Neider says the delays older adults exhibited in starting to cross the street are probably due to "cognitive interference" rather than excessive caution.

CNN: Multitasking and crosswalks a risky mix for elderly

While distracted driving has been a major thrust of research in recent years, there has been relatively little examination of the effect that talking on a cell phone has on walking, Neider says.

CNN: Multitasking and crosswalks a risky mix for elderly

Although the older adults were no more likely to be struck by a (virtual) car, the findings nevertheless suggest that cell phones and other distractions pose a potential safety risk to older people, Neider says.

CNN: Multitasking and crosswalks a risky mix for elderly