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171.
Perceptual interaction between monocular flashes and different amounts of continuously visible target structure shown to the other eye was investigated. A response variable called dominance of the flashes is defined and found to be a direct function of flash intensity and an inverse function of contraocular target structure. The dominance variable is distinguished from subjective brightness of the flashes and subjective complexity of the targets. The observed effects are attributed to limited central processing capacity with increased informational load. 相似文献
172.
Joseph E. O. Newton Oddist D. Murphree Roscoe A. Dykman 《Integrative psychological & behavioral science》1970,5(2):75-89
Two behaviorally distinct strains of pointer dogs, one bred for nervousness (pronounced freezing behavior, withdrawal behavior), the other bred for normal behavior, exhibit prominent differences in their heart rates and incidence of sporadic occurrences of atrioventricular heart block. Of 67 nervous-line dogs, 70 per cent showed second degree AV-block on at least one occasion, and their heart rates averaged 65 beats/min. Only 15 per cent of 52 normal-line dogs displayed AV-block (generally fewer instances per dog) and their heart rates averaged 110 beats/min. Fifth generation nervous-line puppies, two to six weeks old, exhibited occasional AV-block even at heart rates averaging 183 beats/min. The incidence and “severity” increased as the puppies aged. Dogs crossbred from second and third generation parents of the two main lines show intermediate incidences of AV-block and intermediate heart rates. The incidence of AV-block is predominant in females. This is interpreted as a sex-influenced, agedependent, polygenic mode of inheritance. Humoral factors probably account for the sex-influence, and psychological stress probably also plays a role. No sex difference is noted in heart rates. 相似文献
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Charlotte E. Shideler Donald C. DeLuca Joseph E. O. Newton Charles Angel 《Integrative psychological & behavioral science》1983,18(4):211-215
Muscle rigidity, a persistent physiological characteristic of the nervous Pointer dog, is not only attenuated by the major neuroleptic drugs, haloperidol and pimozide but also by naloxone. In addition, naloxone administration results in a modest but significant increase in heart rate of these subjects. The data obtained in this study add support for the concept that an abnormality in central nervous system dopaminergic function is involved in the genesis of abnormal behavior of this animal model. 相似文献
176.
Two studies were conducted to test hypotheses about the relationship of values to action within the context of expectancy-valence theory. In these studies, university students who had previously completed the Rokeach Value Survey answered questionnaires that related to social movement organizations and that contained attitude items, expectancy items, and measures of willingness to assist these organizations. It was predicted that (1) value rankings from the Rokeach Value Survey will be systematically related to attitudes toward social movement organizations; (2) both attitudes and outcome expectancies (subjects' estimates of how helpful their action will be) will be correlated with measures of willingness to act on behalf of an organization; and (3) attitudes and expectancies will jointly account for more of the variance in action measures than either attitudes or expectancies can account for independently. Results showed that hypotheses were consistently supported across two measures of action, two contrasting organizations, hypothetical and actual commitments to act, and two subject samples. These results extend the scope of the expectancy-valence approach by incorporating general values (conceived as motives) into the analysis, and they have practical implications for social movement strategies.The authors gratefully acknowledge the assistance of John Mann and John Crosbie in compiling and analyzing the data reported here. 相似文献
177.
Sunyna S. Williams Diane L. Kimble Nancy H. Covell Laura H. Weiss Kimberly J. Newton Jeffrey D. Fisher William A. Fisher 《Journal of applied social psychology》1992,22(12):921-933
Many college students engage in high levels of unsafe sexual behavior that puts them at risk for HIV infection. To better understand the dynamics underlying college students' unsafe behavior, focus group discussions were conducted with 308 students (146 men and 162 women). The results showed that, instead of consistently using condoms, many college students use implicit personality theories to judge the riskiness of potential sexual partners. Specifically, partners whom college students know and like are not perceived to be risky, even if what students know about these individuals is irrelevant to HIV status. The students determine the riskiness of partners they do not know well based on superficial characteristics that are also generally unrelated to HIV status. Therefore, AIDS prevention interventions for college students must expose the ineffectiveness of the students' use of implicit personality theories to determine potential partners' riskiness, and the “know your partner” safer sex guideline should be abandoned. 相似文献
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Roscoe A. Dykman Peggy T. Ackerman Joseph E. O. Newton 《Integrative psychological & behavioral science》1997,32(1):9-18
This article discusses past research bearing on the question of the etiology of Posttraumatic Stress Disorder (PTSD). It argues
that PTSD can be adequately accounted for by a process of emotional sensitization and that this is a more parsimonious explanation
than the two-factor learning theory of Mowrer, now postulated by several writers. In brief, the etiology and subsequent development
of PTSD is viewed as the result of the sensitization of fear/anxiety which is linked to a variety of to be conditional stimuli
by both backward and forward association: these become conditional stimuli (CSi) once paired with the instigating circumstances.
It is furthermore assumed that PTSD will not occur in the absence of a genetic susceptibility that may vary from zero to absolute
certainty. Thus far, our evidence is limited to a sensitivity to loud sounds, but it is highly probable that touch and other
sensory systems are involved (not necessarily in parallel). The fact that abuse often leads to behavioral disorders, including
sexually seductive behaviors in children sexually abused, requires a recognition that emotional reactions other than fear
may be sensitized. Fear in combination with pleasure or pleasure alone coupled with a loss of self-esteem may explain these
acting-out behaviors. 相似文献
180.
Myra Frances Taylor Nadia Clark Elaine Newton 《British Journal of Guidance & Counselling》2008,36(2):189-204
It has long been recognised that mature-aged sibling dyads provide each other with emotional support. What has yet to be determined is whether this support function is maintained within the baby boomer generational cohort of sibling dyads who through economic relocation/migration have become separated by distance. As such, this paper highlights the need for research to be conducted into the experiences of baby boomers dealing with sibling loss and grief-related issues without the support of their nuclear and extended family members. 相似文献