Word: extracted
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...question since 1962, when University of Michigan Psychologist James McConnell reported that untrained flatworms could acquire knowledge by feasting on trained worms. Using rats and mice, some researchers have achieved experimental results that seem to prove statistically that learning, or memory, can indeed be transferred by injecting the brain extract of one animal into the brain of another. But since the tests were difficult to duplicate, the results could never be properly validated. Now a Baylor University scientist, writing in Nature, has reported an experiment that could help resolve the controversy...
Ungar then decapitated his fear-trained rats, and prepared an extract from their brains. He injected the extract into the brains of the untrained animals and found that the untrained mice began to shun darkness. The average time that members of one group spent in the dark box declined to 98 seconds when each was injected with three-tenths of a gram of extract. It went down to 67 seconds when the injection was increased to six-tenths of a gram, and to only 24 seconds when a full gram was administered. Other groups injected with extracts from the brains...
...Connections. After many such tests, Ungar concluded that the fear had indeed been transferred and that the degree of transfer depended on the amount of extract injected. It was also affected by the training of the donor rats-longer training produced better transfer-and the interval between training and removal of the donor-rat brain; brain removal too soon after training apparently prevented the transfer material from fully developing...
...wife Esther, it was among the latest of 102 letters that the 82 captured Americans have sent to President Johnson to U.S. Senators and to their own families and sweethearts since their ship was seized off North Korea in January. Having failed at the diplomatic level to extract an apology from the U.S. for the Pueblo's activities, the North Koreans are now playing on the understandable fears of the captive Navymen to launch a propaganda campaign and to try to force the U.S. into some sort of an admission of wrongdoing...
...vision as outlined in the book, is decidedly not a very radical one. Carmichael seems to see the black people of this country as being little different from traditional ethnic, immigrant groups. Thus, he would have the black people of America act as a disciplined interest group, to extract demands from the pluralistic society. This accomplished, he believes blacks can enter society on a relatively equal basis...