Conceptual but not perceptual encoding leads to age differences in priming.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Development

Background:

• Age-related differences in cognitive functions, including memory and priming, are well-documented.
• The specific factors influencing age differences in priming effects require further investigation.
• Online experimental methods are increasingly used but need validation against traditional laboratory settings.

Purpose of the Study:

• To investigate how cognitive processing requirements moderate age differences in priming.
• To compare online versus laboratory experiment methodologies for studying priming in aging.
• To examine the relationship between implicit (priming) and explicit (recognition) memory across age groups.

Main Methods:

• Three experiments were conducted, manipulating perceptual versus conceptual encoding before priming tasks (identification and category verification).
• Participants included young and older adults, with experiments conducted both online and in a laboratory setting.
• Recognition memory was assessed to compare implicit and explicit memory performance.

Main Results:

• Age differences in perceptual identification priming favored young adults with conceptual encoding but not with perceptual encoding.
• No age difference in priming was observed for the category verification task.
• Recognition memory showed age differences, particularly following conceptual encoding, mirroring priming effects.

Conclusions:

• Age differences in priming effects are contingent upon the cognitive processing demands during stimulus encoding.
• Online experimental methods appear feasible for studying priming in aging, showing similar patterns to laboratory studies.
• The findings underscore the importance of encoding processes in understanding memory and cognition across the lifespan.