“…On one hand, drivers may intentionally engage with notifications (e.g., texting a response to an incoming message), a visual-manual task that is known to increase crash risk considerably when performed on a handheld phone (Fitch et al, 2013). On the other hand, with or without intending to engage with notifications, drivers may be involuntarily affected by the auditory, visual, and/or tactile alerts that accompany notifications (Marulanda, Chen, & Donmez, 2015;Regan, Hallett, & Gordon, 2011). The sudden onset of peripheral visual stimuli (without message content), for example, has been shown to attract visual attention and degrade accelerator release times in response to lead vehicle braking events (Hoekstra-Atwood, 2015;Hoekstra-Atwood, Chen, Giang, & Donmez, 2014).…”