In the present paper, we describe a method for recording the coordinates of a fish in an aquarium in a three-dimensional space, using a single video camera and a mirror. We use photogrammetic equations for this, considering the image obtained in the mirror as a virtual image obtained by a second camera. A transformation of the coordinate system is required to express the obtained coordinates in anx,y,z system defined by the edges of the aquarium. The accuracy of the proposed method was estimated, and errors in extreme conditions were found to be 0.8% to 1.2 %, compared with the dimensions of the aquarium used in the test. 相似文献
Two experiments tested whether a dogmatic alcohol prevention message may, by arousing psychological reactance (the motivation to reassert a threatened freedom) result in more subsequent alcohol consumption, compared to a neutral message. In Study 1, 535 college students received either a high-threat (dogmatic) or low-threat (neutral) message recommending either abstinence or controlled drinking. Results indicated that high-threat messages were rated more negatively and resulted in more drinking intentions compared to low threat. The negative effect of high threat on message ratings was most pronounced for habitually heavy drinkers and an abstinence-espousing message. In Study 2, under the guise of a “memory study,” 74 college students received either a high- or low-threat message recommending abstinence from alcohol. Then, under the guise of a “perception study,” all subjects participated in a taste-rating task in which their beer consumption was unobtrusively measured. Results indicated that the effect of high threat was most negative for male heavy drinkers, who drank significantly more beer compared to low-threat controls. These results suggest that the persuasive ability of alcohol prevention efforts depend to a considerable extent on the reactance-arousing properties of the materials and that dogmatic alcohol prevention materials may have counterproductive effects for some college students. 相似文献
Research has demonstrated that implicit theories of creativity are crucial in shaping an individual’s behavior and real‐life decisions toward being creative. The present study proposed and examined the underlying mechanisms of how two kinds of implicit theories—the growth mindset of the creative self and the stereotype of creative others—are associated with creative achievements through the mediating role of creativity motivation. Participants were 606 undergraduate students who were enrolled in an education major in two universities in China. Overall, the study found that Chinese students held a positive image toward a creative student, regarding him or her as highly competent, warm, and popular. Student perceptions of a creative other were positively related to their growth mindset of creativity. Moreover, results verified both the mediating role of creativity motivation on growth mindset, as well as the effect of positive stereotyping of the creative other on students’ creative achievement. These findings point to promising creativity motivation strategies including the cultivation of a malleable view of creativity and of creative role models, that may, in turn, promote creative achievement by encouraging students to do, learn, and accomplish new things. 相似文献
In recent years, sexual harassment has become more acknowledged in many developed countries. However, in East Asian culture, it is a sensitive and controversial topic upon which few scholars have focused. The current research aimed to explore whether the relationship between feminist identity and perception of sexual harassment was affected by target’s traditional or nontraditional gender stereotypicality and types of sexual harassment (unwanted sexual attention or gender harassment) among Chinese working women. The participants were 424 heterosexual women, aged 18 to 71 years-old (mdn?=?31), who completed surveys that assessed their feminist Active Commitment and perception of sexual harassment after reading a randomly assigned sexual harassment scenario. Women with higher scores on Active Commitment were more aware of both types of sexual harassment, and participants’ perception of unwanted sexual attention was significantly stronger than their perception of gender harassment. In addition, the types of targets and types of sexual harassment moderated the relationship between Active Commitment and the perception of sexual harassment. Our findings highlight the importance of feminist identity for the perception of sexual harassment and suggest that improving gender equality and feminist education is very important for enhancing the perception of sexual harassment.