Arts & Sciences

Eternal sunshine of the aging mind

Older adults spend less time worrying and more time staying on task, according to a new study by WashU’s psychological and brain sciences researchers.

We’re all guilty of letting our minds wander when we’re supposed to be doing something else. A little distraction is likely inevitable. But a new study led by Matt Welhaf, PhD, a postdoctoral researcher in the Department of Psychological & Brain Sciences, reveals a surprising trend: Our minds wander less as we age and, when older adults do let their minds drift, they’re more likely to be distracted by pleasant thoughts rather than worries.


Co-authors of the study, published in The Journals of Gerontology, Series B: Psychological Sciences and Social Sciences, include Julie Bugg, PhD, professor of psychological and brain sciences, and Jonathan Banks, associate professor in the Department of Psychology and Neuroscience at Nova Southeastern University in Fort Lauderdale, Florida.

Researchers recruited 175 younger adults aged 18 to 35 and 175 adults over 60 to participate in the study. Subjects were asked to perform a simple online task, such as hitting a spacebar every time the name of an animal appeared on the screen. During the task, subjects periodically saw a prompt asking if they were thinking about the task, their performance, or something off-task. If their mind had strayed, they were asked if they were thinking about something negative, positive, or neutral.

Compared with older adults, younger adults were more likely to be thinking about something other than the task, a finding that echoes previous studies. But this was the first study to take a closer look at the emotional content of wandering thoughts. Compared to older adults, younger adults reported more passing thoughts that they perceived as negative. “They might have been thinking, ‘Wow this is so boring, and I have other things to do today’ or ‘I have bills I need to pay,’” Welhaf suggested.

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