出たよ、イギリス版「メール脳の恐怖」

題して"Emails 'pose threat to IQ'"、The Guardian紙より。
http://www.guardian.co.uk/online/news/0,12597,1465973,00.html

"This is a very real and widespread phenomenon," said Glenn Wilson, a psychiatrist from King's College, London University, who carried out 80 clinical trials for TNS research, commissioned by the IT firm Hewlett Packard. The average IQ loss was measured at 10 points, more than double the four point mean fall found in studies of cannabis users.

The most damage was done, according to the survey, by the almost complete lack of discipline in handling emails. Dr Wilson and his colleagues found a compulsion to reply to each new message, leading to constant changes of direction which inevitably tired and slowed down the brain.

Manners are also going by the board, with one in five of the respondents breaking off from meals or social engagements to receive and deal with messages. Although nine out of 10 agreed that answering messages during face-to-face meetings or office conferences was rude, a third nonetheless felt that this had become "acceptable and seen as a sign of diligence and efficiency".

（via スラッシュドット ジャパン
http://slashdot.jp/science/05/04/25/0244250.shtml?topic=62 ）

詳しめの記事は
http://www.theregister.co.uk/2005/04/22/email_destroys_iq/

こういう別調査（31か国10万人の15歳生徒調査）も。
http://www.theregister.co.uk/2005/03/21/how_dumb_kids/