Monthly Archives: April 2009

by Susan Lang and Andrew Reed

Many older adults experience decline in mental processes. But this need not be a handicap, because they largely can compensate by relying more on their strong emotional functioning, which doesn't decline with age.

According to Cornell psychologist Joseph Mikels, "One way older adults may be able to compensate for declines in memory and other important decision-making processes is through preserved emotional skills."

Mikels has been studying the role of emotion-cognition interactions in complex decision making, and how the quality of decisions can be improved across the adult life span. He has found that older adults:

do not experience age-related declines in emotional processing.
should trust their "gut feelings" when making decisions.
prefer not to have too much choice.
Mikels, an assistant professor of human development in the College of Human Ecology, says that research suggests that older adults may differ substantially from younger adults in how they make decisions. As director of the Emotion and Cognition Laboratory, he conducts studies to examine how emotion interfaces with such cognitive processes as working memory and selective attention.

Mikels and others have found, in fact, that relying on emotion, rather than intensive deliberation, can play an important role in decision making. To determine whether older adults might benefit from a reliance on abilities that are spared from age-related declines -- namely emotional processing -- Mikels' research team presented older and younger adults with hypothetical health-related decisions (choosing a physician, for example), in which one of the alternatives was objectively superior to the others.

"When older adults relied on memory-based decision strategies, the quality of their decisions was quite a bit lower than their younger counterparts," Mikels said. "In stark contrast, when older adults relied on their gut feelings, the quality of their decisions was just as high as that of the younger adults."

By focusing older adults' attention on their "gut feelings," Mikels was able to significantly enhance the quality of their decisions. Indeed, studies suggest that older adults may not only prefer to "go with their gut," but that their decisions may benefit immensely from doing so, Mikels said.

Mikels has also found that older adults prefer having less choice in decision making. In a series of large-scale surveys conducted with Cornell colleague Kosali Simon in Ithaca and New York City, hundreds of younger and older adults reported how many options they wished to choose from in a variety of domains, from prescription drug plans to ice cream flavors. Critically, older adults wanted, on average, half as many options as younger adults, and the older the participant, the fewer choices they desired.

In a separate study, Mikels and Simon measured self-reports of how much money older versus younger adults would be willing to pay for varying degrees of choice among prescription drug plans. Whereas younger adults were willing to pay increasingly more for additional options, older adults were not. In other words, Mikels' research suggests that excessive choice may be especially undesirable as we age, as it not only undermines the quality of decisions, but also people's motivation to choose anything at all. Individuals who are faced with dozens of options are less satisfied with their decisions than people who choose from relatively few options, even when the decisions appear as simple as selecting a variety of jam. And, evidence is now suggesting that this "choice overload" effect may be especially pronounced for older adults.

As such, Mikels said it would seem especially prudent to buffer older adults from these ill effects by tailoring decision environments more closely to their abilities and preferences.

Susan Lang is an editor at the Cornell Chronicle. Andrew Reed is a human development graduate student.


By Sheri Hall
Reprinted with permission from ChronicleOnline, April 9, 2009

Chronic stress from growing up in poverty can physiologically impact children's brains, impairing their working memory and diminishing their ability to develop language, reading and problem-solving skills, reports a new Cornell study.

The study, published online March 30 in the Proceedings of the National Academy of Sciences, is one of the first to look at cognitive responses to physiological stress in children who live in poverty.

"There is a lot of evidence that low-income families are under tremendous amounts of stress, and we know already that stress has many implications," said lead author Gary W. Evans, the Elizabeth Lee Vincent Professor of Human Ecology in the Departments of Design and Environmental Analysis and of Human Development in Cornell's College of Human Ecology. "What these data raise is the possibility that stress is also related to cognitive development."

Evans and Michele A. Schamber '08, who worked with Evans as an undergraduate, have been gathering detailed data about 195 children from rural households above and below the poverty line for 14 years. They quantified the level of physiological stress each child experienced at ages 9 and 13 using a "stress score" called allostatic load, which combines measures of the stress hormones cortisol, epinephrine and norepinephrine, as well as blood pressure and body mass index.

At age 17, the subjects also underwent tests to measure their working memory, which is the ability to remember information in the short term. Working memory is crucial for everyday activities as well as for forming long-term memories.

Evans found that children who lived in impoverished environments for longer periods of time showed higher stress scores and suffered greater impairments in working memory as young adults. Those who spent their entire childhood in poverty scored about 20 percent lower on working memory than those who were never poor.

"When you are poor, when it rains it pours," Evans explained. "You may have housing problems. You may have more conflict in the family. There's a lot more pressure in paying the bills. You'll probably end up moving more often. We know that produces stress in families, including on the children.

"We put these things together and can say one reason we get this link between poverty and deficits in working memory may be from this chronic elevated stress," he said.

The findings suggest that government policies and programs that aim to reduce the income-performance gap should consider the stress children experience at home.

"It's not enough to just take our kids to the library," Evans said. "We need to also take into account that chronic stress takes a toll on their cognitive functioning."

Ordinarily, we think of stereotyping and prejudice as social responses to people. Indeed, researchers have found that the mere presence of a Black American target, for example, can bring to mind stereotypic associations.  In this talk, Dr. Eberhardt will present a wide variety of research studies that highlight how such racial associations may also influence our perception and interpretation of the physical world around us.

Dr. Eberhardt's visit sponsored by:

  • Law, Psychology & Human Development
  • Department of Human Development
  • Cornell Law School
  • Department of Psychology
  • Center for Behavioral Economics and Decision Research