous system was examined by immunohistochemistry to elucidate sites that may be responsive to TGF-β1 and thus may play a role in synaptic plasticity. Sensory neurons in the ventral–caudal cluster of the pleural ganglion were immunoreactive for TβR-II, as well as many neurons in the pedal, abdominal, buccal, and cerebral ganglia. Sensory neurons cultured in isolation and cocultured sensory and motor neurons were also immunoreactive. TGF-β1 affected the biophysical properties of cultured sensory neurons, inducing an increase of excitability that persisted for at least 48 hr. Furthermore, exposure to TGF-β1 resulted in a reduction in the firing threshold of sensory neurons. These results provide further support for the hypothesis that TGF-β1 plays a role in long-term synaptic plasticity in Aplysia. 相似文献
143.
Richard W. Byrne 《Animal cognition》1999,2(2):63-72
A theory of imitation is proposed, string parsing, which separates the copying of behavioural organization by observation from an understanding of the cause of its effectiveness. In string parsing, recurring patterns in the visible stream of behaviour are detected
and used to build a statistical sketch of the underlying hierarchical structure. This statistical sketch may in turn aid the
subsequent comprehension of cause and effect. Three cases of social learning of relatively complex skills are examined, as
potential cases of imitation by string parsing. Understanding the basic requirements for successful string parsing helps to
resolve the conflict between mainly negative reports of imitation in experiments and more positive evidence from natural conditions.
Since string parsing does not depend on comprehension of the intentions of other agents or the everyday physics of objects,
separate tests of these abilities are needed even in animals shown to learn by imitation.
Received: 11 January 1999 / Accepted after revision: 8 March 1999 相似文献
144.
Donn Byrne A. R. Allgeier Linda Winslow James Buckman 《Journal of applied social psychology》1975,5(1):1-15
A theoretical analysis of observations of natural and man-made disasters, festive social events, and task-oriented crash programs led to a three-factor hypothesis of attraction facilitation. It was proposed that interpersonal attraction toward strangers is facilitated when there is emotional arousal, sharing, and out-of-role behavior. In a laboratory investigation (N= 120), postexperimental attraction toward a dissimilar stranger increased when all three factors were present but not when only two of the three factors were present (p < .01). Consistent with the reinforcement-affect model of attraction, increased attraction toward the stranger in the three-factor conditions was paralleled by more positive feelings about the experiment in the three-factor than in the two-factor conditions. Knowledge of the variables underlying facilitation effects could be utilized on a societal basis to create attraction-enhancing occurrences. 相似文献
145.
D G Byrne 《Perceptual and motor skills》1975,41(3):907-910
It has been suggested that under normal conditions, there is no relationship between decision and movement time components of response latency. However, for normal Ss, induced elevation of decision time produces conpensatory reductions in movement time. Psychomotor retardation, commonly observed in depressive patients, shows in the main, elevations for decision time. Such patients should also produce compensatory reductions in movement time. This was found not to be so. While 15 controls exhibited no relationship between decision and movement times, 30 depressive Ss exhibited a positive one. The result was discussed in terms of a post hoc postulate of motivational deficit among depressive patients. 相似文献
146.
In a study of sexism and language 112 persons at a shopping mall were asked to read a paragraph about an achieving woman who was either given the title Miss, Mrs., or Ms., or not given a title. Persons receiving the paragraph with the Ms. title rated the woman as less honest. No effect of the title variation was obtained on a number of other rating dimensions. The results were interpreted as reflecting public acceptance of the use of the Ms. title. 相似文献
147.
Predictors of Young Adolescents’ Math Grades and Course Enrollment Intentions: Gender Similarities and Differences 总被引:1,自引:0,他引:1
Gail Crombie Nancy Sinclair Naida Silverthorn Barbara M. Byrne David L. DuBois Anne Trinneer 《Sex roles》2005,52(5-6):351-367
Gender differences and similarities in the relations of key constructs in Eccles and colleagues (Wigfield & Eccles, 2000) model of achievement were examined as predictors of math grades and enrollment intentions for Grade 9 boys (n = 263) and girls (n = 277). A number of gender similarities were found, particularly in the prediction of math grades. There were, however, two gender-specific paths: for girls, a direct path from competence beliefs to enrollment intentions, and for boys, a direct path from prior math grades to enrollment intentions. In addition, for boys, the path from utility value to enrollment intentions was stronger than it was for girls. These differential predictive patterns were found even though girls and boys reported similar levels of math utility and girls had lower math competence beliefs. For girls, competence beliefs were a significant predictor of both intentions and current math grades, which indicates the central role of competence beliefs. 相似文献
148.
Over the past decade, many findings in cognitive neuroscience have resulted in the view that selective attention, working memory and cognitive control involve competition between widely distributed representations. This competition is biased by top-down projections (notably from prefrontal cortex), which can selectively enhance some representations over others. This view has now been implemented in several connectionist models. In this review, we emphasize the relevance of these models to understanding consciousness. Interestingly, the models we review have striking similarities to others directly aimed at implementing 'global workspace theory'. All of these models embody a fundamental principle that has been used in many connectionist models over the past twenty years: global constraint satisfaction. 相似文献
149.
Foraging behaviour in domestic pigs (Sus scrofa): remembering and prioritizing food sites of different value 总被引:1,自引:1,他引:0
This experiment investigated whether domestic pigs can remember the locations of food sites of different relative value, and how a restricted retrieval choice affects their foraging behaviour. Nine juvenile female pigs were trained to relocate two food sites out of a possible eight in a spatial memory task. The two baited sites contained different amounts of food and an obstacle was added to the smaller amount to increase handling time. On each trial, a pig searched for the two baited sites (search visit). Once it had found and eaten the bait, it returned for a second (relocation) visit, in which the two same sites were baited. Baited sites were changed between trials. All subjects learnt the task. When allowed to retrieve both baits, the subjects showed no preference for retrieving a particular one first (experiment 1). When they were allowed to retrieve only one bait, a significant overall preference for retrieving the larger amount emerged across subjects (experiment 2). To test whether this preference reflected an avoidance of the obstacle with the smaller bait, 15 choice-restricted control trials were conducted. In control trials obstacles were present with both baits. Pigs continued to retrieve the larger bait, indicating they had discriminated between the two food sites on the basis of quantity or profitability and adjusted their behaviour accordingly when the relocation choice was restricted. This suggests for the first time that domestic pigs have the ability to discriminate between food sites of different relative value and to remember their respective locations. 相似文献
150.