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Updated: May 10, 2026

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
10:13

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Published on: February 14, 2014

Do dietary patterns influence cognitive function in old age?

Janie Corley1, John M Starr, Geraldine McNeill

  • 1Department of Psychology, University of Edinburgh, 7 George Square, Edinburgh EH8 9JZ, UK.

International Psychogeriatrics
|June 5, 2013
PubMed
Summary
This summary is machine-generated.

Childhood intelligence and socioeconomic status, not diet, may explain cognitive performance in old age. Higher childhood cognitive ability predicts healthier eating and better cognitive function later in life, suggesting a lifelong link.

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Last Updated: May 10, 2026

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
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06:58

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

Published on: January 24, 2020

Area of Science:

  • Neuroscience
  • Nutritional Science
  • Gerontology

Background:

  • Observational studies suggest healthy diets correlate with better cognitive function in older adults.
  • The influence of childhood intelligence quotient (IQ) and socioeconomic status (SES) on this association requires examination.

Purpose of the Study:

  • To investigate the extent to which childhood IQ and SES mediate the relationship between dietary patterns and cognitive performance in old age.
  • To determine if a direct link exists between diet and cognitive function in later life, or if it is influenced by lifelong factors.

Main Methods:

  • Analysis of 882 participants from the Lothian Birth Cohort 1936 Study.
  • Dietary patterns (Mediterranean-style, health aware, traditional, sweet foods) identified via principal components analysis of food frequency questionnaires.
  • Cognitive function (general ability, processing speed, memory, verbal ability) assessed at age 70.

Main Results:

  • Before adjustment for childhood IQ and SES, Mediterranean-style diet was linked to better cognition, and traditional diet to poorer cognition.
  • After adjusting for childhood IQ and SES, most dietary associations with cognitive performance lost statistical significance.
  • Exceptions included the Mediterranean-style pattern and verbal ability, and the traditional pattern with specific reading tests (NART, WTAR).

Conclusions:

  • Results suggest reverse causation or confounding, where higher childhood cognitive ability and adult SES predict healthier diets and better cognitive outcomes.
  • No direct link between diet and cognitive performance in old age was found; intelligence appears to be the mediating lifelong-stable trait.