The development of control processes supporting source memory discrimination as revealed by event-related potentials

Area of Science:

• Cognitive Neuroscience
• Developmental Psychology

Background:

• Source memory, crucial for recalling contextual details, is believed to develop alongside executive functions.
• Event-related potentials (ERPs) offer insights into the timing and neural correlates of cognitive processes.

Purpose of the Study:

• To investigate the developmental trajectory of source memory and its underlying executive control mechanisms.
• To examine the role of stimulus- and response-locked ERPs in understanding age-related changes in source memory.

Main Methods:

• Participants (children, adolescents, adults) performed a recognition memory exclusion task.
• Stimulus- and response-locked event-related potentials (ERPs) were recorded during the task.
• Behavioral performance and ERP data were analyzed across age groups.

Main Results:

• Source memory performance significantly improved with age.
• All age groups showed episodic memory (EM) effects, indicating successful recollection.
• Response-locked ERPs diverged earlier with increasing age, suggesting enhanced control processes.

Conclusions:

• The maturation of executive control processes, particularly attentional control and response inhibition, underpins the development of source memory.
• Adults demonstrated superior inhibitory control over prepotent responses compared to younger participants.
• Findings highlight the critical role of control mechanisms in accurate memory selection throughout development.