不断从刺激中分离分化出有效信息的过程被称为 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29685' and id < 2412012 and id<>'2412012' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29685' and id > 2412012 and id<>'2412012' order by id asc limit 5