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81.
Holloway KS Balthazart J Cornil CA 《Journal of comparative psychology (Washington, D.C. : 1983)》2005,119(1):49-57
Demonstrations of increased reproductive success due to sexual conditioning in Japanese quail (Coturnix japonica) have been reported, although the mechanisms that underlie these effects have remained elusive. One possible mechanism is conditioned rhythmic cloacal sphincter movements (RCSM). Two experiments were conducted with male quail to determine whether associations between a conditioned stimulus (CS) and a hen would result in the ability of the CS to elicit RCSM, and to explore the androgen mediation of conditioned RCSM. The results suggest that a focal CS paired with visual access to a female will elicit RCSM via a representation of the hen activated by the CS. Further, the available evidence indicates that conditioned RCSM is androgen mediated and that this learning may transfer across breeding seasons. 相似文献
82.
In this report, we have analyzed the effects of left and right STN stimulation separately on different aspects of speech. Significant differences were found between left and right stimulation. It appears that selective left-sided stimulation has a profoundly negative effect on prosody, articulation and hence intelligibility. Right-sided stimulation does not display this side-effect. There is no significant difference in speech characteristics between bilateral stimulation on and off. We suggest that a balanced tuning of bilateral basal ganglia networks is necessary for speech, and that the left circuit is probably dominant. 相似文献
83.
Jacques J. D. M. Van Lankveld Moniek M. Ter Kuile 《Personality and individual differences》1999,26(6):223
The discriminant and predictive validity of the Dutch translation of the Golombok Rust Inventory of Sexual Satisfaction (GRISS; Rust and Golombok, 1985, Rust and Golombok, 1986a, Rust and Golombok, 1986b; Ter Kuile et al., (1993); Ter Kuile et al., accepted for publication) was examined in independent samples comprising sexological (357 males and 380 females) and gynaecological outpatients (156 males and 209 females). Prediction of the presence of sexual complaints with the GRISS differed in these samples. The best performance was found in the male sexology sample in which sensitivity and specificity, as well as the predictive values both positive and negative were satisfactory. The predictive characteristics in the other three samples were found to be less satisfactory and were confounded with sample characteristics concerning the presence or absence of individual sexual problems. The availability of the other partners' GRISS scores enhanced the GRISS' predictive capacities for males and females in these samples. In 320 female and 300 male sexology patients and their partners, the convergent and divergent construct validity of the GRISS scales was investigated using other instruments measuring psychological distress, marital, sexual and general life maladjustment, personality traits of psychoticism, extraversion and neuroticism and social desirability. No correlations of the GRISS with social desirability were found. GRISS subscales were found to represent relatively independent constructs. These findings were confirmed by higher-order factor analyses of subscale scores of males and females. 相似文献
84.
Weapons of both defense and offense have grown steadily in their effectiveness—especially since the industrial revolution. The mass destruction of humanity, by parts or in whole, became reality with the advent of toxic agents founded on chemistry and biology or nuclear weapons derived from physics. The military’s new non-combat roles, combined with a quest for non-lethal weapons, may change the picture in regard to conventional defense establishments but are unlikely to deter bellicose tyrants or the new terrorists from using the unlimited potential of today’s and tomorrow’s arsenals. The author addresses the issues that are raised by this developing situation with the intent of seeking those ethics that will enable us to survive in a future and uncertain world. 相似文献
85.
Hand-movement profiles in a tactual—tactual matching task: Effects of spatial factors and laterality
Joël Fagot Agnès Lacreuse Jacques Vauclair 《Attention, perception & psychophysics》1994,56(3):347-355
We examined the effect of spatial factors and hemispheric lateralization upon hand-scanning strategies in 14 right-handed men tested in a tactual—tactual matching task. The experiment involved comparisons (judgments of same or different) between two objects sequentially touched by the fingertips of the left or right hand. Stimuli were made of smoothly joined cubes whose junctions were not haptically discernible. Exploratory strategies were inferred from the durations and locations of hand contacts with any of the cubes composing the stimuli. Accuracy was greater when the same stimulus was touched twice by the same hand than when different hands were used to feel it. With regard to strategies, both hands touched the upper parts of the object longer than the lower parts. Subjects also inspected more portions of the objects ipsilateral to the hand used. Overall differences in time spent touching cubes were greater for the right hand than for the left hand, showing that touch times were less evenly distributed on object parts for the former than for the latter. In this study, the process of information gathering by touch appears to be determined by the intertwining integration of contextual factors (e.g., stimulus position in space), biomechanical constraints on hand movements, and such cognitive factors as hemispheric differences on the ability to encode spatial pattern information. 相似文献
86.
Nicole Chiasson Jacques Proulx Claude Charbonneau 《International journal of psychology》1993,28(6):775-788
Dans le but de connaître la généralisation de données recueillies auprès d'enfants américains de race blanche et de race noire, cette recherche a porté sur la tendance d'enfants québécois francophones de lre, 3e et 4e années du primaire à partager leurs jeux avec les 25% d'enfants d'origines asiatique et latino-américaine de leur classe. S'aidant d'une photo du groupe, chaque sujet pouvait indiquer tous les enfants avec qui il aime ou n'aime pas jouer à la récréation. Outre une préférence pour les relations de même sexe, les résultats montrent, comme dans les études antérieures, une tendance, chez les Québécois, à partir de la troisième année, à créer des réseaux de relations où les néo-Québécois n'ont pas toute leur place. Par contre, ces derniers ne sont pas rejetés et bien peu d'enfants québécois les excluent complètement. Ces données sont mises en relation avec les caractéristiques générales de la population québécoise. 相似文献
87.
ROTATION OF MENTAL IMAGES IN BABOONS WHEN THE VISUAL INPUT IS DIRECTED TO THE LEFT CEREBRAL HEMISPHERE 总被引:1,自引:0,他引:1
Abstract— The mental rotation phenomenon was examined in baboons and humans using a video-formatted matching-to-sample task. Sample stimuli were presented either centrally or in the right or left visual half-field. Immediately afterward, subjects had to distinguish the previously presented sample Stimulus from its mirror image after both had been rotated to the same angular deviation. A mental rotation phenomenon was found in baboons and humans, but in baboons this effect wax limited to conditions in which visual input was directed to the right visual half-field. These data represent the first evidence of mental rotation in a nonhuman species. 相似文献
88.
89.
90.
Barry H. Schneider Jacques F. Richard Alastair J. Younger Paul Freeman 《European journal of social psychology》2000,30(4):497-519
The major purpose of this study was to determine the stability across time and social setting of children's social participation and social withdrawal. We followed a sample of Canadian children, aged five years at the beginning of the study, for two years. Children from lower‐SES homes were less involved than those from the higher‐SES in group play after school and during outdoor recess. Across the full sample, social withdrawal was not very stable. There was, however, considerable stability across setting and time among extreme groups of withdrawn participants. Social withdrawal was largely unrelated to parents' initiation of peer contacts for their children. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献