Age-related similarities and differences in cognitive and neural processing revealed by task-related microstate...

Area of Science:

• Neuroscience
• Cognitive Psychology
• Gerontology

Background:

• Aging is associated with changes in neural processing.
• Understanding age-related cognitive differences requires examining various cognitive functions.

Purpose of the Study:

• To investigate age-related differences in neural processing across four distinct cognitive tasks.
• To compare event-related potential (ERP) and microstate analyses in younger and older adults.

Main Methods:

• Participants: Younger adults (YA) and older adults (OA).
• Tasks: Face perception (N170), word-pair judgment (N400), visual oddball (P3), and flanker (ERN).
• Analyses: ERP and task-related microstate analyses.

Main Results:

• N170: No age differences in amplitude or microstates, despite delayed latencies.
• P3 and N400: Older adults showed smaller condition differences and broader scalp distributions.
• ERN: Similar activation loci but differential patterns between age groups.

Conclusions:

• Age-related neural processing effects vary significantly across cognitive tasks.
• Findings support the STAC-r framework, indicating task-specific resource demands influence aging effects.