Pope John Paul II's death amongst Polish, Italian, and Swiss Catholics. The results showed that personal involvement was most important in memory formation, followed by proximity to the event. Flashbulb memories differ among cultures with the degree to which certain factors influence the vividness of flashbulb memories. For example, Asian cultures de-emphasis individuality; therefore Chinese and Japanese people might not be as affected by the effects of personal involvement on vividness of flashbulb memories. A study conducted by Kulkofsky, Wang, Conway, Hou, Aydin, Johnson, and Williams (2011) investigated the formation of flashbulb memories in 5 countries: China, the United Kingdom, the United States, Germany, and Turkey. Overall participants in the United States and the United Kingdom reported more memories in a 5 minutes span than participants from Germany, Turkey, and China. This could simply be due to the fact that different cultures have different memory search strategies. In terms of flashbulb memories, Chinese participants were less affected by all factors related to personal closeness and involvement with the event. There were also cultural variations in effects of emotional intensity and surprise. Gender Some studies conducted in this area of research yielded findings indicating that women are able to produce more vivid details of events and recall autobiographical events elicited by Senate hearings than men. One such study had participants fill out questionnaires about flashbulb memories and recollections of autobiographical events pertaining to the Senate hearings that confirmed Clarence Thomas as a Supreme Court Justice (Morse, 1993). The study found that half of the individuals reported vivid memory images associated with the hearings. 64% of women reported images as opposed to 33% men. 77% of women reported having had stimulated recall of an autobiographical event, while only 27% of men indicated having experienced such recall. Women were more likely than men to report additional imagery (24% of women and 6% of men). Women were more likely than men to report vivid image memories and recall of autobiographical events elicited by the hearings, but they did not differ from men in the ratings of these memories. There was also no difference in the average amount of time spent consuming media on the hearing. A large body of research was conducted into events taking place during the 9/11 terrorist attacks, although it was not specifically researching gender differences. In one study researchers had participants answer questions to establish "consistent flashbulb memory," which consists