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Related Experiment Video

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Perceiving humanness across ages: neural correlates and behavioral patterns.

Toshiki Saito1,2,3, Rui Nouchi1,4, Ryo Ishibashi1,4,5

  • 1Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan.

Frontiers in Psychology
|April 19, 2024
PubMed
Summary
This summary is machine-generated.

Older adults are perceived as having more experience but not agency. Brain connectivity patterns differ when judging younger versus older faces, suggesting age influences humanness perception.

Keywords:
dehumanizationfMRIfunctional connectivityhumanness perceptionolder adults

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Area of Science:

  • Cognitive Neuroscience
  • Social Psychology
  • Gerontology

Background:

  • Humanness perception influences social interactions and can lead to prejudice against older adults.
  • Understanding age-related differences in humanness perception is crucial for mitigating ageism.

Purpose of the Study:

  • To investigate how target age affects humanness perception, specifically agency and experience.
  • To explore the neural mechanisms underlying age-based humanness perception using functional magnetic resonance imaging (fMRI).

Main Methods:

  • Healthy university students viewed facial images of younger and older adults.
  • Participants rated perceived humanness in terms of agency and experience while undergoing fMRI scans.
  • Functional connectivity analyses were performed on brain imaging data.

Main Results:

  • Older adults were rated higher on the "experience" dimension of humanness.
  • No significant difference in perceived "agency" between younger and older faces was found.
  • Distinct patterns of functional brain connectivity were observed when judging younger versus older faces, particularly involving the medial prefrontal cortex (mPFC) and the inferior frontal gyrus.

Conclusions:

  • Age influences the perception of humanness, with older adults perceived as having greater experience.
  • Neural connectivity patterns differ based on the age of the perceived individual, suggesting distinct processing pathways.
  • These findings highlight the complex interplay between age, perception, and neural activity in social cognition.