USC study says rapid - response Twitter and news feeds are too fast for brain . Scans show humans respond rapidly to news , but not to , admiration . USC sociologist Manuel Castells said the study raised more concerns over fast-moving TV than the online environment . Scientists say reliance in Twitter or news feeds can harm moral ##s .
USC study says rapid - response Twitter and news feeds are too fast for brain . Scans show humans respond rapidly to news , but not to , admiration . Scientists say reliance in Twitter or news feeds can harm moral ##s .