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There is some controversy concerning whether or not the visual abilities of the newborn are mediated entirely through subcortical pathways or whether the visual cortex is functioning at birth. A critical test of cortical functioning is discrimination of orientation: orientation-selective neurons are found in the visual cortex but not in subcortical parts of the visual system. An experiment is described in which newborn infants were habituated to a square-wave grating oriented 45 degrees from vertical. After habituation, significant preferences for the novel, mirror-image, grating were found, a result which argues for some degree of visual cortical functioning at birth. 相似文献
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A sample of 112 administrators provided self-report data used to test two hypotheses derived from Korman's consistency model of work behavior. As predicted, those with high self-esteem experienced significantly greater need gratification than did those with low self-esteem, and self-esteem also significantly positively moderated the relationship between n gratification and work satisfaction. Need gratification was assessed for only those needs that were most salient for each person, thus eliminating a rival interpretation of the findings derived from the self-enhancement model of self-esteem. The moderating effect of self-esteem on the n gratification-work satisfaction relationship was limited to those experiencing low levels of n gratification, indicating a possible “boundary condition” of consistency theory. A problem with the use of moderator variables in behavioral science was also discussed. 相似文献
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The effect of prevocational contact on postentry behavior was studied using a sample of staff nurses. The results indicated that those nurses who had prevocational contact with the nursing occupation had different conceptions of the nursing role and more positive work attitudes than those who did not have prevocational contact with the profession. The groups. however, did not differ with respect to turnover. 相似文献
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In order to determine the reflectance of a surface, it is necessary to discount luminance changes produced by illumination variation, a process that requires the visual system to respond differently to luminance changes that are due to illumination and reflectance. It is known that various cues can be used in this process. By measuring the strength of lightness illusions, we find evidence that straightness is, used as a cue: When a boundary is straight rather than curved, it has a greater tendency to be discounted, as if it were an illumination edge. The strongest illusions occur when a boundary has high contrast and has multiple X-junctions that preserve a consistent contrast ratio. 相似文献
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Julie Mooney‐Somers Anna Olsen Wani Erick Robert Scott Angie Akee Lisa Maher 《Journal of community & applied social psychology》2012,22(6):519-532
National surveillance data indicate marked differences between Indigenous and other Australians in the prevalence of many sexually transmitted infections (STIs). Young Indigenous people bear a particularly high burden of these infections. A collaboration of university researchers, Indigenous health workers and young Indigenous people conducted 45 field interviews to examine how young Indigenous Australians keep themselves healthy and protected against STIs. Our findings emphasise the complexity of health behaviours, where individuals are rarely always ‘risky’ or always ‘safe’, as well as subtle gender differences in health practices. Preventive strategies employed by the young people were contingent on beliefs and knowledge about sexual partners, the type of relationship, the context of the sexual encounter and access to condoms. Tangible strengths such as young Indigenous people's commitments to condoms and STI screening should be celebrated and bolstered to enhance their ability to protect themselves against adverse health outcomes and enhance their resilience against STIs. Focusing on strengths helps to counter the deficit model of health commonly deployed in Indigenous health research and draws attention to health issues facing young Indigenous people and their communities, without reinforcing negative stereotypes or focusing solely on individual risk behaviour. We provide concrete recommendations for health promotion and education. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
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THE FATHER,THE FATHER FUNCTION,THE FATHER PRINCIPLE: SOME CONTEMPORARY PSYCHOANALYTIC DEVELOPMENTS 下载免费PDF全文
CLÁUDIO LAKS EIZIRIK 《The Psychoanalytic quarterly》2015,84(2):335-350
The author discusses Freud's thinking on the role of the father, as well as that of later French theoreticians. To illustrate his remarks, he draws on the poetry of Carlos Drummond de Andrade (1912–1987), a Brazilian poet whose work often dealt with themes of the father, the family, and his own paternal relationship. The author also discusses the psychic formation of the father principle and how this may be evident in the clinical analytic setting, even when the analyst's approach privileges field theory, intersubjectivity, or other concepts emphasizing the relationship between analyst and patient. 相似文献
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The purposes of this study were to examine group differences in sexual media consumption and to explore how well adolescents' sexual attitudes and behavior can be explained by viewing of sexually suggestive dialogue (SD) and explicit sexual content (SC) in television media. Participants were 473 male and female high school adolescents who were racially, economically, and age diverse. Television viewing was coded for SD and SC. Both length of time spent watching SD and SC and explicitness of the SD and SC to which adolescents were exposed were factored into the coding scheme. In this sample, SD and SC consumption varied by subgroup and explained variance in some sexual attitudes and behavior variables but not others, and in some demographic subgroups but not others. 相似文献