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Published on: July 11, 2014
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Emotion identification and aging: Behavioral and neural age-related changes
Ana R Gonçalves1, Carina Fernandes2, Rita Pasion1
1Laboratory of Neuropsychophysiology, Faculty of Psychology and Education Sciences, University of Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal.
Summary
Older adults show similar facial emotion identification performance but altered neural responses, suggesting compensatory mechanisms for aging effects on facial affect processing.
Area of Science:
- Cognitive Neuroscience
- Aging and Emotion Processing
Background:
- Aging impacts facial expression of emotion (FEE) processing, but the specific neural dynamics and behavioral consequences remain unclear.
- Limited research exists on the temporal aspects of neural processing for facial affect across the adult lifespan.
Purpose of the Study:
- To investigate age-related behavioral and neural changes in identifying facial expressions of emotion (FEE).
- To explore the relationship between neuropsychological functioning and age-related differences in FEE processing.
- To analyze temporal dynamics of neural responses using event-related potentials (ERPs).
Main Methods:
- Examined behavioral and neural responses in younger, middle-aged, and older adults identifying FEE.
- Utilized event-related potentials (ERPs) to assess neural processing.
- Correlated behavioral/neural data with neuropsychological functioning assessments.
Main Results:
- Behavioral performance in FEE identification was comparable across age groups.
- Older adults exhibited increased N170 amplitude and asymmetric activation, suggesting altered neural processing.
- Reduced N250 amplitude in older adults indicated potential deficits in facial feature decoding.
Conclusions:
- Age-equivalent performance in emotion identification may be explained by compensatory neural functions.
- Neuropsychological functioning influences early neural processing (P100) but not overall emotion identification ability.
- Findings provide insights into neural mechanisms underlying facial affect processing in aging.
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