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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Brain Responses to Passive Sensory Stimulation Correlate With Intelligence

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This study investigates the association between intelligence and brain power responses to a passive audiovisual stimulation. We measure the power of gamma-range steady-state responses (SSRs) as well as intelligence and other aspects of neurocognitive function in 40 healthy males born in 1953. The participants are a part of a Danish birth cohort study and the data therefore include additional information measured earlier in life. Our main power measure is the difference in power between a visual stimulation and a combined audiovisual stimulation. We hypothesize and establish empirically that the power measure is associated with intelligence. In particular, we find a highly significant correlation between the power measure and present intelligence scores. The association is robust to controlling for size-at-birth measures, length of education, speed of processing as well as a range of other potentially confounding factors. Interestingly, we find that intelligence scores measured earlier in life (childhood, youth, late midlife), are also correlated with the present-day power measure, suggesting a deep connection between intelligence and the power measure. Finally, we find that the power measure has a high sensitivity for detection of an intelligence score below the average.

Original languageEnglish
Article number201
JournalFrontiers in Aging Neuroscience
Volume11
Pages (from-to)201
ISSN1663-4365
DOIs
Publication statusPublished - 2019

    Research areas

  • Aging, EEG, Gamma power, Intelligence, Longitudinal intelligence scores, Neurocognitive function, Steady-state evoked potentials

ID: 57933376