PIPages
Labs

Christopher S Green

University of Wisconsin-Madison, WI·Psychology

Can brain-training games really sharpen thinking, or do people improve just because they expect to? Cognitive training is studied as a way to boost mental skills in healthy adults.

Fields

Psychology

Neuroscience

Topics

placebo effect

cognitive training

brain training

Grants
1 known grant, through May 2028

What they work on

  1. Test whether cognitive training benefits can be produced by placebo, using 'pure expectation' methods in which participants are told that an inactive training program will improve their thinking.
  2. Test whether 'associative learning' methods, which pair training with a feeling of improved performance, can produce larger placebo effects on cognitive test scores.
  3. Compare the size of placebo effects in younger and older adults, across fluid intelligence, working memory and selective attention, and between in-lab and remote testing.
  4. Examine whether individual traits such as personality predict how strongly people respond to placebos in cognitive training.

More about the research

It is also studied as a way to slow or prevent age-related decline in people at risk for Alzheimer's disease and related dementias (ADRD). Critics argue that the gains may partly be placebo effects. Participants usually cannot be fully blinded, meaning they often can guess whether they received the real training. Yet few experiments have directly tested whether placebo effects occur in cognitive training, or whether they are large enough to explain past results.

Why it matters

Many conditions involve problems with thinking skills, including ADRD, attention-deficit/hyperactivity disorder (ADHD), schizophrenia, traumatic brain injury and mild cognitive impairment. Knowing how much of cognitive training's benefit comes from placebo could help researchers design and fairly evaluate treatments for these conditions. If placebo effects can be magnified, they might also be harnessed to strengthen interventions, especially for older adults at risk of dementia.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Examining the contributions of placebo effects in cognitive training

NIH · Jun 2022 – May 2028

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The school

University of Wisconsin-Madison: 91 labs on PI Pages, $1.9B a year on research, 854 research doctorates a year.

More about University of Wisconsin-Madison

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