Influence of intake of sweet solutions on the analgesic effect of a low dose of morphine in randomly bred rats

The time course for the development of morphine tolerance, following prolonged sweet intake, was examined in randomly bred Sabra rats. Exposure to 3% glucose in 6 mM saccharin solution increased drinking by about three times as compared to rats supplied only with water. Suppression of the analgesic effect of morphine was already detectable after 24 h of intake and became progressively more marked within the next 5 weeks. These results support an active interaction between sweet consumption and endogenous opioids in randomly bred rats.     

Attitudes toward male and female homosexuality and sex-role stereotypes in Israeli and American students

Although the legal and psychiatric status of homosexuals has drastically changed, public prejudice about homosexuality has not disappeared. Former studies have developed the idea that homophobia is closely related to conservatism in sex-role polarization. The present research investigated sex differences in attitudes toward male and female homosexuality and sex-role polarization in a cross-cultural perspective, comparing young, educated Israelis and Americans. One-hundred seventy students participated in the study, completing a sex-role survey, an attitude toward homosexuality questionnaire, and a social desirability scale. The results indicated that Israelis were more homophobic and more conservative in their sex-role polarization than Americans. Men were more homophobic and more generally conservative in sex-role orientation than women. A positive relationship was found between sex-role polarization and rejection of homosexuality within each of the samples. The results could not be attributed to social desirability. The significance of these findings is discussed in the context of sex differences and differences between Israeli and American cultures.The research reported here was conducted for an M.A. thesis of the second author under the supervision of the first author (in partial fulfillment of the requirements for a master's degree in psychology at the Hebrew University of Jerusalem).     

What does a person in a “TOT” state know that a person in a “don’t know” state doesn’t know

The purpose of this study was to examine the significance of Brown and McNeill’s (1966) findings regarding the “tip of the tongue” (TOT) phenomenon, A modified version of their procedure was used with 56 Ss. Although their findings that Ss in a TOT state can detect parts and properties of the missing word were generally replicated, a division of the TOT state into a variety of substates showed correct detection rate to vary greatly, depending on the substate involved. In addition, correct detection of partial information was demonstrated even when S declared he had no knowledge of the selected word (don’t know). It was suggested that a distinction be made between information detection based on knowledge of the characteristics common to the class of items of which the target is a member (“class detection”) and detection based on knowledge of characteristics specific to the target in question (“differential detection”). Both class and differential detection were found to obtain in TOT states as well as in the don’t know state. Some theoretical and methodological implications were suggested