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The aging of emotional words processing in implicit and explicit emotion task: an ERP study
1Department of Psychology, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China.
Cerebral Cortex (New York, N.Y. : 1991)
|November 7, 2024
Summary
Cognitive aging impacts emotional word processing. Older adults show distinct neural responses and biases, suggesting different brain mechanisms for processing emotions compared to younger adults.
Area of Science:
- Cognitive neuroscience
- Psychology of aging
- Affective science
Background:
- Cognitive aging research explores changes in mental processes.
- Emotional word processing is crucial for social interaction.
- Event-related potential (ERP) studies offer insights into neural timing.
Purpose of the Study:
- To investigate age-related differences in emotional word processing.
- To compare neural responses to positive, negative, and neutral words in young and older adults.
- To examine implicit and explicit emotional processing across the lifespan.
Main Methods:
- Participants: Young and older adults.
- Tasks: Implicit lexical decision and explicit emotion categorization.
- Measures: Behavioral responses and event-related potentials (ERPs).
Main Results:
- Behaviorally, older adults showed a negative emotion effect in implicit tasks and a positivity bias in explicit tasks.
- ERPs revealed age differences in early (P2) and late (N400, late positivity) components.
- Young adults showed early negative emotion effects, while older adults exhibited negativity and positivity biases.
Conclusions:
- Cognitive aging alters emotional word processing mechanisms.
- Distinct neural pathways are involved in implicit and explicit emotional tasks for different age groups.
- Findings support the socioemotional selectivity theory regarding age-related emotional processing shifts.
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