temperatures still struggling, though, highs tomorrow oral in the mid forties. it will be a chilly weekend, chilly rain showers, snowflakes. we come out of it next week. we talk about where the sun runs coming up. jonathan: we may be getting answers into the accident that led to a car flipping over a bridge on i-275. a family surveillance video was pointed straight at the bridge when the 12-car accident happened. wlwt news 5 s jenell walton has a look at the video. reporter: this surveillance video captured the horrific happened. a car flips over the combs-hehl bridge, landing straight in the ohio river near coney island. a family, who doesn t want to be identified, realized today their home surveillance camera was pointed at the bridge. you can see the car flip and then crash into the river, sinking almost immediately. campbell county police believe driver. believe we know who might be have been driving at the time the vehicle went over the bridge. reporter: the chief says
Human multitasking suffers from a central attentional bottleneck preventing parallel performance of central mental operations, leading to profound deferments in task performance. While previous research assumed that the deferment is caused by a mere waiting time (refractory period), we show that the bottleneck requires executive functions (EF; active scheduling account) accounting for a profound part of the deferment. Three participant groups with EF impairments (dyslexics, highly neurotics, deprived smokers) showed worse multitasking performance than respective control groups. Three further groups with EF improvements (videogamers, bilinguals, coffee consumers) showed improved multitasking. Finally, three groups performed a dual-task and different measures of EF (reading span, rotation span, symmetry span) and showed significant correlations between multitasking performance and working memory capacity. Demands on EF during multitasking may cause more errors, mental fatigue and stress,