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The role of vagino-cervical stimulation in the control of feminine copulatory behavior in the behaviorally estrous rat was examined in a complex environment that allowed the test female to pace her contacts with sexually active males, sexually passive males and ovariectomized females. Manipulations of vagino-cervical stimulation by administration of a topical anesthetic or by probing with a glass rod, immediately before testing in the complex environment, did not significantly alter any aspect of behavior in behaviorally estrous females. Transection of the pelvic nerve increased the number of intromissions and ejaculations that the females received and increased the amount of time that the females spent with the sexually active males. The present results implicate the pelvic nerve in the modulation of motivation for coital contacts in the female rat. 相似文献
23.
Helme AE Call J Clayton NS Emery NJ 《Journal of comparative psychology (Washington, D.C. : 1983)》2006,120(3):294-302
The present study aimed to test what bonobos (Pan paniscus) understand about contact. The task consisted of a clear horizontal tube containing a piece of food and a stick with a disk attached. The bonobos chose which side to push or pull the stick for the disk to contact the food and make it accessible. There were 9 variations in tube design, which differed in the positions of the stick, disk, and food. All 5 bonobos passed at least 1 configuration. A recent study (A. E. Helme, N. S. Clayton, & N. J. Emery, 2006) found that rooks could learn only tube configurations that provided an asymmetrical stick cue, whereas bonobos did not demonstrate an understanding of contact but showed more individual variation, attending to the positions of the food, disk, and stick. 相似文献
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Recruiting adolescents into smoking cessation studies is challenging, particularly given institutional review board (IRB) requirements for research conducted with adolescents. This article provides a brief review of the federal regulations that apply to research conducted with adolescents, and describes researchers' experiences of seeking IRB approval for youth cessation research. Twenty-one researchers provided information. The most frequently reported difficulty involved obtaining parental consent. Solutions to commonly reported problems with obtaining IRB approval are also identified. Waivers of parental consent can facilitate recruitment of youths into studies; however, researchers must ensure that their protocols comply with federal regulations when requesting a waiver. 相似文献
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Three experiments were conducted to examine the effects of extraneous speech warnings (i.e., low-priority warnings initiated during high-priority tasks) on cognitive performance and whether organizing the auditory warnings into streams can attenuate any disruption. Experiment 1 demonstrated that a variety of speech warnings can be separated into perceptually distinct streams by allocating them to discrete spatial locations. Experiment 2 showed that increasing the rate of presentation of the warnings to promote streaming decreased clarity ratings but increased perceived urgency ratings. Experiment 3 demonstrated that the disruption to serial memory for navigational information by extraneous speech warnings could be attenuated by streaming. Results are interpreted in light of previous research, and practical implications for auditory warning design are discussed. 相似文献
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Philip J. Benson Joanne L. Emery Martin J. Tovée Esther M. Cohen-tovée 《Behavior research methods》1999,31(3):446-454
We present a novel approach for measuring body size estimation in normal and eating-disordered women and men. Clinical categories of body types were used as prototypes. By comparing the subjective appearance of a person’s body with prototypes, we can understand how different attributes of his or her body shape contribute to perception of body size. After lifelike random distortions have been applied to parts of their body image, individuals adjust their body shapes until they converge on their perceived veridical appearance. Exaggeration and minimization of particular body areas measured with respect to their true shape and with different prototypes can be expressed as numerical deviations. In this way, perceived body size and body attractiveness can be appraised during the course of diagnosis and treatment of eating disorders. 相似文献
27.
D E Emery K Larsson 《Journal of comparative psychology (Washington, D.C. : 1983)》1979,93(6):1067-1084
The potentiation of masculine copulatory behavior in castrated male rats following systemic para-chlorophenylalanine (PCPA) treatment was found to be dependent upon the strain of rat and the recency of castration. Wistar (W) and Sprague-Dawley (SD) males displayed a decline in behavioral responsiveness to PCPA treatment following castration, the W males retaining their behavioral responsiveness longer than SD males. Castrated W males were also behaviorally more responsive to androgen replacement than were SD males. Ovariectomized W and SD females receiving estrogen replacement displayed a strain difference in hormonal sensitivity. In tests for feminine copulatory behavior, ovariectomized W females were behaviorally more sensitive to estrogen treatment than SD females. Ovariectomized and estrogen-primed females of both strains displayed potentiated lordotic behavior following chronic PCPA treatment. Concomitant treatment with dexamethasone to reduce adrenal steroid output abolished the potentiation of lordotic behavior found with PCPA treatment. 相似文献
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The authors report 2 experiments in which they examined age differences in working memory tasks involving complex item manipulation (i.e., letter-number sequencing). In Experiment 1, age differences on tasks involving item manipulation were not greater than age differences on tasks requiring recall of items in the order in which they appeared, suggesting that older adults do not have difficulty with item manipulation per se. In Experiment 2, slower presentation rates increased age differences in item manipulation spans, although age differences at the fastest rate may be attributed to differences in strategy use. In both experiments, age differences were largest when participants were most likely to be remembering familiar sequences, suggesting that older adults may have difficulties dampening the representations of such sequences once they are activated. 相似文献
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Journal of Happiness Studies - Subjective well-being research increasingly uses web surveys to understand how subjective well-being indicators are related to other concepts of interest. Although we... 相似文献