全文获取类型
收费全文 | 21322篇 |
免费 | 45篇 |
专业分类
21367篇 |
出版年
2021年 | 10篇 |
2020年 | 13篇 |
2019年 | 15篇 |
2018年 | 3504篇 |
2017年 | 2825篇 |
2016年 | 2260篇 |
2015年 | 201篇 |
2014年 | 84篇 |
2013年 | 168篇 |
2012年 | 584篇 |
2011年 | 2404篇 |
2010年 | 2527篇 |
2009年 | 1478篇 |
2008年 | 1717篇 |
2007年 | 2187篇 |
2006年 | 54篇 |
2005年 | 240篇 |
2004年 | 185篇 |
2003年 | 139篇 |
2002年 | 87篇 |
2001年 | 43篇 |
2000年 | 76篇 |
1999年 | 35篇 |
1998年 | 35篇 |
1997年 | 35篇 |
1996年 | 24篇 |
1995年 | 21篇 |
1994年 | 11篇 |
1993年 | 13篇 |
1992年 | 8篇 |
1991年 | 11篇 |
1990年 | 16篇 |
1989年 | 14篇 |
1988年 | 15篇 |
1987年 | 14篇 |
1986年 | 16篇 |
1985年 | 25篇 |
1984年 | 26篇 |
1983年 | 18篇 |
1982年 | 25篇 |
1981年 | 28篇 |
1980年 | 15篇 |
1979年 | 16篇 |
1978年 | 23篇 |
1976年 | 9篇 |
1975年 | 13篇 |
1974年 | 16篇 |
1973年 | 9篇 |
1967年 | 9篇 |
1966年 | 14篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
60 men were administered a questionnaire to assess whether the prevalence of alcoholism in men over 60 years of age in alcoholism treatment centers parallels the reported rates of late-onset for one-third or more alcoholics. Analysis showed 11% of the subjects were of late onset while 33% were quasilate onset. There were no significant differences in the life stress between alcoholics of early and later onset. 相似文献
62.
Within the last few years, considerable attention has been devoted to the possibility that the amelioration of stuttering in many novel speaking conditions is a function of vocal changes with or without accompanying modifications in prosodic expression. These formulations have made reference primarily to conditions in which stutterers were induced into one or another novel speech pattern by an external stimulus such as masking noise, a rhythmic cue, or by instructions to sing, or read in unison with another speaker. In contrast, far less attention has been paid to other ameliorative conditions that lack a novel external stimulus or special instructions that direct the stutterer to speak in some unique manner. Speaking or reading to a child is an example of this latter type of condition. The present study was conducted to see if nine adult stutterers and a matched group of nonstutterers would evince vocal changes as they read aloud to another adult, a child, and a child and adult together. There was also a fourth control condition wherein the subjects read to one of the experimenters. Dependent measures of disfluency and stuttering, fundamental frequency, fundamental frequency deviation, fluent reading rate, and peak vocal sound pressure level were made and treated statistically. The major findings of this study indicated that, relative to the control condition, both subject groups exhibited several vocal changes when reading to a child alone and to a child and adult together. In addition, the stutterers experienced a reduction in disfluency, but only when reading to the child alone. The normal speakers exhibited too few disfluencies in the control condition for any meaningful change to occur in that dependent variable. The fact that the stutterers evinced vocal changes in both experimental conditions but a significant drop in disfluency in just one bears importantly on hypotheses that emphasize vocal changes in conditions that ameliorate stuttering. 相似文献
63.
64.
Melodic and rhythmic context were systematically varied in a pattern recognition task involving pairs (standard-comparison) of nine-tone auditory sequences. The experiment was designed to test the hypothesis that rhythmic context can direct attention toward or away from tones which instantiate higher order melodic rules. Three levels of melodic structure (one, two, no higher order rules) were crossed with four levels of rhythm [isochronous, dactyl (A U U), anapest (U U A), irregular]. Rhythms were designed to shift accent locations on three centrally embedded tones. Listeners were more accurate in detecting violations of higher order melodic rules when the rhythmic context induced accents on tones which instantiated these rules. Effects are discussed in terms of attentional rhythmicity. 相似文献
65.
66.
67.
Marilyn Jager Adams 《Cognitive psychology》1979,11(2):133-176
Major hypotheses about the processes involved in word recognition are reviewed and then assessed through four experiments. The purpose of the first experiment was to examine some basic aspects of the processing of words, pseudowords, and nonwords, and beyond that, to discover basic differences in their processing that might underlie the word advantage. The second experiment was designed to assess the contribution of whole-word and letter cluster cues to the word advantage. Finally, Experiments III and IV were focused on the question of whether the word advantage can be wholly explained in terms of response bias or sophisticated guessing. Taken together, the results of these experiments were most compatible with criterion bias models. A version of the criterion bias model is suggested wherein the word advantage is attributed to interfacilitation among single letter and lexical units in memory. 相似文献
68.
69.
Combined treatment approaches, co-therapy and family work are three concepts which are under much discussion in psychiatry. This paper describes the systematic use of an integrated treatment approach used by co-therapists working with families in which a child was the referred patient. The rationale behind this approach together with its advantages and disadvantages are discussed. The authors conclude that the approach is sufficiently promising to merit formal evaluation. 相似文献
70.
Cognitive and physiological indices of sexual arousal in homosexual,bisexual, and heterosexual males
C. David Tollison Henry E. Adams Joseph W. Tollison 《Journal of psychopathology and behavioral assessment》1979,1(4):305-314
Cognitive and physiological indices of sexual arousal were investigated utilizing groups of homosexual, bisexual, and heterosexual subjects (ten subjects per group) who were presented both homosexual and heterosexual films and slides. The results indicated that both homosexual and heterosexual subjects were able to estimate accurately their degree of erection to the erotic stimuli. Bisexual subjects, however, showed a large discrepancy between the magnitude of actual erection and verbally reported estimates of penile tumescence. In terms of physiological arousal, the erectile responses of the homosexual and bisexual groups were indistinguishable, a finding which questions the existence of male bisexuality as distinct from homosexuality or as a different sexual orientation in males. 相似文献